Staging: comedi: remove comedi-specific wrappers

There are a number of comedi "wrappers" for some RT functions that are
about to go away.  This patch removes all of the wrapper calls within
the comedi drivers and core in order to prepare for removing the RT
comedi code.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

86 files changed, 1026 insertions, 1061 deletions

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index bb4a2897feae..9713fc746561 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -728,7 +728,7 @@ static int check_insn_config_length(struct comedi_insn *insn, unsigned int *data
 	/* by default we allow the insn since we don't have checks for
 	 * all possible cases yet */
 	default:
-		rt_printk("comedi: no check for data length of config insn id "
+		printk("comedi: no check for data length of config insn id "
 			  "%i is implemented.\n"
 			  " Add a check to %s in %s.\n"
 			  " Assuming n=%i is correct.\n", data[0], __func__,
@@ -1219,12 +1219,12 @@ static int do_lock_ioctl(struct comedi_device *dev, unsigned int arg, void *file
 		return -EINVAL;
 	s = dev->subdevices + arg;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	if (s->busy || s->lock)
 		ret = -EBUSY;
 	else
 		s->lock = file;
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	if (ret < 0)
 		return ret;
@@ -1984,8 +1984,7 @@ module_exit(comedi_cleanup);
 
 void comedi_error(const struct comedi_device *dev, const char *s)
 {
-	rt_printk("comedi%d: %s: %s\n", dev->minor, dev->driver->driver_name,
-		  s);
+	printk("comedi%d: %s: %s\n", dev->minor, dev->driver->driver_name, s);
 }
 
 void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -2054,10 +2053,10 @@ void comedi_set_subdevice_runflags(struct comedi_subdevice *s, unsigned mask,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	s->runflags &= ~mask;
 	s->runflags |= (bits & mask);
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 }
 
 unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
@@ -2065,9 +2064,9 @@ unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
 	unsigned long flags;
 	unsigned runflags;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 	runflags = s->runflags;
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 	return runflags;
 }
 
@@ -2125,14 +2124,14 @@ int comedi_alloc_board_minor(struct device *hardware_device)
 		return -ENOMEM;
 	}
 	comedi_device_init(info->device);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; ++i) {
 		if (comedi_file_info_table[i] == NULL) {
 			comedi_file_info_table[i] = info;
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	if (i == COMEDI_NUM_BOARD_MINORS) {
 		comedi_device_cleanup(info->device);
 		kfree(info->device);
@@ -2184,10 +2183,10 @@ void comedi_free_board_minor(unsigned minor)
 	struct comedi_device_file_info *info;
 
 	BUG_ON(minor >= COMEDI_NUM_BOARD_MINORS);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[minor];
 	comedi_file_info_table[minor] = NULL;
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 
 	if (info) {
 		struct comedi_device *dev = info->device;
@@ -2218,14 +2217,14 @@ int comedi_alloc_subdevice_minor(struct comedi_device *dev,
 	info->device = dev;
 	info->read_subdevice = s;
 	info->write_subdevice = s;
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	for (i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_MINORS; ++i) {
 		if (comedi_file_info_table[i] == NULL) {
 			comedi_file_info_table[i] = info;
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	if (i == COMEDI_NUM_MINORS) {
 		kfree(info);
 		printk(KERN_ERR "comedi: error: ran out of minor numbers for board device files.\n");
@@ -2283,10 +2282,10 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s)
 	BUG_ON(s->minor >= COMEDI_NUM_MINORS);
 	BUG_ON(s->minor < COMEDI_FIRST_SUBDEVICE_MINOR);
 
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[s->minor];
 	comedi_file_info_table[s->minor] = NULL;
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 
 	if (s->class_dev) {
 		device_destroy(comedi_class, MKDEV(COMEDI_MAJOR, s->minor));
@@ -2301,9 +2300,9 @@ struct comedi_device_file_info *comedi_get_device_file_info(unsigned minor)
 	struct comedi_device_file_info *info;
 
 	BUG_ON(minor >= COMEDI_NUM_MINORS);
-	comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
+	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	info = comedi_file_info_table[minor];
-	comedi_spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
+	spin_unlock_irqrestore(&comedi_file_info_table_lock, flags);
 	return info;
 }
 
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index e5185ac3604c..42a02571ff1b 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -554,7 +554,7 @@ unsigned int comedi_buf_munge(struct comedi_async *async, unsigned int num_bytes
 
 		block_size = num_bytes - count;
 		if (block_size < 0) {
-			rt_printk("%s: %s: bug! block_size is negative\n",
+			printk("%s: %s: bug! block_size is negative\n",
 				__FILE__, __func__);
 			break;
 		}
@@ -633,8 +633,7 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
 {
 	if ((int)(async->buf_write_count + nbytes -
 			async->buf_write_alloc_count) > 0) {
-		rt_printk
-			("comedi: attempted to write-free more bytes than have been write-allocated.\n");
+		printk("comedi: attempted to write-free more bytes than have been write-allocated.\n");
 		nbytes = async->buf_write_alloc_count - async->buf_write_count;
 	}
 	async->buf_write_count += nbytes;
@@ -667,8 +666,7 @@ unsigned comedi_buf_read_free(struct comedi_async *async, unsigned int nbytes)
 	smp_mb();
 	if ((int)(async->buf_read_count + nbytes -
 			async->buf_read_alloc_count) > 0) {
-		rt_printk
-			("comedi: attempted to read-free more bytes than have been read-allocated.\n");
+		printk("comedi: attempted to read-free more bytes than have been read-allocated.\n");
 		nbytes = async->buf_read_alloc_count - async->buf_read_count;
 	}
 	async->buf_read_count += nbytes;
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
index 4ad8253dc08f..d288289143ea 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
+++ b/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h
@@ -343,7 +343,7 @@ int i_find_free_pci_card_by_position(unsigned short vendor_id,
 				*card = amcc;
 				return 0;	/* ok, card is found */
 			} else {
-				rt_printk(" - \nCard on requested position is used b:s %d:%d!\n",
+				printk(" - \nCard on requested position is used b:s %d:%d!\n",
 					  pci_bus, pci_slot);
 				return 2;	/* card exist but is used */
 			}
@@ -447,7 +447,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 		/* use autodetection */
 		card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
@@ -455,18 +455,18 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 							 pci_bus, pci_slot,
 							 &card)) {
 		case 1:
-			rt_printk(" - Card not found on requested position b:s %d:%d!\n",
+			printk(" - Card not found on requested position b:s %d:%d!\n",
 				  pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk(" - Card on requested position is used b:s %d:%d!\n",
+			printk(" - Card on requested position is used b:s %d:%d!\n",
 				  pci_bus, pci_slot);
 			return NULL;
 		}
 	}
 
 	if (pci_card_alloc(card, i_Master) != 0) {
-		rt_printk(" - Can't allocate card!\n");
+		printk(" - Can't allocate card!\n");
 		return NULL;
 
 	}
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index 58d7bf1654c8..df6908f68177 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -2583,7 +2583,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		v_pci_card_list_init(this_board->i_VendorId, 1);	/* 1 for displaying the list.. */
 		pci_list_builded = 1;
 	}
-	/* rt_printk("comedi%d: addi_common: board=%s",dev->minor,this_board->pc_DriverName); */
+	/* printk("comedi%d: addi_common: board=%s",dev->minor,this_board->pc_DriverName); */
 
 	if ((this_board->i_Dma) && (it->options[2] == 0)) {
 		i_Dma = 1;
@@ -2648,16 +2648,16 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* ## */
 
 	if (irq > 0) {
-		if (comedi_request_irq(irq, v_ADDI_Interrupt, IRQF_SHARED,
+		if (request_irq(irq, v_ADDI_Interrupt, IRQF_SHARED,
 				c_Identifier, dev) < 0) {
 			printk(", unable to allocate IRQ %u, DISABLING IT",
 				irq);
 			irq = 0;	/* Can't use IRQ */
 		} else {
-			rt_printk("\nirq=%u", irq);
+			printk("\nirq=%u", irq);
 		}
 	} else {
-		rt_printk(", IRQ disabled");
+		printk(", IRQ disabled");
 	}
 
 	printk("\nOption %d %d %d\n", it->options[0], it->options[1],
@@ -2719,7 +2719,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				}
 			}
 			if (!devpriv->ul_DmaBufferVirtual[0]) {
-				rt_printk
+				printk
 					(", Can't allocate DMA buffer, DMA disabled!");
 				devpriv->us_UseDma = ADDI_DISABLE;
 			}
@@ -2730,7 +2730,7 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 
 		if ((devpriv->us_UseDma == ADDI_ENABLE)) {
-			rt_printk("\nDMA ENABLED\n");
+			printk("\nDMA ENABLED\n");
 		} else {
 			printk("\nDMA DISABLED\n");
 		}
@@ -2937,7 +2937,7 @@ static int i_ADDI_Detach(struct comedi_device *dev)
 		}
 
 		if (dev->irq) {
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		}
 
 		if ((devpriv->ps_BoardInfo->pc_EepromChip == NULL)
diff --git a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
index ba89ff93a4e1..b76f877f250a 100644
--- a/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
+++ b/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h
@@ -335,7 +335,7 @@ int i_find_free_pci_card_by_position(unsigned short vendor_id,
 				*card = amcc;
 				return 0;	/*  ok, card is found */
 			} else {
-				rt_printk
+				printk
 				    (" - \nCard on requested position is used b:s %d:%d!\n",
 				     pci_bus, pci_slot);
 				return 2;	/*  card exist but is used */
@@ -425,7 +425,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 	if ((pci_bus < 1) & (pci_slot < 1)) {	/*  use autodetection */
 		card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
@@ -433,12 +433,12 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 							 pci_bus, pci_slot,
 							 &card)) {
 		case 1:
-			rt_printk
+			printk
 			    (" - Card not found on requested position b:s %d:%d!\n",
 			     pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk
+			printk
 			    (" - Card on requested position is used b:s %d:%d!\n",
 			     pci_bus, pci_slot);
 			return NULL;
@@ -446,7 +446,7 @@ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 	}
 
 	if (i_pci_card_alloc(card) != 0) {
-		rt_printk(" - Can't allocate card!\n");
+		printk(" - Can't allocate card!\n");
 		return NULL;
 	}
 
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index 69d5c3a92f08..169cee41b871 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -2637,7 +2637,7 @@ int i_APCI3120_InsnWriteAnalogOutput(struct comedi_device *dev,
 	}
 
 /*
- * out put n values at the given channel. rt_printk("\nwaiting for
+ * out put n values at the given channel. printk("\nwaiting for
  * DA_READY BIT");
  */
 	do			/* Waiting of DA_READY BIT */
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 288ad8151dd1..0ac722e6f37a 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -420,7 +420,7 @@ static void pci9111_timer_set(struct comedi_device *dev)
 		PCI9111_8254_READ_LOAD_LSB_MSB |
 		PCI9111_8254_MODE_2 | PCI9111_8254_BINARY_COUNTER);
 
-	comedi_udelay(1);
+	udelay(1);
 
 	pci9111_8254_counter_2_set(dev_private->timer_divisor_2);
 	pci9111_8254_counter_1_set(dev_private->timer_divisor_1);
@@ -901,7 +901,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 	async = subdevice->async;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 
 	/*  Check if we are source of interrupt */
 	intcsr = inb(dev_private->lcr_io_base +
@@ -919,7 +919,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 						PLX9050_LINTI2_STATUS))))) {
 		/*  Not the source of the interrupt. */
 		/*  (N.B. not using PLX9050_SOFTWARE_INTERRUPT) */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		return IRQ_NONE;
 	}
 
@@ -928,7 +928,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 		/*  Interrupt comes from fifo_half-full signal */
 
 		if (pci9111_is_fifo_full()) {
-			comedi_spin_unlock_irqrestore(&dev->spinlock,
+			spin_unlock_irqrestore(&dev->spinlock,
 				irq_flags);
 			comedi_error(dev, PCI9111_DRIVER_NAME " fifo overflow");
 			pci9111_interrupt_clear();
@@ -1028,7 +1028,7 @@ static irqreturn_t pci9111_interrupt(int irq, void *p_device)
 
 	pci9111_interrupt_clear();
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	comedi_event(dev, subdevice);
 
@@ -1298,8 +1298,7 @@ static int pci9111_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	dev->irq = 0;
 	if (pci_device->irq > 0) {
-		if (comedi_request_irq(pci_device->irq,
-				pci9111_interrupt,
+		if (request_irq(pci_device->irq, pci9111_interrupt,
 				IRQF_SHARED, PCI9111_DRIVER_NAME, dev) != 0) {
 			printk("comedi%d: unable to allocate irq  %u\n",
 				dev->minor, pci_device->irq);
@@ -1379,7 +1378,7 @@ static int pci9111_detach(struct comedi_device *dev)
 	/*  Release previously allocated irq */
 
 	if (dev->irq != 0) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (dev_private != 0 && dev_private->pci_device != 0) {
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 59b6498ded60..65f522be9124 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -80,7 +80,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI9118_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -345,12 +345,12 @@ static int pci9118_insn_read_ai(struct comedi_device *dev, struct comedi_subdevi
 
 	for (n = 0; n < insn->n; n++) {
 		outw(0, dev->iobase + PCI9118_SOFTTRG);	/* start conversion */
-		comedi_udelay(2);
+		udelay(2);
 		timeout = 100;
 		while (timeout--) {
 			if (inl(dev->iobase + PCI9118_ADSTAT) & AdStatus_ADrdy)
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		comedi_error(dev, "A/D insn timeout");
@@ -569,7 +569,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 #ifdef PCI9118_PARANOIDCHECK
 	if (devpriv->ai16bits == 0) {
 		if ((sampl & 0x000f) != devpriv->chanlist[s->async->cur_chan]) {	/*  data dropout! */
-			rt_printk
+			printk
 				("comedi: A/D  SAMPL - data dropout: received channel %d, expected %d!\n",
 				sampl & 0x000f,
 				devpriv->chanlist[s->async->cur_chan]);
@@ -950,11 +950,11 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-/* rt_printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("S1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 			&divisor2, &cmd->scan_begin_arg,
 			cmd->flags & TRIG_ROUND_MASK);
-/* rt_printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("S2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->scan_begin_arg < this_board->ai_ns_min)
 			cmd->scan_begin_arg = this_board->ai_ns_min;
 		if (tmp != cmd->scan_begin_arg)
@@ -966,7 +966,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
 			&divisor2, &cmd->convert_arg,
 			cmd->flags & TRIG_ROUND_MASK);
-/* rt_printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s1 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 		if (cmd->convert_arg < this_board->ai_ns_min)
 			cmd->convert_arg = this_board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -980,7 +980,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 					cmd->scan_begin_arg =
 						this_board->ai_ns_min *
 						(cmd->scan_end_arg + 2);
-/* rt_printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s2 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			} else {
@@ -989,7 +989,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 					cmd->scan_begin_arg =
 						cmd->convert_arg *
 						cmd->chanlist_len;
-/* rt_printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
+/* printk("s3 timer1=%u timer2=%u\n",cmd->scan_begin_arg,cmd->convert_arg); */
 					err++;
 				}
 			}
@@ -1033,7 +1033,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		if (dmalen0 < (devpriv->ai_n_realscanlen << 1)) {
 			/*  uff, too short DMA buffer, disable EOS support! */
 			devpriv->ai_flags &= (~TRIG_WAKE_EOS);
-			rt_printk
+			printk
 				("comedi%d: WAR: DMA0 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
 				dev->minor, dmalen0,
 				devpriv->ai_n_realscanlen << 1);
@@ -1044,7 +1044,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			if (devpriv->useeoshandle)
 				dmalen0 += 2;
 			if (dmalen0 < 4) {
-				rt_printk
+				printk
 					("comedi%d: ERR: DMA0 buf len bug? (%d<4)\n",
 					dev->minor, dmalen0);
 				dmalen0 = 4;
@@ -1055,7 +1055,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 		if (dmalen1 < (devpriv->ai_n_realscanlen << 1)) {
 			/*  uff, too short DMA buffer, disable EOS support! */
 			devpriv->ai_flags &= (~TRIG_WAKE_EOS);
-			rt_printk
+			printk
 				("comedi%d: WAR: DMA1 buf too short, cann't support TRIG_WAKE_EOS (%d<%d)\n",
 				dev->minor, dmalen1,
 				devpriv->ai_n_realscanlen << 1);
@@ -1066,7 +1066,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev)
 			if (devpriv->useeoshandle)
 				dmalen1 -= 2;
 			if (dmalen1 < 4) {
-				rt_printk
+				printk
 					("comedi%d: ERR: DMA1 buf len bug? (%d<4)\n",
 					dev->minor, dmalen1);
 				dmalen1 = 4;
@@ -1464,7 +1464,7 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outl(devpriv->AdControlReg, dev->iobase + PCI9118_ADCNTRL);
 	devpriv->AdFunctionReg = AdFunction_PDTrg | AdFunction_PETrg;	/*  positive triggers, no S&H, no burst, burst stop, no post trigger, no about trigger, trigger stop */
 	outl(devpriv->AdFunctionReg, dev->iobase + PCI9118_ADFUNC);
-	comedi_udelay(1);
+	udelay(1);
 	outl(0, dev->iobase + PCI9118_DELFIFO);	/*  flush FIFO */
 	inl(dev->iobase + PCI9118_ADSTAT);	/*  flush A/D and INT status register */
 	inl(dev->iobase + PCI9118_INTSRC);
@@ -1497,7 +1497,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		return 0;
 	}
 	if ((frontadd + n_chan + backadd) > s->len_chanlist) {
-		rt_printk
+		printk
 			("comedi%d: range/channel list is too long for actual configuration (%d>%d)!",
 			dev->minor, n_chan,
 			s->len_chanlist - frontadd - backadd);
@@ -1641,7 +1641,7 @@ static int setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 #endif
 #endif
 	outl(0, dev->iobase + PCI9118_SCANMOD);	/*  close scan queue */
-/* comedi_udelay(100);                               important delay, or first sample will be cripled */
+/* udelay(100);                               important delay, or first sample will be cripled */
 
 	DPRINTK("adl_pci9118 EDBG: END: setup_channel_list()\n");
 	return 1;		/*  we can serve this with scan logic */
@@ -1716,7 +1716,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 	outl(0x74, dev->iobase + PCI9118_CNTCTRL);
 	outl(0xb4, dev->iobase + PCI9118_CNTCTRL);
 /* outl(0x30, dev->iobase + PCI9118_CNTCTRL); */
-	comedi_udelay(1);
+	udelay(1);
 
 	if ((mode == 1) || (mode == 2) || (mode == 4)) {
 		outl(divisor2 & 0xff, dev->iobase + PCI9118_CNT2);
@@ -1817,7 +1817,7 @@ static int pci9118_reset(struct comedi_device *dev)
 	outl(devpriv->ao_data[0], dev->iobase + PCI9118_DA1);	/*  reset A/D outs to 0V */
 	outl(devpriv->ao_data[1], dev->iobase + PCI9118_DA2);
 	outl(0, dev->iobase + PCI9118_DO);	/*  reset digi outs to L */
-	comedi_udelay(10);
+	udelay(10);
 	inl(dev->iobase + PCI9118_AD_DATA);
 	outl(0, dev->iobase + PCI9118_DELFIFO);	/*  flush FIFO */
 	outl(0, dev->iobase + PCI9118_INTSRC);	/*  remove INT requests */
@@ -1848,7 +1848,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	unsigned char pci_bus, pci_slot, pci_func;
 	u16 u16w;
 
-	rt_printk("comedi%d: adl_pci9118: board=%s", dev->minor,
+	printk("comedi%d: adl_pci9118: board=%s", dev->minor,
 		this_board->name);
 
 	opt_bus = it->options[0];
@@ -1861,7 +1861,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_private(dev, sizeof(struct pci9118_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -1890,10 +1890,10 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -1909,7 +1909,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	iobase_a = pci_resource_start(pcidev, 0);
 	iobase_9 = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx, 0x%4lx", pci_bus, pci_slot,
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx, 0x%4lx", pci_bus, pci_slot,
 		pci_func, iobase_9, iobase_a);
 
 	dev->iobase = iobase_9;
@@ -1923,16 +1923,16 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	if (it->options[3] & 2)
 		irq = 0;	/*  user don't want use IRQ */
 	if (irq > 0) {
-		if (comedi_request_irq(irq, interrupt_pci9118, IRQF_SHARED,
+		if (request_irq(irq, interrupt_pci9118, IRQF_SHARED,
 				"ADLink PCI-9118", dev)) {
-			rt_printk(", unable to allocate IRQ %d, DISABLING IT",
+			printk(", unable to allocate IRQ %d, DISABLING IT",
 				irq);
 			irq = 0;	/* Can't use IRQ */
 		} else {
-			rt_printk(", irq=%u", irq);
+			printk(", irq=%u", irq);
 		}
 	} else {
-		rt_printk(", IRQ disabled");
+		printk(", IRQ disabled");
 	}
 
 	dev->irq = irq;
@@ -1958,7 +1958,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 			}
 		}
 		if (!devpriv->dmabuf_virt[0]) {
-			rt_printk(", Can't allocate DMA buffer, DMA disabled!");
+			printk(", Can't allocate DMA buffer, DMA disabled!");
 			master = 0;
 		}
 
@@ -1969,9 +1969,9 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	devpriv->master = master;
 	if (devpriv->master)
-		rt_printk(", bus master");
+		printk(", bus master");
 	else
-		rt_printk(", no bus master");
+		printk(", no bus master");
 
 	devpriv->usemux = 0;
 	if (it->options[2] > 0) {
@@ -1982,7 +1982,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 			if (devpriv->usemux > 128) {
 				devpriv->usemux = 128;	/*  max 128 channels with softare S&H! */
 			}
-		rt_printk(", ext. mux %d channels", devpriv->usemux);
+		printk(", ext. mux %d channels", devpriv->usemux);
 	}
 
 	devpriv->softsshdelay = it->options[4];
@@ -1995,7 +1995,7 @@ static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it
 		devpriv->softsshhold = 0x80;
 	}
 
-	rt_printk(".\n");
+	printk(".\n");
 
 	pci_read_config_word(devpriv->pcidev, PCI_COMMAND, &u16w);
 	pci_write_config_word(devpriv->pcidev, PCI_COMMAND, u16w | 64);	/*  Enable parity check for parity error */
@@ -2081,7 +2081,7 @@ static int pci9118_detach(struct comedi_device *dev)
 		if (devpriv->valid)
 			pci9118_reset(dev);
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		if (devpriv->pcidev) {
 			if (dev->iobase) {
 				comedi_pci_disable(devpriv->pcidev);
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index c51e9ba58808..d09d1493a8b7 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -325,7 +325,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
         channel = CR_CHAN(insn->chanspec);
         if (channel != devpriv->last_channel || range != devpriv->last_range) {
           outb((range << 4) | channel, dev->iobase + ADQ12B_CTREG);
-          comedi_udelay(50);   /* wait for the mux to settle */
+          udelay(50);   /* wait for the mux to settle */
         }
 
         /* trigger conversion */
@@ -337,7 +337,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
           /* wait for end of convertion */
 	  i = 0;
           do {
-/* comedi_udelay(1); */
+/* udelay(1); */
 	    status = inb(dev->iobase + ADQ12B_STINR);
             status = status & ADQ12B_EOC;
           } while (status == 0 && ++i < TIMEOUT);
@@ -347,7 +347,7 @@ static int adq12b_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
           hi = inb(dev->iobase + ADQ12B_ADHIG);
           lo = inb(dev->iobase + ADQ12B_ADLOW);
 
-          /* rt_printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n", channel, range, status,  hi, lo); */
+          /* printk("debug: chan=%d range=%d status=%d hi=%d lo=%d\n", channel, range, status,  hi, lo); */
           data[n] = (hi << 8) | lo;
 
         }
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index f0aa576dc9e8..0b56c14e2d59 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -58,7 +58,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI171X_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -348,7 +348,7 @@ static int pci171x_insn_read_ai(struct comedi_device *dev, struct comedi_subdevi
 		outw(0, dev->iobase + PCI171x_SOFTTRG);	/* start conversion */
 		DPRINTK("adv_pci1710 B n=%d ST=%4x\n", n,
 			inw(dev->iobase + PCI171x_STATUS));
-		/* comedi_udelay(1); */
+		/* udelay(1); */
 		DPRINTK("adv_pci1710 C n=%d ST=%4x\n", n,
 			inw(dev->iobase + PCI171x_STATUS));
 		timeout = 100;
@@ -588,14 +588,14 @@ static void interrupt_pci1710_every_sample(void *d)
 	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_every_sample(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (m & Status_FE) {
-		rt_printk("comedi%d: A/D FIFO empty (%4x)\n", dev->minor, m);
+		printk("comedi%d: A/D FIFO empty (%4x)\n", dev->minor, m);
 		pci171x_ai_cancel(dev, s);
 		s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 		comedi_event(dev, s);
 		return;
 	}
 	if (m & Status_FF) {
-		rt_printk
+		printk
 			("comedi%d: A/D FIFO Full status (Fatal Error!) (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
@@ -614,7 +614,7 @@ static void interrupt_pci1710_every_sample(void *d)
 		if (this_board->cardtype != TYPE_PCI1713)
 			if ((sampl & 0xf000) !=
 				devpriv->act_chanlist[s->async->cur_chan]) {
-				rt_printk
+				printk
 					("comedi: A/D data dropout: received data from channel %d, expected %d!\n",
 					(sampl & 0xf000) >> 12,
 					(devpriv->act_chanlist[s->async->
@@ -676,7 +676,7 @@ static int move_block_from_fifo(struct comedi_device *dev, struct comedi_subdevi
 		sampl = inw(dev->iobase + PCI171x_AD_DATA);
 		if (this_board->cardtype != TYPE_PCI1713)
 			if ((sampl & 0xf000) != devpriv->act_chanlist[j]) {
-				rt_printk
+				printk
 					("comedi%d: A/D  FIFO data dropout: received data from channel %d, expected %d! (%d/%d/%d/%d/%d/%4x)\n",
 					dev->minor, (sampl & 0xf000) >> 12,
 					(devpriv->
@@ -716,7 +716,7 @@ static void interrupt_pci1710_half_fifo(void *d)
 	DPRINTK("adv_pci1710 EDBG: BGN: interrupt_pci1710_half_fifo(...)\n");
 	m = inw(dev->iobase + PCI171x_STATUS);
 	if (!(m & Status_FH)) {
-		rt_printk("comedi%d: A/D FIFO not half full! (%4x)\n",
+		printk("comedi%d: A/D FIFO not half full! (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
 		s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
@@ -724,7 +724,7 @@ static void interrupt_pci1710_half_fifo(void *d)
 		return;
 	}
 	if (m & Status_FF) {
-		rt_printk
+		printk
 			("comedi%d: A/D FIFO Full status (Fatal Error!) (%4x)\n",
 			dev->minor, m);
 		pci171x_ai_cancel(dev, s);
@@ -888,13 +888,13 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 */
 static void pci171x_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("adv_pci1710 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("adv_pci1710 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("adv_pci1710 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("adv_pci1710 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("adv_pci1710 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("adv_pci1710 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("adv_pci1710 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n",
+	printk("adv_pci1710 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n",
 		e, cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 #endif
@@ -1122,7 +1122,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 	if (n_chan > 1) {
 		chansegment[0] = chanlist[0];	/*  first channel is everytime ok */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {	/*  build part of chanlist */
-			/*  rt_printk("%d. %d %d\n",i,CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
+			/*  printk("%d. %d %d\n",i,CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
 			if (chanlist[0] == chanlist[i])
 				break;	/*  we detect loop, this must by finish */
 			if (CR_CHAN(chanlist[i]) & 1)	/*  odd channel cann't by differencial */
@@ -1136,7 +1136,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 			if (CR_AREF(chansegment[i - 1]) == AREF_DIFF)
 				nowmustbechan = (nowmustbechan + 1) % s->n_chan;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					i, CR_CHAN(chanlist[i]), nowmustbechan,
 					CR_CHAN(chanlist[0]));
@@ -1146,9 +1146,9 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		}
 
 		for (i = 0, segpos = 0; i < n_chan; i++) {	/*  check whole chanlist */
-			/* rt_printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
+			/* printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(chanlist[i]),CR_RANGE(chanlist[i])); */
 			if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -1331,14 +1331,14 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	int i;
 	int board_index;
 
-	rt_printk("comedi%d: adv_pci1710: ", dev->minor);
+	printk("comedi%d: adv_pci1710: ", dev->minor);
 
 	opt_bus = it->options[0];
 	opt_slot = it->options[1];
 
 	ret = alloc_private(dev, sizeof(struct pci1710_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -1386,10 +1386,10 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -1400,7 +1400,7 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = pcidev->irq;
 	iobase = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx", pci_bus, pci_slot, pci_func,
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx", pci_bus, pci_slot, pci_func,
 		iobase);
 
 	dev->iobase = iobase;
@@ -1422,7 +1422,7 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return ret;
 	}
 
@@ -1430,18 +1430,18 @@ static int pci1710_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (this_board->have_irq) {
 		if (irq) {
-			if (comedi_request_irq(irq, interrupt_service_pci1710,
+			if (request_irq(irq, interrupt_service_pci1710,
 					IRQF_SHARED, "Advantech PCI-1710",
 					dev)) {
-				rt_printk
+				printk
 					(", unable to allocate IRQ %d, DISABLING IT",
 					irq);
 				irq = 0;	/* Can't use IRQ */
 			} else {
-				rt_printk(", irq=%u", irq);
+				printk(", irq=%u", irq);
 			}
 		} else {
-			rt_printk(", IRQ disabled");
+			printk(", IRQ disabled");
 		}
 	} else {
 		irq = 0;
@@ -1551,7 +1551,7 @@ static int pci1710_detach(struct comedi_device *dev)
 		if (devpriv->valid)
 			pci1710_reset(dev);
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		if (devpriv->pcidev) {
 			if (dev->iobase) {
 				comedi_pci_disable(devpriv->pcidev);
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index c617ec39dabe..e1994a5290bd 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -304,7 +304,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	int opt_bus, opt_slot;
 	const char *errstr;
 
-	rt_printk("comedi%d: adv_pci1723: board=%s", dev->minor,
+	printk("comedi%d: adv_pci1723: board=%s", dev->minor,
 		this_board->name);
 
 	opt_bus = it->options[0];
@@ -312,7 +312,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_private(dev, sizeof(struct pci1723_private));
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return -ENOMEM;
 	}
 
@@ -342,10 +342,10 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			rt_printk(" - Card at b:s %d:%d %s\n",
+			printk(" - Card at b:s %d:%d %s\n",
 				opt_bus, opt_slot, errstr);
 		} else {
-			rt_printk(" - Card %s\n", errstr);
+			printk(" - Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -355,7 +355,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	pci_func = PCI_FUNC(pcidev->devfn);
 	iobase = pci_resource_start(pcidev, 2);
 
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
+	printk(", b:s:f=%d:%d:%d, io=0x%4x", pci_bus, pci_slot, pci_func,
 		iobase);
 
 	dev->iobase = iobase;
@@ -372,7 +372,7 @@ static int pci1723_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(" - Allocation failed!\n");
+		printk(" - Allocation failed!\n");
 		return ret;
 	}
 
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 7d66f2ba6b70..5a8c0a3bb2f8 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -40,7 +40,7 @@ Configuration options:
 
 #undef DPRINTK
 #ifdef PCI_DIO_EXTDEBUG
-#define DPRINTK(fmt, args...) rt_printk(fmt, ## args)
+#define DPRINTK(fmt, args...) printk(fmt, ## args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -451,7 +451,7 @@ static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
 				ok = 1;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (ok)
 			return 0;
@@ -896,11 +896,11 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	unsigned long iobase;
 	struct pci_dev *pcidev;
 
-	rt_printk("comedi%d: adv_pci_dio: ", dev->minor);
+	printk("comedi%d: adv_pci_dio: ", dev->minor);
 
 	ret = alloc_private(dev, sizeof(struct pci_dio_private));
 	if (ret < 0) {
-		rt_printk(", Error: Cann't allocate private memory!\n");
+		printk(", Error: Cann't allocate private memory!\n");
 		return -ENOMEM;
 	}
 
@@ -932,18 +932,18 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	}
 
 	if (!dev->board_ptr) {
-		rt_printk
+		printk
 			(", Error: Requested type of the card was not found!\n");
 		return -EIO;
 	}
 
 	if (comedi_pci_enable(pcidev, driver_pci_dio.driver_name)) {
-		rt_printk
+		printk
 			(", Error: Can't enable PCI device and request regions!\n");
 		return -EIO;
 	}
 	iobase = pci_resource_start(pcidev, this_board->main_pci_region);
-	rt_printk(", b:s:f=%d:%d:%d, io=0x%4lx",
+	printk(", b:s:f=%d:%d:%d, io=0x%4lx",
 		pcidev->bus->number, PCI_SLOT(pcidev->devfn),
 		PCI_FUNC(pcidev->devfn), iobase);
 
@@ -968,11 +968,11 @@ static int pci_dio_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	ret = alloc_subdevices(dev, n_subdevices);
 	if (ret < 0) {
-		rt_printk(", Error: Cann't allocate subdevice memory!\n");
+		printk(", Error: Cann't allocate subdevice memory!\n");
 		return ret;
 	}
 
-	rt_printk(".\n");
+	printk(".\n");
 
 	subdev = 0;
 
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index e77d33797494..72283ae81368 100644
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -110,7 +110,7 @@ static int aio_aio12_8_ai_read(struct comedi_device *dev, struct comedi_subdevic
 			!(inb(dev->iobase + AIO12_8_STATUS) & STATUS_ADC_EOC)) {
 			timeout--;
 			printk("timeout %d\n", timeout);
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (timeout == 0) {
 			comedi_error(dev, "ADC timeout");
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index ddf58d4866eb..744680059faf 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -655,12 +655,12 @@ dio200_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	subpriv = s->private;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->active) {
 		event = dio200_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -684,7 +684,7 @@ static int dio200_handle_read_intr(struct comedi_device *dev, struct comedi_subd
 
 	triggered = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	oldevents = s->async->events;
 	if (subpriv->has_int_sce) {
 		/*
@@ -773,7 +773,7 @@ static int dio200_handle_read_intr(struct comedi_device *dev, struct comedi_subd
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (oldevents != s->async->events) {
 		comedi_event(dev, s);
@@ -790,11 +790,11 @@ static int dio200_subdev_intr_cancel(struct comedi_device *dev, struct comedi_su
 	struct dio200_subdev_intr *subpriv = s->private;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	if (subpriv->active) {
 		dio200_stop_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	return 0;
 }
@@ -916,7 +916,7 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev, struct comedi_subde
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->spinlock, flags);
+	spin_lock_irqsave(&subpriv->spinlock, flags);
 	subpriv->active = 1;
 
 	/* Set up end of acquisition. */
@@ -942,7 +942,7 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev, struct comedi_subde
 		event = dio200_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -1398,7 +1398,7 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (irq) {
 		unsigned long flags = share_irq ? IRQF_SHARED : 0;
 
-		if (comedi_request_irq(irq, dio200_interrupt, flags,
+		if (request_irq(irq, dio200_interrupt, flags,
 				DIO200_DRIVER_NAME, dev) >= 0) {
 			dev->irq = irq;
 		} else {
@@ -1444,7 +1444,7 @@ static int dio200_detach(struct comedi_device *dev)
 		DIO200_DRIVER_NAME);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->subdevices) {
 		layout = thislayout;
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index 235cbfffa14b..48d7ccb4a3fe 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -372,7 +372,7 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (irq) {
 		unsigned long flags = share_irq ? IRQF_SHARED : 0;
 
-		if (comedi_request_irq(irq, pc236_interrupt, flags,
+		if (request_irq(irq, pc236_interrupt, flags,
 				PC236_DRIVER_NAME, dev) >= 0) {
 			dev->irq = irq;
 			s->type = COMEDI_SUBD_DI;
@@ -421,7 +421,7 @@ static int pc236_detach(struct comedi_device *dev)
 		pc236_intr_disable(dev);
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->subdevices) {
 		subdev_8255_cleanup(dev, dev->subdevices + 0);
 	}
@@ -471,13 +471,13 @@ static void pc236_intr_disable(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 0;
 #ifdef CONFIG_COMEDI_PCI
 	if (devpriv->lcr_iobase)
 		outl(PCI236_INTR_DISABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 /*
@@ -489,13 +489,13 @@ static void pc236_intr_enable(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->enable_irq = 1;
 #ifdef CONFIG_COMEDI_PCI
 	if (devpriv->lcr_iobase)
 		outl(PCI236_INTR_ENABLE, devpriv->lcr_iobase + PLX9052_INTCSR);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 /*
@@ -510,7 +510,7 @@ static int pc236_intr_check(struct comedi_device *dev)
 	int retval = 0;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (devpriv->enable_irq) {
 		retval = 1;
 #ifdef CONFIG_COMEDI_PCI
@@ -527,7 +527,7 @@ static int pc236_intr_check(struct comedi_device *dev)
 		}
 #endif
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return retval;
 }
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 6b53cb4b93f9..d1a64e80cddb 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -542,7 +542,7 @@ static void pci224_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 		return;
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	/* Kill the interrupts. */
 	devpriv->intsce = 0;
 	outb(0, devpriv->iobase1 + PCI224_INT_SCE);
@@ -558,10 +558,10 @@ static void pci224_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	 * routine.
 	 */
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+	spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	/* Reconfigure DAC for insn_write usage. */
 	outw(0, dev->iobase + PCI224_DACCEN);	/* Disable channels. */
 	devpriv->daccon = COMBINE(devpriv->daccon,
@@ -587,14 +587,14 @@ static void pci224_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 		comedi_event(dev, s);
 	} else {
 		/* Enable interrupts. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		if (cmd->stop_src == TRIG_EXT) {
 			devpriv->intsce = PCI224_INTR_EXT | PCI224_INTR_DAC;
 		} else {
 			devpriv->intsce = PCI224_INTR_DAC;
 		}
 		outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	}
 }
 
@@ -655,7 +655,7 @@ static void pci224_ao_handle_fifo(struct comedi_device *dev, struct comedi_subde
 			/* Nothing left to put in the FIFO. */
 			pci224_ao_stop(dev, s);
 			s->async->events |= COMEDI_CB_OVERFLOW;
-			rt_printk(KERN_ERR "comedi%d: "
+			printk(KERN_ERR "comedi%d: "
 				"AO buffer underrun\n", dev->minor);
 		}
 	}
@@ -1155,16 +1155,16 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	 */
 	switch (cmd->start_src) {
 	case TRIG_INT:
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		s->async->inttrig = &pci224_ao_inttrig_start;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		break;
 	case TRIG_EXT:
 		/* Enable external interrupt trigger to start acquisition. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		devpriv->intsce |= PCI224_INTR_EXT;
 		outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		break;
 	}
 
@@ -1227,14 +1227,14 @@ static irqreturn_t pci224_interrupt(int irq, void *d)
 	intstat = inb(devpriv->iobase1 + PCI224_INT_SCE) & 0x3F;
 	if (intstat) {
 		retval = 1;
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		valid_intstat = devpriv->intsce & intstat;
 		/* Temporarily disable interrupt sources. */
 		curenab = devpriv->intsce & ~intstat;
 		outb(curenab, devpriv->iobase1 + PCI224_INT_SCE);
 		devpriv->intr_running = 1;
 		devpriv->intr_cpuid = THISCPU;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 		if (valid_intstat != 0) {
 			cmd = &s->async->cmd;
 			if (valid_intstat & PCI224_INTR_EXT) {
@@ -1250,13 +1250,13 @@ static irqreturn_t pci224_interrupt(int irq, void *d)
 			}
 		}
 		/* Reenable interrupt sources. */
-		comedi_spin_lock_irqsave(&devpriv->ao_spinlock, flags);
+		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 		if (curenab != devpriv->intsce) {
 			outb(devpriv->intsce,
 				devpriv->iobase1 + PCI224_INT_SCE);
 		}
 		devpriv->intr_running = 0;
-		comedi_spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
+		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
 	}
 	return IRQ_RETVAL(retval);
 }
@@ -1478,8 +1478,8 @@ static int pci224_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = thisboard->name;
 
 	if (irq) {
-		ret = comedi_request_irq(irq, pci224_interrupt, IRQF_SHARED,
-			DRIVER_NAME, dev);
+		ret = request_irq(irq, pci224_interrupt, IRQF_SHARED,
+				  DRIVER_NAME, dev);
 		if (ret < 0) {
 			printk(KERN_ERR "comedi%d: error! "
 				"unable to allocate irq %u\n", dev->minor, irq);
@@ -1515,7 +1515,7 @@ static int pci224_detach(struct comedi_device *dev)
 	printk(KERN_DEBUG "comedi%d: %s: detach\n", dev->minor, DRIVER_NAME);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->subdevices) {
 		struct comedi_subdevice *s;
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 057443551c23..21133f068bf3 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -876,8 +876,8 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		dev->iobase + PCI230_ADCCON);
 
 	/* Register the interrupt handler. */
-	irq_hdl = comedi_request_irq(devpriv->pci_dev->irq, pci230_interrupt,
-		IRQF_SHARED, "amplc_pci230", dev);
+	irq_hdl = request_irq(devpriv->pci_dev->irq, pci230_interrupt,
+			      IRQF_SHARED, "amplc_pci230", dev);
 	if (irq_hdl < 0) {
 		printk("comedi%d: unable to register irq, "
 			"commands will not be available %d\n", dev->minor,
@@ -970,7 +970,7 @@ static int pci230_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->pci_dev) {
@@ -995,7 +995,7 @@ static int get_resources(struct comedi_device *dev, unsigned int res_mask,
 
 	ok = 1;
 	claimed = 0;
-	comedi_spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
 	for (b = 1, i = 0; (i < NUM_RESOURCES)
 		&& (res_mask != 0); b <<= 1, i++) {
 		if ((res_mask & b) != 0) {
@@ -1016,7 +1016,7 @@ static int get_resources(struct comedi_device *dev, unsigned int res_mask,
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
 	return ok;
 }
 
@@ -1033,7 +1033,7 @@ static void put_resources(struct comedi_device *dev, unsigned int res_mask,
 	unsigned int b;
 	unsigned long irqflags;
 
-	comedi_spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
 	for (b = 1, i = 0; (i < NUM_RESOURCES)
 		&& (res_mask != 0); b <<= 1, i++) {
 		if ((res_mask & b) != 0) {
@@ -1043,7 +1043,7 @@ static void put_resources(struct comedi_device *dev, unsigned int res_mask,
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
 }
 
 static inline void put_one_resource(struct comedi_device *dev, unsigned int resource,
@@ -1145,12 +1145,12 @@ static int pci230_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 			status = inw(dev->iobase + PCI230_ADCCON);
 			if (!(status & PCI230_ADC_FIFO_EMPTY))
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("timeout\n");
+			printk("timeout\n");
 			return -ETIMEDOUT;
 		}
 
@@ -1426,12 +1426,12 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
 	if (test_bit(AO_CMD_STARTED, &devpriv->state)) {
 		/* Perform scan. */
 		if (devpriv->hwver < 2) {
 			/* Not using DAC FIFO. */
-			comedi_spin_unlock_irqrestore(&devpriv->
+			spin_unlock_irqrestore(&devpriv->
 				ao_stop_spinlock, irqflags);
 			pci230_handle_ao_nofifo(dev, s);
 			comedi_event(dev, s);
@@ -1439,12 +1439,12 @@ static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
 			/* Using DAC FIFO. */
 			/* Read DACSWTRIG register to trigger conversion. */
 			inw(dev->iobase + PCI230P2_DACSWTRIG);
-			comedi_spin_unlock_irqrestore(&devpriv->
+			spin_unlock_irqrestore(&devpriv->
 				ao_stop_spinlock, irqflags);
 		}
 		/* Delay.  Should driver be responsible for this? */
 		/* XXX TODO: See if DAC busy bit can be used. */
-		comedi_udelay(8);
+		udelay(8);
 	}
 
 	return 1;
@@ -1508,13 +1508,13 @@ static void pci230_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 			if (devpriv->hwver < 2) {
 				/* Not using DAC FIFO. */
 				/* Enable CT1 timer interrupt. */
-				comedi_spin_lock_irqsave(&devpriv->isr_spinlock,
+				spin_lock_irqsave(&devpriv->isr_spinlock,
 					irqflags);
 				devpriv->int_en |= PCI230_INT_ZCLK_CT1;
 				devpriv->ier |= PCI230_INT_ZCLK_CT1;
 				outb(devpriv->ier,
 					devpriv->iobase1 + PCI230_INT_SCE);
-				comedi_spin_unlock_irqrestore(&devpriv->
+				spin_unlock_irqrestore(&devpriv->
 					isr_spinlock, irqflags);
 			}
 			/* Set CT1 gate high to start counting. */
@@ -1527,12 +1527,12 @@ static void pci230_ao_start(struct comedi_device *dev, struct comedi_subdevice *
 		}
 		if (devpriv->hwver >= 2) {
 			/* Using DAC FIFO.  Enable DAC FIFO interrupt. */
-			comedi_spin_lock_irqsave(&devpriv->isr_spinlock,
+			spin_lock_irqsave(&devpriv->isr_spinlock,
 				irqflags);
 			devpriv->int_en |= PCI230P2_INT_DAC;
 			devpriv->ier |= PCI230P2_INT_DAC;
 			outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
-			comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock,
+			spin_unlock_irqrestore(&devpriv->isr_spinlock,
 				irqflags);
 		}
 	}
@@ -2088,7 +2088,7 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev, struct comedi_su
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	if (test_bit(AI_CMD_STARTED, &devpriv->state)) {
 		unsigned int delayus;
 
@@ -2112,11 +2112,11 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev, struct comedi_su
 			/* single-ended or PCI230+/260+ */
 			delayus = 4;
 		}
-		comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
+		spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
 			irqflags);
-		comedi_udelay(delayus);
+		udelay(delayus);
 	} else {
-		comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
+		spin_unlock_irqrestore(&devpriv->ai_stop_spinlock,
 			irqflags);
 	}
 
@@ -2132,7 +2132,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
 	if (trig_num != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	if (test_bit(AI_CMD_STARTED, &devpriv->state)) {
 		/* Trigger scan by waggling CT0 gate source. */
 		zgat = GAT_CONFIG(0, GAT_GND);
@@ -2140,7 +2140,7 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
 		zgat = GAT_CONFIG(0, GAT_VCC);
 		outb(zgat, devpriv->iobase1 + PCI230_ZGAT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
 
 	return 1;
 }
@@ -2160,11 +2160,11 @@ static void pci230_ai_start(struct comedi_device *dev, struct comedi_subdevice *
 		comedi_event(dev, s);
 	} else {
 		/* Enable ADC FIFO trigger level interrupt. */
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 		devpriv->int_en |= PCI230_INT_ADC;
 		devpriv->ier |= PCI230_INT_ADC;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 		/* Update conversion trigger source which is currently set
 		 * to CT2 output, which is currently stuck high. */
@@ -2426,7 +2426,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	 * FIFO reset (above) and the second FIFO reset (below). Setting the
 	 * channel gains and scan list _before_ the first FIFO reset also
 	 * helps, though only slightly. */
-	comedi_udelay(25);
+	udelay(25);
 
 	/* Reset FIFO again. */
 	outw(adccon | PCI230_ADC_FIFO_RESET, dev->iobase + PCI230_ADCCON);
@@ -2575,7 +2575,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 		return IRQ_NONE;
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	valid_status_int = devpriv->int_en & status_int;
 	/* Disable triggered interrupts.
 	 * (Only those interrupts that need re-enabling, are, later in the
@@ -2584,7 +2584,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 	outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	devpriv->intr_running = 1;
 	devpriv->intr_cpuid = THISCPU;
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	/*
 	 * Check the source of interrupt and handle it.
@@ -2613,13 +2613,13 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 	}
 
 	/* Reenable interrupts. */
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
 	devpriv->intr_running = 0;
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	return IRQ_HANDLED;
 }
@@ -2870,9 +2870,9 @@ static void pci230_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	int started;
 	struct comedi_cmd *cmd;
 
-	comedi_spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
 	started = test_and_clear_bit(AO_CMD_STARTED, &devpriv->state);
-	comedi_spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
 	if (!started) {
 		return;
 	}
@@ -2893,17 +2893,17 @@ static void pci230_ao_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	}
 	/* Disable interrupt and wait for interrupt routine to finish running
 	 * unless we are called from the interrupt routine. */
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	devpriv->int_en &= ~intsrc;
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	}
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	if (devpriv->hwver >= 2) {
 		/* Using DAC FIFO.  Reset FIFO, clear underrun error,
@@ -2930,9 +2930,9 @@ static void pci230_ai_stop(struct comedi_device *dev, struct comedi_subdevice *s
 	struct comedi_cmd *cmd;
 	int started;
 
-	comedi_spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
 	started = test_and_clear_bit(AI_CMD_STARTED, &devpriv->state);
-	comedi_spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
 	if (!started) {
 		return;
 	}
@@ -2947,19 +2947,19 @@ static void pci230_ai_stop(struct comedi_device *dev, struct comedi_subdevice *s
 		pci230_cancel_ct(dev, 0);
 	}
 
-	comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	/* Disable ADC interrupt and wait for interrupt routine to finish
 	 * running unless we are called from the interrupt routine. */
 	devpriv->int_en &= ~PCI230_INT_ADC;
 	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		comedi_spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
+		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
 	}
 	if (devpriv->ier != devpriv->int_en) {
 		devpriv->ier = devpriv->int_en;
 		outb(devpriv->ier, devpriv->iobase1 + PCI230_INT_SCE);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
+	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
 	/* Reset FIFO, disable FIFO and set start conversion source to none.
 	 * Keep se/diff and bip/uni settings */
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 516d2ccdaf28..7b064d5df6ff 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -187,8 +187,8 @@ static int das16cs_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	}
 	printk("\n");
 
-	ret = comedi_request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
-		IRQF_SHARED, "cb_das16_cs", dev);
+	ret = request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
+			  IRQF_SHARED, "cb_das16_cs", dev);
 	if (ret < 0) {
 		return ret;
 	}
@@ -270,7 +270,7 @@ static int das16cs_detach(struct comedi_device *dev)
 	printk("comedi%d: das16cs: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	return 0;
@@ -503,7 +503,7 @@ static int das16cs_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 		d = data[i];
 
 		outw(devpriv->status1, dev->iobase + 4);
-		comedi_udelay(1);
+		udelay(1);
 
 		status1 = devpriv->status1 & ~0xf;
 		if (chan)
@@ -513,17 +513,17 @@ static int das16cs_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 
 /* 		printk("0x%04x\n",status1);*/
 		outw(status1, dev->iobase + 4);
-		comedi_udelay(1);
+		udelay(1);
 
 		for (bit = 15; bit >= 0; bit--) {
 			int b = (d >> bit) & 0x1;
 			b <<= 1;
 /*			printk("0x%04x\n",status1 | b | 0x0000);*/
 			outw(status1 | b | 0x0000, dev->iobase + 4);
-			comedi_udelay(1);
+			udelay(1);
 /*			printk("0x%04x\n",status1 | b | 0x0004);*/
 			outw(status1 | b | 0x0004, dev->iobase + 4);
-			comedi_udelay(1);
+			udelay(1);
 		}
 /*		make high both DAC0CS and DAC1CS to load
 		new data and update analog output*/
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 11212b01d493..28212ad6461b 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -588,7 +588,7 @@ static int cb_pcidas_attach(struct comedi_device *dev, struct comedi_devconfig *
 		devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 
 	/*  get irq */
-	if (comedi_request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt,
+	if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt,
 			IRQF_SHARED, "cb_pcidas", dev)) {
 		printk(" unable to allocate irq %d\n", devpriv->pci_dev->irq);
 		return -EINVAL;
@@ -727,14 +727,14 @@ static int cb_pcidas_detach(struct comedi_device *dev)
 			outl(INTCSR_INBOX_INTR_STATUS,
 				devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-			rt_printk("detaching, incsr is 0x%x\n",
+			printk("detaching, incsr is 0x%x\n",
 				inl(devpriv->s5933_config +
 					AMCC_OP_REG_INTCSR));
 #endif
 		}
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 	if (devpriv && devpriv->pci_dev) {
@@ -843,13 +843,13 @@ static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, struct comedi_su
 
 	/*  set channel and range */
 	channel = CR_CHAN(insn->chanspec);
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->ao_control_bits &=
 		~DAC_MODE_UPDATE_BOTH & ~DAC_RANGE_MASK(channel);
 	devpriv->ao_control_bits |=
 		DACEN | DAC_RANGE(channel, CR_RANGE(insn->chanspec));
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  remember value for readback */
 	devpriv->ao_value[channel] = data[0];
@@ -871,7 +871,7 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, struct comedi_subd
 
 	/*  set channel and range */
 	channel = CR_CHAN(insn->chanspec);
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->ao_control_bits &=
 		~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & ~DAC_RANGE_MASK(channel) &
 		~DAC_PACER_MASK;
@@ -879,7 +879,7 @@ static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, struct comedi_subd
 		DACEN | DAC_RANGE(channel,
 		CR_RANGE(insn->chanspec)) | DAC_CHAN_EN(channel) | DAC_START;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  remember value for readback */
 	devpriv->ao_value[channel] = data[0];
@@ -940,13 +940,13 @@ static int dac08_write(struct comedi_device *dev, unsigned int value)
 
 	outw(cal_enable_bits(dev) | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 	outw(cal_enable_bits(dev) | SELECT_DAC08_BIT | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 	outw(cal_enable_bits(dev) | (value & 0xff),
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(1);
+	udelay(1);
 
 	return 1;
 }
@@ -1193,7 +1193,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	outw(bits, devpriv->control_status + ADCMUX_CONT);
 
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to adcmux control\n", bits);
+	printk("comedi: sent 0x%x to adcmux control\n", bits);
 #endif
 
 	/*  load counters */
@@ -1209,7 +1209,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->count = cmd->chanlist_len * cmd->stop_arg;
 	}
 	/*  enable interrupts */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= INTE;
 	devpriv->adc_fifo_bits &= ~INT_MASK;
 	if (cmd->flags & TRIG_WAKE_EOS) {
@@ -1221,12 +1221,12 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->adc_fifo_bits |= INT_FHF;	/* interrupt fifo half full */
 	}
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
 #endif
 	/*  enable (and clear) interrupts */
 	outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL,
 		devpriv->control_status + INT_ADCFIFO);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set start trigger and burst mode */
 	bits = 0;
@@ -1242,7 +1242,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		bits |= BURSTE;
 	outw(bits, devpriv->control_status + TRIG_CONTSTAT);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to trig control\n", bits);
+	printk("comedi: sent 0x%x to trig control\n", bits);
 #endif
 
 	return 0;
@@ -1369,7 +1369,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	unsigned long flags;
 
 	/*  set channel limits, gain */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		/*  enable channel */
 		devpriv->ao_control_bits |=
@@ -1381,7 +1381,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 
 	/*  disable analog out before settings pacer source and count values */
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear fifo */
 	outw(0, devpriv->ao_registers + DACFIFOCLR);
@@ -1403,7 +1403,7 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->ao_count = cmd->chanlist_len * cmd->stop_arg;
 	}
 	/*  set pacer source */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	switch (cmd->scan_begin_src) {
 	case TRIG_TIMER:
 		devpriv->ao_control_bits |= DAC_PACER_INT;
@@ -1412,12 +1412,12 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		devpriv->ao_control_bits |= DAC_PACER_EXT_RISE;
 		break;
 	default:
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		comedi_error(dev, "error setting dac pacer source");
 		return -1;
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	async->inttrig = cb_pcidas_ao_inttrig;
 
@@ -1451,10 +1451,10 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes);
 
 	/*  enable dac half-full and empty interrupts */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= DAEMIE | DAHFIE;
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
 #endif
 	/*  enable and clear interrupts */
 	outw(devpriv->adc_fifo_bits | DAEMI | DAHFI,
@@ -1464,10 +1464,10 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("comedi: sent 0x%x to dac control\n",
+	printk("comedi: sent 0x%x to dac control\n",
 		devpriv->ao_control_bits);
 #endif
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	async->inttrig = NULL;
 
@@ -1494,8 +1494,8 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 
 	s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-	rt_printk("intcsr 0x%x\n", s5933_status);
-	rt_printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
+	printk("intcsr 0x%x\n", s5933_status);
+	printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
 #endif
 
 	if ((INTCSR_INTR_ASSERTED & s5933_status) == 0)
@@ -1537,10 +1537,10 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 			cb_pcidas_cancel(dev, s);
 		}
 		/*  clear half-full interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | INT,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		/*  else if fifo not empty */
 	} else if (status & (ADNEI | EOBI)) {
 		for (i = 0; i < timeout; i++) {
@@ -1556,27 +1556,27 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 			}
 		}
 		/*  clear not-empty interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | INT,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	} else if (status & EOAI) {
 		comedi_error(dev,
 			"bug! encountered end of aquisition interrupt?");
 		/*  clear EOA interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | EOAI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 	/* check for fifo overflow */
 	if (status & LADFUL) {
 		comedi_error(dev, "fifo overflow");
 		/*  clear overflow interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | LADFUL,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		cb_pcidas_cancel(dev, s);
 		async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 	}
@@ -1599,10 +1599,10 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
 
 	if (status & DAEMI) {
 		/*  clear dac empty interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | DAEMI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) {
 			if (cmd->stop_src == TRIG_NONE ||
 				(cmd->stop_src == TRIG_COUNT
@@ -1633,10 +1633,10 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
 		outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer,
 			num_points);
 		/*  clear half-full interrupt latch */
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		outw(devpriv->adc_fifo_bits | DAHFI,
 			devpriv->control_status + INT_ADCFIFO);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 
 	comedi_event(dev, s);
@@ -1647,11 +1647,11 @@ static int cb_pcidas_cancel(struct comedi_device *dev, struct comedi_subdevice *
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  disable interrupts */
 	devpriv->adc_fifo_bits &= ~INTE & ~EOAIE;
 	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  disable start trigger source and burst mode */
 	outw(0, devpriv->control_status + TRIG_CONTSTAT);
@@ -1667,7 +1667,7 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  disable interrupts */
 	devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE;
 	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
@@ -1675,7 +1675,7 @@ static int cb_pcidas_ao_cancel(struct comedi_device *dev,
 	/*  disable output */
 	devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1705,7 +1705,7 @@ static void write_calibration_bitstream(struct comedi_device *dev,
 			register_bits |= SERIAL_DATA_IN_BIT;
 		else
 			register_bits &= ~SERIAL_DATA_IN_BIT;
-		comedi_udelay(write_delay);
+		udelay(write_delay);
 		outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 	}
 }
@@ -1716,7 +1716,7 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 	static const int num_caldac_channels = 8;
 	static const int bitstream_length = 11;
 	unsigned int bitstream = ((address & 0x7) << 8) | value;
-	static const int caldac_8800_comedi_udelay = 1;
+	static const int caldac_8800_udelay = 1;
 
 	if (address >= num_caldac_channels) {
 		comedi_error(dev, "illegal caldac channel");
@@ -1731,10 +1731,10 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 	write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream,
 		bitstream_length);
 
-	comedi_udelay(caldac_8800_comedi_udelay);
+	udelay(caldac_8800_udelay);
 	outw(cal_enable_bits(dev) | SELECT_8800_BIT,
 		devpriv->control_status + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_comedi_udelay);
+	udelay(caldac_8800_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 1;
@@ -1745,16 +1745,16 @@ static int trimpot_7376_write(struct comedi_device *dev, uint8_t value)
 	static const int bitstream_length = 7;
 	unsigned int bitstream = value & 0x7f;
 	unsigned int register_bits;
-	static const int ad7376_comedi_udelay = 1;
+	static const int ad7376_udelay = 1;
 
 	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	comedi_udelay(ad7376_comedi_udelay);
+	udelay(ad7376_udelay);
 	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 
 	write_calibration_bitstream(dev, register_bits, bitstream,
 		bitstream_length);
 
-	comedi_udelay(ad7376_comedi_udelay);
+	udelay(ad7376_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 0;
@@ -1769,16 +1769,16 @@ static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel,
 	static const int bitstream_length = 10;
 	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
 	unsigned int register_bits;
-	static const int ad8402_comedi_udelay = 1;
+	static const int ad8402_udelay = 1;
 
 	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
 
 	write_calibration_bitstream(dev, register_bits, bitstream,
 		bitstream_length);
 
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
 
 	return 0;
@@ -1794,7 +1794,7 @@ static int wait_for_nvram_ready(unsigned long s5933_base_addr)
 					AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY)
 			== 0)
 			return 0;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	return -1;
 }
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index caa8b568871d..210b462868b7 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -98,7 +98,7 @@ TODO:
 /* #define PCIDAS64_DEBUG         enable debugging code */
 
 #ifdef PCIDAS64_DEBUG
-#define DEBUG_PRINT(format, args...)  rt_printk(format , ## args)
+#define DEBUG_PRINT(format, args...)  printk(format , ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -1535,7 +1535,7 @@ static void init_stc_registers(struct comedi_device *dev)
 	uint16_t bits;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/*  bit should be set for 6025, although docs say boards with <= 16 chans should be cleared XXX */
 	if (1)
@@ -1556,7 +1556,7 @@ static void init_stc_registers(struct comedi_device *dev)
 	writew(0, priv(dev)->main_iobase + DAQ_SYNC_REG);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set fifos to maximum size */
 	priv(dev)->fifo_size_bits |= DAC_FIFO_BITS;
@@ -1794,7 +1794,7 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	init_plx9080(dev);
 	init_stc_registers(dev);
 	/*  get irq */
-	if (comedi_request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
+	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
 			"cb_pcidas64", dev)) {
 		printk(" unable to allocate irq %u\n", pcidev->irq);
 		return -EINVAL;
@@ -1825,7 +1825,7 @@ static int detach(struct comedi_device *dev)
 	printk("comedi%d: cb_pcidas: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (priv(dev)) {
 		if (priv(dev)->hw_dev) {
 			if (priv(dev)->plx9080_iobase) {
@@ -1895,14 +1895,14 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  4020 generates dac done interrupts even though they are disabled */
 	disable_ai_pacing(dev);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (insn->chanspec & CR_ALT_FILTER)
 		priv(dev)->adc_control1_bits |= ADC_DITHER_BIT;
 	else
 		priv(dev)->adc_control1_bits &= ~ADC_DITHER_BIT;
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (board(dev)->layout != LAYOUT_4020) {
 		/*  use internal queue */
@@ -1995,12 +1995,12 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				if (pipe_full_bits(bits))
 					break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		DEBUG_PRINT(" looped %i times waiting for data\n", i);
 		if (i == timeout) {
 			comedi_error(dev, " analog input read insn timed out");
-			rt_printk(" status 0x%x\n", bits);
+			printk(" status 0x%x\n", bits);
 			return -ETIME;
 		}
 		if (board(dev)->layout == LAYOUT_4020)
@@ -2357,11 +2357,11 @@ static void disable_ai_pacing(struct comedi_device *dev)
 
 	disable_ai_interrupts(dev);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->adc_control1_bits &= ~ADC_SW_GATE_BIT;
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/* disable pacing, triggering, etc */
 	writew(ADC_DMA_DISABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT,
@@ -2372,14 +2372,14 @@ static void disable_ai_interrupts(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->intr_enable_bits &=
 		~EN_ADC_INTR_SRC_BIT & ~EN_ADC_DONE_INTR_BIT &
 		~EN_ADC_ACTIVE_INTR_BIT & ~EN_ADC_STOP_INTR_BIT &
 		~EN_ADC_OVERRUN_BIT & ~ADC_INTR_SRC_MASK;
 	writew(priv(dev)->intr_enable_bits,
 		priv(dev)->main_iobase + INTR_ENABLE_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	DEBUG_PRINT("intr enable bits 0x%x\n", priv(dev)->intr_enable_bits);
 }
@@ -2397,12 +2397,12 @@ static void enable_ai_interrupts(struct comedi_device *dev, const struct comedi_
 		if (board(dev)->layout != LAYOUT_4020)
 			bits |= ADC_INTR_EOSCAN_BITS | EN_ADC_INTR_SRC_BIT;
 	}
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	priv(dev)->intr_enable_bits |= bits;
 	writew(priv(dev)->intr_enable_bits,
 		priv(dev)->main_iobase + INTR_ENABLE_REG);
 	DEBUG_PRINT("intr enable bits 0x%x\n", priv(dev)->intr_enable_bits);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static uint32_t ai_convert_counter_6xxx(const struct comedi_device *dev,
@@ -2488,7 +2488,7 @@ static inline void dma_start_sync(struct comedi_device *dev, unsigned int channe
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (channel)
 		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
 			PLX_CLEAR_DMA_INTR_BIT,
@@ -2497,7 +2497,7 @@ static inline void dma_start_sync(struct comedi_device *dev, unsigned int channe
 		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
 			PLX_CLEAR_DMA_INTR_BIT,
 			priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static void set_ai_pacing(struct comedi_device *dev, struct comedi_cmd *cmd)
@@ -2701,7 +2701,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	enable_ai_interrupts(dev, cmd);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/* set mode, allow conversions through software gate */
 	priv(dev)->adc_control1_bits |= ADC_SW_GATE_BIT;
 	priv(dev)->adc_control1_bits &= ~ADC_DITHER_BIT;
@@ -2728,7 +2728,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	writew(priv(dev)->adc_control1_bits,
 		priv(dev)->main_iobase + ADC_CONTROL1_REG);
 	DEBUG_PRINT("control1 bits 0x%x\n", priv(dev)->adc_control1_bits);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear adc buffer */
 	writew(0, priv(dev)->main_iobase + ADC_BUFFER_CLEAR_REG);
@@ -2762,7 +2762,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		writew(bits, priv(dev)->main_iobase + DAQ_ATRIG_LOW_4020_REG);
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* enable pacing, triggering, etc */
 	bits = ADC_ENABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT;
@@ -2782,7 +2782,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	priv(dev)->ai_cmd_running = 1;
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  start aquisition */
 	if (cmd->start_src == TRIG_NOW) {
@@ -2842,7 +2842,7 @@ static void pio_drain_ai_fifo_16(struct comedi_device *dev)
 		}
 
 		if (num_samples < 0) {
-			rt_printk(" cb_pcidas64: bug! num_samples < 0\n");
+			printk(" cb_pcidas64: bug! num_samples < 0\n");
 			break;
 		}
 
@@ -2964,7 +2964,7 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 		async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 	}
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A) {	/*  dma chan 1 interrupt */
 		writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
@@ -2976,7 +2976,7 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		DEBUG_PRINT(" cleared dma ch1 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (status & ADC_DONE_BIT)
 		DEBUG_PRINT("adc done interrupt\n");
@@ -2987,12 +2987,12 @@ void handle_ai_interrupt(struct comedi_device *dev, unsigned short status,
 			(status & ADC_INTR_PENDING_BIT) &&
 			(board(dev)->layout != LAYOUT_4020))) {
 		DEBUG_PRINT("pio fifo drain\n");
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 		if (priv(dev)->ai_cmd_running) {
-			comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+			spin_unlock_irqrestore(&dev->spinlock, flags);
 			pio_drain_ai_fifo(dev);
 		} else
-			comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+			spin_unlock_irqrestore(&dev->spinlock, flags);
 	}
 	/*  if we are have all the data, then quit */
 	if ((cmd->stop_src == TRIG_COUNT && priv(dev)->ai_count <= 0) ||
@@ -3087,7 +3087,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 	cmd = &async->cmd;
 
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
 		if ((dma0_status & PLX_DMA_EN_BIT)
@@ -3097,7 +3097,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 		else
 			writeb(PLX_CLEAR_DMA_INTR_BIT,
 				priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		DEBUG_PRINT("dma0 status 0x%x\n", dma0_status);
 		if (dma0_status & PLX_DMA_EN_BIT) {
 			load_ao_dma(dev, cmd);
@@ -3107,7 +3107,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned short status
 		}
 		DEBUG_PRINT(" cleared dma ch0 interrupt\n");
 	} else
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if ((status & DAC_DONE_BIT)) {
 		async->events |= COMEDI_CB_EOA;
@@ -3164,24 +3164,24 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	plx9080_abort_dma(priv(dev)->plx9080_iobase, channel);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	if (priv(dev)->ai_cmd_running == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 	priv(dev)->ai_cmd_running = 0;
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	disable_ai_pacing(dev);
 
@@ -3722,12 +3722,12 @@ static void ad8402_write(struct comedi_device *dev, unsigned int channel,
 	static const int bitstream_length = 10;
 	unsigned int bit, register_bits;
 	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
-	static const int ad8402_comedi_udelay = 1;
+	static const int ad8402_udelay = 1;
 
 	priv(dev)->ad8402_state[channel] = value;
 
 	register_bits = SELECT_8402_64XX_BIT;
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 
 	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
@@ -3735,14 +3735,14 @@ static void ad8402_write(struct comedi_device *dev, unsigned int channel,
 			register_bits |= SERIAL_DATA_IN_BIT;
 		else
 			register_bits &= ~SERIAL_DATA_IN_BIT;
-		comedi_udelay(ad8402_comedi_udelay);
+		udelay(ad8402_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
-		comedi_udelay(ad8402_comedi_udelay);
+		udelay(ad8402_udelay);
 		writew(register_bits | SERIAL_CLOCK_BIT,
 			priv(dev)->main_iobase + CALIBRATION_REG);
 	}
 
-	comedi_udelay(ad8402_comedi_udelay);
+	udelay(ad8402_udelay);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
 }
 
@@ -3784,32 +3784,32 @@ static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address)
 		priv(dev)->plx9080_iobase + PLX_CONTROL_REG;
 	uint16_t value;
 	static const int value_length = 16;
-	static const int eeprom_comedi_udelay = 1;
+	static const int eeprom_udelay = 1;
 
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits &= ~CTL_EE_CLK & ~CTL_EE_CS;
 	/*  make sure we don't send anything to the i2c bus on 4020 */
 	priv(dev)->plx_control_bits |= CTL_USERO;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 	/*  activate serial eeprom */
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits |= CTL_EE_CS;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 
 	/*  write read command and desired memory address */
 	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
 		/*  set bit to be written */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		if (bitstream & bit)
 			priv(dev)->plx_control_bits |= CTL_EE_W;
 		else
 			priv(dev)->plx_control_bits &= ~CTL_EE_W;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
 		/*  clock in bit */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits |= CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits &= ~CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
 	}
@@ -3817,19 +3817,19 @@ static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address)
 	value = 0;
 	for (bit = 1 << (value_length - 1); bit; bit >>= 1) {
 		/*  clock out bit */
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits |= CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		priv(dev)->plx_control_bits &= ~CTL_EE_CLK;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(eeprom_comedi_udelay);
+		udelay(eeprom_udelay);
 		if (readl(plx_control_addr) & CTL_EE_R)
 			value |= bit;
 	}
 
 	/*  deactivate eeprom serial input */
-	comedi_udelay(eeprom_comedi_udelay);
+	udelay(eeprom_udelay);
 	priv(dev)->plx_control_bits &= ~CTL_EE_CS;
 	writel(priv(dev)->plx_control_bits, plx_control_addr);
 
@@ -4018,17 +4018,17 @@ static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
 		register_bits = 0;
 		if (bitstream & bit)
 			register_bits |= SERIAL_DATA_IN_BIT;
-		comedi_udelay(caldac_8800_udelay);
+		udelay(caldac_8800_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 		register_bits |= SERIAL_CLOCK_BIT;
-		comedi_udelay(caldac_8800_udelay);
+		udelay(caldac_8800_udelay);
 		writew(register_bits, priv(dev)->main_iobase + CALIBRATION_REG);
 	}
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	writew(SELECT_8800_BIT, priv(dev)->main_iobase + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	writew(0, priv(dev)->main_iobase + CALIBRATION_REG);
-	comedi_udelay(caldac_8800_udelay);
+	udelay(caldac_8800_udelay);
 	return 0;
 }
 
@@ -4094,8 +4094,8 @@ static int caldac_i2c_write(struct comedi_device *dev, unsigned int caldac_chann
 }
 
 /* Their i2c requires a huge delay on setting clock or data high for some reason */
-static const int i2c_high_comedi_udelay = 1000;
-static const int i2c_low_comedi_udelay = 10;
+static const int i2c_high_udelay = 1000;
+static const int i2c_low_udelay = 10;
 
 /* set i2c data line high or low */
 static void i2c_set_sda(struct comedi_device *dev, int state)
@@ -4107,12 +4107,12 @@ static void i2c_set_sda(struct comedi_device *dev, int state)
 		/*  set data line high */
 		priv(dev)->plx_control_bits &= ~data_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_high_comedi_udelay);
+		udelay(i2c_high_udelay);
 	} else			/*  set data line low */
 	{
 		priv(dev)->plx_control_bits |= data_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_low_comedi_udelay);
+		udelay(i2c_low_udelay);
 	}
 }
 
@@ -4126,12 +4126,12 @@ static void i2c_set_scl(struct comedi_device *dev, int state)
 		/*  set clock line high */
 		priv(dev)->plx_control_bits &= ~clock_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_high_comedi_udelay);
+		udelay(i2c_high_udelay);
 	} else			/*  set clock line low */
 	{
 		priv(dev)->plx_control_bits |= clock_bit;
 		writel(priv(dev)->plx_control_bits, plx_control_addr);
-		comedi_udelay(i2c_low_comedi_udelay);
+		udelay(i2c_low_udelay);
 	}
 }
 
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index 13f793b76c61..c69ec5d51e76 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -282,7 +282,7 @@ static int cb_pcimdas_attach(struct comedi_device *dev, struct comedi_devconfig
 
 /* Dont support IRQ yet */
 /*  get irq */
-/* if(comedi_request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
+/* if(request_irq(devpriv->pci_dev->irq, cb_pcimdas_interrupt, IRQF_SHARED, "cb_pcimdas", dev )) */
 /* { */
 /* printk(" unable to allocate irq %u\n", devpriv->pci_dev->irq); */
 /* return -EINVAL; */
@@ -355,7 +355,7 @@ static int cb_pcimdas_detach(struct comedi_device *dev)
 #endif
 	printk("comedi%d: cb_pcimdas: remove\n", dev->minor);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
 			if (devpriv->BADR0) {
diff --git a/drivers/staging/comedi/drivers/comedi_fc.c b/drivers/staging/comedi/drivers/comedi_fc.c
index 9fa4cdc84d44..8ab8e733afb6 100644
--- a/drivers/staging/comedi/drivers/comedi_fc.c
+++ b/drivers/staging/comedi/drivers/comedi_fc.c
@@ -53,7 +53,7 @@ unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *subd, void *data
 
 	retval = comedi_buf_write_alloc(async, num_bytes);
 	if (retval != num_bytes) {
-		rt_printk("comedi: buffer overrun\n");
+		printk("comedi: buffer overrun\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return 0;
 	}
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 3848fd475583..f42897de640e 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -310,8 +310,8 @@ static int parport_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = it->options[1];
 	if (irq) {
 		printk(" irq=%u", irq);
-		ret = comedi_request_irq(irq, parport_interrupt, 0,
-			"comedi_parport", dev);
+		ret = request_irq(irq, parport_interrupt, 0, "comedi_parport",
+				  dev);
 		if (ret < 0) {
 			printk(" irq not available\n");
 			return -EINVAL;
@@ -385,7 +385,7 @@ static int parport_detach(struct comedi_device *dev)
 		release_region(dev->iobase, PARPORT_SIZE);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/comedi_rt_timer.c b/drivers/staging/comedi/drivers/comedi_rt_timer.c
index 3b21f4c85879..0453a983571c 100644
--- a/drivers/staging/comedi/drivers/comedi_rt_timer.c
+++ b/drivers/staging/comedi/drivers/comedi_rt_timer.c
@@ -204,7 +204,7 @@ inline static int check_scan_timing(struct comedi_device *dev,
 	timing_error = now - (devpriv->start + scan * devpriv->scan_period);
 	if (timing_error > devpriv->scan_period) {
 		comedi_error(dev, "timing error");
-		rt_printk("scan started %i ns late\n", timing_error * 838);
+		printk("scan started %i ns late\n", timing_error * 838);
 		return -1;
 	}
 
@@ -222,7 +222,7 @@ inline static int check_conversion_timing(struct comedi_device *dev,
 		now - (scan_start + conversion * devpriv->convert_period);
 	if (timing_error > devpriv->convert_period) {
 		comedi_error(dev, "timing error");
-		rt_printk("conversion started %i ns late\n",
+		printk("conversion started %i ns late\n",
 			timing_error * 838);
 		return -1;
 	}
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index f2ad24841296..6c58e9990323 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -205,7 +205,7 @@ static int contec_do_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 	if (data[0]) {
 		s->state &= ~data[0];
 		s->state |= data[0] & data[1];
-		rt_printk("  out: %d on %lx\n", s->state,
+		printk("  out: %d on %lx\n", s->state,
 			dev->iobase + thisboard->out_offs);
 		outw(s->state, dev->iobase + thisboard->out_offs);
 	}
@@ -216,8 +216,8 @@ static int contec_di_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 	struct comedi_insn *insn, unsigned int *data)
 {
 
-	rt_printk("contec_di_insn_bits called\n");
-	rt_printk(" data: %d %d\n", data[0], data[1]);
+	printk("contec_di_insn_bits called\n");
+	printk(" data: %d %d\n", data[0], data[1]);
 
 	if (insn->n != 2)
 		return -EINVAL;
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index bac642c55cd5..ff0ca2c51ce6 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -342,9 +342,9 @@ static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
 {
 	struct daqboard2000_hw *fpga = devpriv->daq;
 
-/* comedi_udelay(4); */
+/* udelay(4); */
 	fpga->acqScanListFIFO = entry & 0x00ff;
-/* comedi_udelay(4); */
+/* udelay(4); */
 	fpga->acqScanListFIFO = (entry >> 8) & 0x00ff;
 }
 
@@ -425,14 +425,14 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev, struct comedi_su
 			if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		fpga->acqControl = DAQBOARD2000_AdcPacerEnable;
 		for (timeout = 0; timeout < 20; timeout++) {
 			if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		for (timeout = 0; timeout < 20; timeout++) {
 			if (fpga->
@@ -440,7 +440,7 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev, struct comedi_su
 				DAQBOARD2000_AcqResultsFIFOHasValidData) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		data[i] = fpga->acqResultsFIFO;
 		fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
@@ -476,18 +476,18 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev, struct comedi_s
 		 * OK, since it works OK without enabling the DAC's, let's keep
 		 * it as simple as possible...
 		 */
-		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; comedi_udelay(1000); */
+		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; udelay(1000); */
 		fpga->dacSetting[chan] = data[i];
 		for (timeout = 0; timeout < 20; timeout++) {
 			if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0) {
 				break;
 			}
-			/* comedi_udelay(2); */
+			/* udelay(2); */
 		}
 		devpriv->ao_readback[chan] = data[i];
 		/*
 		 * Since we never enabled the DAC's, we don't need to disable it...
-		 * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; comedi_udelay(1000);
+		 * fpga->dacControl = (chan + 2) * 0x0010 | 0x0000; udelay(1000);
 		 */
 	}
 
@@ -498,29 +498,29 @@ static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 {
 	printk("daqboard2000_resetLocalBus\n");
 	writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 }
 
 static void daqboard2000_reloadPLX(struct comedi_device *dev)
 {
 	printk("daqboard2000_reloadPLX\n");
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 }
 
 static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 {
 	printk("daqboard2000_pulseProgPin 1\n");
 	writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
-	comedi_udelay(10000);
+	udelay(10000);
 	writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
-	comedi_udelay(10000);	/* Not in the original code, but I like symmetry... */
+	udelay(10000);	/* Not in the original code, but I like symmetry... */
 }
 
 static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
@@ -536,9 +536,9 @@ static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
 			result = 1;
 			break;
 		}
-		comedi_udelay(100);
+		udelay(100);
 	}
-	comedi_udelay(5);
+	udelay(5);
 	return result;
 }
 
@@ -546,7 +546,7 @@ static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
 {
 	int result = 0;
 
-	comedi_udelay(10);
+	udelay(10);
 	writew(data, devpriv->daq + 0x1000);
 	if ((readw(devpriv->daq + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
 		DAQBOARD2000_CPLD_INIT) {
@@ -623,17 +623,17 @@ static void daqboard2000_adcDisarm(struct comedi_device *dev)
 	struct daqboard2000_hw *fpga = devpriv->daq;
 
 	/* Disable hardware triggers */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->trigControl = DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable;
-	comedi_udelay(2);
+	udelay(2);
 	fpga->trigControl = DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable;
 
 	/* Stop the scan list FIFO from loading the configuration pipe */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->acqControl = DAQBOARD2000_SeqStopScanList;
 
 	/* Stop the pacer clock */
-	comedi_udelay(2);
+	udelay(2);
 	fpga->acqControl = DAQBOARD2000_AdcPacerDisable;
 
 	/* Stop the input dma (abort channel 1) */
@@ -651,7 +651,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
 			break;
 		}
-		comedi_udelay(2);
+		udelay(2);
 	}
 /*  printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/
 
@@ -661,7 +661,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
 			break;
 		}
-		comedi_udelay(2);
+		udelay(2);
 	}
 /*  printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/
 }
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 2fa883edfef0..c20cd8feb13d 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -545,7 +545,7 @@ static int das08_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		/* clear over-range bits for 16-bit boards */
 		if (thisboard->ai_nbits == 16)
 			if (inb(dev->iobase + DAS08_MSB) & 0x80)
-				rt_printk("das08: over-range\n");
+				printk("das08: over-range\n");
 
 		/* trigger conversion */
 		outb_p(0, dev->iobase + DAS08_TRIG_12BIT);
@@ -555,7 +555,7 @@ static int das08_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == TIMEOUT) {
-			rt_printk("das08: timeout\n");
+			printk("das08: timeout\n");
 			return -ETIME;
 		}
 		msb = inb(dev->iobase + DAS08_MSB);
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 6ca888429e6a..c0fbb8516730 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -90,7 +90,7 @@ Computer boards manuals also available from their website www.measurementcomputi
 /* #define DEBUG */
 
 #ifdef DEBUG
-#define DEBUG_PRINT(format, args...) rt_printk("das16: " format, ## args)
+#define DEBUG_PRINT(format, args...) printk("das16: " format, ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -998,7 +998,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/* disable interrupts, dma and pacer clocked conversions */
 	devpriv->control_state &= ~DAS16_INTE & ~PACING_MASK & ~DMA_ENABLE;
 	outb(devpriv->control_state, dev->iobase + DAS16_CONTROL);
@@ -1016,7 +1016,7 @@ static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 		outb(0, dev->iobase + DAS1600_BURST);
 	}
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1062,7 +1062,7 @@ static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == DAS16_TIMEOUT) {
-			rt_printk("das16: timeout\n");
+			printk("das16: timeout\n");
 			return -ETIME;
 		}
 		msb = inb(dev->iobase + DAS16_AI_MSB);
@@ -1180,7 +1180,7 @@ static int disable_dma_on_even(struct comedi_device *dev)
 		enable_dma(devpriv->dma_chan);
 		for (j = 0; j < enable_timeout; ++j) {
 			int new_residue;
-			comedi_udelay(2);
+			udelay(2);
 			new_residue = get_dma_residue(devpriv->dma_chan);
 			if (new_residue != residue)
 				break;
@@ -1217,9 +1217,9 @@ static void das16_interrupt(struct comedi_device *dev)
 		return;
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, spin_flags);
+	spin_lock_irqsave(&dev->spinlock, spin_flags);
 	if ((devpriv->control_state & DMA_ENABLE) == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, spin_flags);
+		spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 		DEBUG_PRINT("interrupt while dma disabled?\n");
 		return;
 	}
@@ -1263,7 +1263,7 @@ static void das16_interrupt(struct comedi_device *dev)
 	}
 	release_dma_lock(dma_flags);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, spin_flags);
+	spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 
 	cfc_write_array_to_buffer(s,
 		devpriv->dma_buffer[buffer_index], num_bytes);
@@ -1449,8 +1449,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* now for the irq */
 	if (irq > 1 && irq < 8) {
-		ret = comedi_request_irq(irq, das16_dma_interrupt, 0,
-					 "das16", dev);
+		ret = request_irq(irq, das16_dma_interrupt, 0, "das16", dev);
 
 		if (ret < 0)
 			return ret;
@@ -1658,7 +1657,7 @@ static int das16_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase) {
 		if (thisboard->size < 0x400) {
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index e22f546e8162..a0e405fc4c67 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -466,10 +466,10 @@ static int das16m1_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned int status;
 
 	/*  prevent race with interrupt handler */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	status = inb(dev->iobase + DAS16M1_CS);
 	das16m1_handler(dev, status);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -669,8 +669,8 @@ static int das16m1_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	irq = it->options[1];
 	/*  make sure it is valid */
 	if (das16m1_irq_bits(irq) >= 0) {
-		ret = comedi_request_irq(irq, das16m1_interrupt, 0,
-			driver_das16m1.driver_name, dev);
+		ret = request_irq(irq, das16m1_interrupt, 0,
+				  driver_das16m1.driver_name, dev);
 		if (ret < 0) {
 			printk(", irq unavailable\n");
 			return ret;
@@ -753,7 +753,7 @@ static int das16m1_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 3);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase) {
 		release_region(dev->iobase, DAS16M1_SIZE);
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 7fbcfb107e6d..5d67d2359add 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -651,7 +651,7 @@ static int das1800_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	/* grab our IRQ */
 	if (irq) {
-		if (comedi_request_irq(irq, das1800_interrupt, 0,
+		if (request_irq(irq, das1800_interrupt, 0,
 				driver_das1800.driver_name, dev)) {
 			printk(" unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -771,7 +771,7 @@ static int das1800_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, DAS1800_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->private) {
 		if (devpriv->iobase2)
 			release_region(devpriv->iobase2, DAS1800_SIZE);
@@ -872,9 +872,9 @@ static int das1800_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s
 	unsigned long flags;
 
 	/*  prevent race with interrupt handler */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	das1800_ai_handler(dev);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -1471,7 +1471,7 @@ static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
 
 	n = cmd.chanlist_len;
 	/*  spinlock protects indirect addressing */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
 	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*set QRAM address start */
 	/* make channel / gain list */
@@ -1483,7 +1483,7 @@ static void program_chanlist(struct comedi_device *dev, struct comedi_cmd cmd)
 		outw(chan_range, dev->iobase + DAS1800_QRAM);
 	}
 	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*finish write to QRAM */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return;
 }
@@ -1582,7 +1582,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *
 	/* mask of unipolar/bipolar bit from range */
 	range = CR_RANGE(insn->chanspec) & 0x3;
 	chan_range = chan | (range << 8);
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
 	outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS);	/* set QRAM address start */
 	outw(chan_range, dev->iobase + DAS1800_QRAM);
@@ -1606,7 +1606,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *
 			dpnt += 1 << (thisboard->resolution - 1);
 		data[n] = dpnt;
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return n;
 }
@@ -1627,7 +1627,7 @@ static int das1800_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 	if (chan == update_chan)
 		devpriv->ao_update_bits = output;
 	/*  write to channel */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(DAC(chan), dev->iobase + DAS1800_SELECT);	/* select dac channel for baseAddress + 0x0 */
 	outw(output, dev->iobase + DAS1800_DAC);
 	/*  now we need to write to 'update' channel to update all dac channels */
@@ -1635,7 +1635,7 @@ static int das1800_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *
 		outb(DAC(update_chan), dev->iobase + DAS1800_SELECT);	/* select 'update' channel for baseAddress + 0x0 */
 		outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC);
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return 1;
 }
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index 950f07a56f4e..37611ef80f5f 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -292,7 +292,7 @@ static int board_init(struct comedi_device *dev)
 static int das6402_detach(struct comedi_device *dev)
 {
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, DAS6402_SIZE);
 
@@ -324,7 +324,7 @@ static int das6402_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	irq = it->options[0];
 	printk(" ( irq = %u )", irq);
-	ret = comedi_request_irq(irq, intr_handler, 0, "das6402", dev);
+	ret = request_irq(irq, intr_handler, 0, "das6402", dev);
 	if (ret < 0) {
 		printk("irq conflict\n");
 		return ret;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 6ee9648e5e18..ef64a20d836b 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -279,10 +279,10 @@ static int das800_probe(struct comedi_device *dev)
 	int board;
 
 	/*  'comedi spin lock irqsave' disables even rt interrupts, we use them to protect indirect addressing */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(ID, dev->iobase + DAS800_GAIN);	/* select base address + 7 to be ID register */
 	id_bits = inb(dev->iobase + DAS800_ID) & 0x3;	/* get id bits */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	board = thisboard - das800_boards;
 
@@ -370,12 +370,12 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 	async = s->async;
 
 	/*  if hardware conversions are not enabled, then quit */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select base address + 7 to be STATUS2 register */
 	status = inb(dev->iobase + DAS800_STATUS2) & STATUS2_HCEN;
 	/* don't release spinlock yet since we want to make sure noone else disables hardware conversions */
 	if (status == 0) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		return IRQ_HANDLED;
 	}
 
@@ -415,7 +415,7 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 		fifo_overflow = inb(dev->iobase + DAS800_GAIN) & CIO_FFOV;
 	}
 	if (fifo_overflow) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		comedi_error(dev, "DAS800 FIFO overflow");
 		das800_cancel(dev, dev->subdevices + 0);
 		async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
@@ -429,10 +429,10 @@ static irqreturn_t das800_interrupt(int irq, void *d)
 		outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 		outb(CONTROL1_INTE | devpriv->do_bits,
 			dev->iobase + DAS800_CONTROL1);
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		/* otherwise, stop taking data */
 	} else {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 		disable_das800(dev);	/* diable hardware triggered conversions */
 		async->events |= COMEDI_CB_EOA;
 	}
@@ -484,7 +484,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EINVAL;
 	}
 	if (irq) {
-		if (comedi_request_irq(irq, das800_interrupt, 0, "das800", dev)) {
+		if (request_irq(irq, das800_interrupt, 0, "das800", dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
 		}
@@ -531,10 +531,10 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	disable_das800(dev);
 
 	/* initialize digital out channels */
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	return 0;
 };
@@ -547,7 +547,7 @@ static int das800_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, DAS800_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	return 0;
 };
 
@@ -563,7 +563,7 @@ static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 static void enable_das800(struct comedi_device *dev)
 {
 	unsigned long irq_flags;
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	/*  enable fifo-half full interrupts for cio-das802/16 */
 	if (thisboard->resolution == 16)
 		outb(CIO_ENHF, dev->iobase + DAS800_GAIN);
@@ -571,17 +571,17 @@ static void enable_das800(struct comedi_device *dev)
 	outb(CONV_HCEN, dev->iobase + DAS800_CONV_CONTROL);	/* enable hardware triggering */
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(CONTROL1_INTE | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);	/* enable card's interrupt */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 }
 
 /* disable_das800 stops hardware triggered conversions */
 static void disable_das800(struct comedi_device *dev)
 {
 	unsigned long irq_flags;
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONV_CONTROL, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be conversion control register */
 	outb(0x0, dev->iobase + DAS800_CONV_CONTROL);	/* disable hardware triggering of conversions */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 }
 
 static int das800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -729,10 +729,10 @@ static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *
 	endChan = (startChan + async->cmd.chanlist_len - 1) % 8;
 	scan = (endChan << 3) | startChan;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(SCAN_LIMITS, dev->iobase + DAS800_GAIN);	/* select base address + 2 to be scan limits register */
 	outb(scan, dev->iobase + DAS800_SCAN_LIMITS);	/* set scan limits */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	/* set gain */
 	gain = CR_RANGE(async->cmd.chanlist[0]);
@@ -779,10 +779,10 @@ static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *
 		break;
 	}
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONV_CONTROL, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be conversion control register */
 	outb(conv_bits, dev->iobase + DAS800_CONV_CONTROL);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 	async->events = 0;
 	enable_das800(dev);
 	return 0;
@@ -803,10 +803,10 @@ static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 	/* set multiplexer */
 	chan = CR_CHAN(insn->chanspec);
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(chan | devpriv->do_bits, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	/* set gain / range */
 	range = CR_RANGE(insn->chanspec);
@@ -815,7 +815,7 @@ static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 	range &= 0xf;
 	outb(range, dev->iobase + DAS800_GAIN);
 
-	comedi_udelay(5);
+	udelay(5);
 
 	for (n = 0; n < insn->n; n++) {
 		/* trigger conversion */
@@ -868,10 +868,10 @@ static int das800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s
 	wbits |= data[0] & data[1];
 	devpriv->do_bits = wbits << 4;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+	spin_lock_irqsave(&dev->spinlock, irq_flags);
 	outb(CONTROL1, dev->iobase + DAS800_GAIN);	/* select dev->iobase + 2 to be control register 1 */
 	outb(devpriv->do_bits | CONTROL1_INTE, dev->iobase + DAS800_CONTROL1);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 
 	data[1] = wbits;
 
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 47b3ebc34a68..5a53c61ddbdf 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -380,8 +380,7 @@ static int dmm32at_attach(struct comedi_device *dev, struct comedi_devconfig *it
 
 	/* board is there, register interrupt */
 	if (irq) {
-		ret = comedi_request_irq(irq, dmm32at_isr, 0, thisboard->name,
-			dev);
+		ret = request_irq(irq, dmm32at_isr, 0, thisboard->name, dev);
 		if (ret < 0) {
 			printk("irq conflict\n");
 			return ret;
@@ -485,7 +484,7 @@ static int dmm32at_detach(struct comedi_device *dev)
 {
 	printk("comedi%d: dmm32at: remove\n", dev->minor);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, DMM32AT_MEMSIZE);
 
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 9b100405b8b7..25a9b213b6f1 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -384,7 +384,7 @@ static int dt2801_reset(struct comedi_device *dev)
 	outb_p(DT_C_STOP, dev->iobase + DT2801_CMD);
 
 	/* dt2801_wait_for_ready(dev); */
-	comedi_udelay(100);
+	udelay(100);
 	timeout = 10000;
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
@@ -402,7 +402,7 @@ static int dt2801_reset(struct comedi_device *dev)
 	outb_p(DT_C_RESET, dev->iobase + DT2801_CMD);
 	/* dt2801_writecmd(dev,DT_C_RESET); */
 
-	comedi_udelay(100);
+	udelay(100);
 	timeout = 10000;
 	do {
 		stat = inb_p(dev->iobase + DT2801_STATUS);
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index f05b3e711157..a112324fc45d 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -335,7 +335,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 #if 0
 	outb(0, dev->iobase + DT2811_ADCSR);
-	comedi_udelay(100);
+	udelay(100);
 	i = inb(dev->iobase + DT2811_ADDATLO);
 	i = inb(dev->iobase + DT2811_ADDATHI);
 #endif
@@ -351,7 +351,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->iobase + DT2811_ADCSR);
 		outb(0, dev->iobase + DT2811_ADGCR);
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -366,7 +366,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			i = inb(dev->iobase + DT2811_ADDATLO);
 			i = inb(dev->iobase + DT2811_ADDATHI);
 			printk("(irq = %d)\n", irq);
-			ret = comedi_request_irq(irq, dt2811_interrupt, 0,
+			ret = request_irq(irq, dt2811_interrupt, 0,
 				driver_name, dev);
 			if (ret < 0)
 				return -EIO;
@@ -489,7 +489,7 @@ static int dt2811_detach(struct comedi_device *dev)
 	printk("comedi%d: dt2811: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase) {
 		release_region(dev->iobase, DT2811_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 246d0d74ce9c..c639d7415ce7 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -97,7 +97,7 @@ static int dt2814_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		for (i = 0; i < DT2814_TIMEOUT; i++) {
 			status = inb(dev->iobase + DT2814_CSR);
 			printk("dt2814: status: %02x\n", status);
-			comedi_udelay(10);
+			udelay(10);
 			if (status & DT2814_FINISH)
 				break;
 		}
@@ -262,7 +262,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = "dt2814";
 
 	outb(0, dev->iobase + DT2814_CSR);
-	comedi_udelay(100);
+	udelay(100);
 	if (inb(dev->iobase + DT2814_CSR) & DT2814_ERR) {
 		printk("reset error (fatal)\n");
 		return -EIO;
@@ -279,7 +279,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 		outb(0, dev->iobase + DT2814_CSR);
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -293,7 +293,7 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	dev->irq = 0;
 	if (irq > 0) {
-		if (comedi_request_irq(irq, dt2814_interrupt, 0, "dt2814", dev)) {
+		if (request_irq(irq, dt2814_interrupt, 0, "dt2814", dev)) {
 			printk("(irq %d unavailable)\n", irq);
 		} else {
 			printk("( irq = %d )\n", irq);
@@ -337,7 +337,7 @@ static int dt2814_detach(struct comedi_device *dev)
 	printk("comedi%d: dt2814: remove\n", dev->minor);
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase) {
 		release_region(dev->iobase, DT2814_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index d83ee4acbb19..b42dec60e1b7 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -135,7 +135,7 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x00);
 		if (status != 0) {
-			rt_printk
+			printk
 				("dt2815: failed to write low byte on %d reason %x\n",
 				chan, status);
 			return -EBUSY;
@@ -145,7 +145,7 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		status = dt2815_wait_for_status(dev, 0x10);
 		if (status != 0x10) {
-			rt_printk
+			printk
 				("dt2815: failed to write high byte on %d reason %x\n",
 				chan, status);
 			return -EBUSY;
@@ -226,7 +226,7 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		/* This is incredibly slow (approx 20 ms) */
 		unsigned int status;
 
-		comedi_udelay(1000);
+		udelay(1000);
 		status = inb(dev->iobase + DT2815_STATUS);
 		if (status == 4) {
 			unsigned int program;
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index f852b9347027..22b7304af396 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -389,7 +389,7 @@ struct dt282x_private {
 		int _i;					\
 		for (_i=0;_i<DT2821_TIMEOUT;_i++){	\
 			if (a){_i=0;break;}		\
-			comedi_udelay(5);			\
+			udelay(5);			\
 		}					\
 		if (_i){b}				\
 	}while (0)
@@ -463,7 +463,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device *dev)
 
 	size = cfc_read_array_from_buffer(s, ptr, devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		dt282x_ao_cancel(dev, s);
 		s->async->events |= COMEDI_CB_OVERFLOW;
 		return;
@@ -1080,7 +1080,7 @@ static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice
 	size = cfc_read_array_from_buffer(s, devpriv->dma[0].buf,
 		devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		return -EPIPE;
 	}
 	prep_ao_dma(dev, 0, size);
@@ -1088,7 +1088,7 @@ static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice
 	size = cfc_read_array_from_buffer(s, devpriv->dma[1].buf,
 		devpriv->dma_maxsize);
 	if (size == 0) {
-		rt_printk("dt282x: AO underrun\n");
+		printk("dt282x: AO underrun\n");
 		return -EPIPE;
 	}
 	prep_ao_dma(dev, 1, size);
@@ -1298,7 +1298,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 		/* trigger interrupt */
 
-		comedi_udelay(100);
+		udelay(100);
 
 		irq = probe_irq_off(irqs);
 		restore_flags(flags);
@@ -1309,8 +1309,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	if (irq > 0) {
 		printk(" ( irq = %d )", irq);
-		ret = comedi_request_irq(irq, dt282x_interrupt, 0, "dt282x",
-			dev);
+		ret = request_irq(irq, dt282x_interrupt, 0, "dt282x", dev);
 		if (ret < 0) {
 			printk(" failed to get irq\n");
 			return -EIO;
@@ -1403,7 +1402,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static void free_resources(struct comedi_device *dev)
 {
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->iobase)
 		release_region(dev->iobase, DT2821_SIZE);
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 7440921c408f..6ece082583c9 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -307,7 +307,7 @@ static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd)
 		status = readw(devpriv->io_addr + DPR_Command_Mbx);
 		if ((status & DT3000_COMPLETION_MASK) != DT3000_NOTPROCESSED)
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	if ((status & DT3000_COMPLETION_MASK) == DT3000_NOERROR) {
 		return 0;
@@ -825,8 +825,8 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = this_board->name;
 
-	if (comedi_request_irq(devpriv->pci_dev->irq, dt3k_interrupt,
-			IRQF_SHARED, "dt3000", dev)) {
+	if (request_irq(devpriv->pci_dev->irq, dt3k_interrupt, IRQF_SHARED,
+			"dt3000", dev)) {
 		printk(" unable to allocate IRQ %u\n", devpriv->pci_dev->irq);
 		return -EINVAL;
 	}
@@ -895,7 +895,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static int dt3000_detach(struct comedi_device *dev)
 {
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->pci_dev) {
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index f8ee5c5493b8..b8657c47d4cc 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -78,7 +78,7 @@ static int fl512_ai_insn(struct comedi_device *dev,
 		outb(chan, iobase + 2);	/* select chan */
 		outb(0, iobase + 3);	/* start conversion */
 		/* XXX should test "done" flag instead of delay */
-		comedi_udelay(30);	/* sleep 30 usec */
+		udelay(30);	/* sleep 30 usec */
 		lo_byte = inb(iobase + 2);	/* low 8 byte */
 		hi_byte = inb(iobase + 3) & 0xf;	/* high 4 bit and mask */
 		data[n] = lo_byte + (hi_byte << 8);
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index a344e2cebde1..dedd0df37549 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -66,7 +66,7 @@ static int dio_config_block_size(struct comedi_device *dev, unsigned int *data);
 /* #define HPDI_DEBUG      enable debugging code */
 
 #ifdef HPDI_DEBUG
-#define DEBUG_PRINT(format, args...)  rt_printk(format , ## args)
+#define DEBUG_PRINT(format, args...)  printk(format , ## args)
 #else
 #define DEBUG_PRINT(format, args...)
 #endif
@@ -109,7 +109,7 @@ enum hpdi_registers {
 int command_channel_valid(unsigned int channel)
 {
 	if (channel == 0 || channel > 6) {
-		rt_printk("gsc_hpdi: bug! invalid cable command channel\n");
+		printk("gsc_hpdi: bug! invalid cable command channel\n");
 		return 0;
 	}
 	return 1;
@@ -465,7 +465,7 @@ static int init_hpdi(struct comedi_device *dev)
 	uint32_t plx_intcsr_bits;
 
 	writel(BOARD_RESET_BIT, priv(dev)->hpdi_iobase + BOARD_CONTROL_REG);
-	comedi_udelay(10);
+	udelay(10);
 
 	writel(almost_empty_bits(32) | almost_full_bits(32),
 		priv(dev)->hpdi_iobase + RX_PROG_ALMOST_REG);
@@ -622,7 +622,7 @@ static int hpdi_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	init_plx9080(dev);
 
 	/*  get irq */
-	if (comedi_request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
+	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
 			driver_hpdi.driver_name, dev)) {
 		printk(" unable to allocate irq %u\n", pcidev->irq);
 		return -EINVAL;
@@ -667,7 +667,7 @@ static int hpdi_detach(struct comedi_device *dev)
 	printk("comedi%d: gsc_hpdi: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (priv(dev)) {
 		if (priv(dev)->hw_dev) {
 			if (priv(dev)->plx9080_iobase) {
@@ -862,11 +862,11 @@ static int di_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	writel(bits, priv(dev)->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG);
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	/*  enable dma transfer */
 	writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | PLX_CLEAR_DMA_INTR_BIT,
 		priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	if (cmd->stop_src == TRIG_COUNT)
 		priv(dev)->dio_count = cmd->stop_arg;
@@ -971,7 +971,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 			priv(dev)->hpdi_iobase + INTERRUPT_STATUS_REG);
 	}
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma0_status = readb(priv(dev)->plx9080_iobase + PLX_DMA0_CS_REG);
 	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
 		writeb((dma0_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
@@ -983,10 +983,10 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 		}
 		DEBUG_PRINT(" cleared dma ch0 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  spin lock makes sure noone else changes plx dma control reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	dma1_status = readb(priv(dev)->plx9080_iobase + PLX_DMA1_CS_REG);
 	if (plx_status & ICS_DMA1_A)	/*  XXX */
 	{			/*  dma chan 1 interrupt */
@@ -996,7 +996,7 @@ static irqreturn_t handle_interrupt(int irq, void *d)
 
 		DEBUG_PRINT(" cleared dma ch1 interrupt\n");
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  clear possible plx9080 interrupt sources */
 	if (plx_status & ICS_LDIA) {	/*  clear local doorbell interrupt */
@@ -1036,11 +1036,11 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	unsigned long flags;
 
 	/*  spinlock for plx dma control/status reg */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	plx9080_abort_dma(priv(dev)->plx9080_iobase, channel);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 }
 
 static int hpdi_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 7121b37b5ea1..4cfdfc55b6ed 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -282,7 +282,7 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev, struct comedi_subde
 			readw(devpriv->io_addr + ICP_MULTI_ADC_CSR));
 #endif
 
-		comedi_udelay(1);
+		udelay(1);
 
 #ifdef ICP_MULTI_EXTDEBUG
 		printk("icp multi C n=%d ST=%4x\n", n,
@@ -304,7 +304,7 @@ static int icp_multi_insn_read_ai(struct comedi_device *dev, struct comedi_subde
 						ICP_MULTI_ADC_CSR));
 #endif
 
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		/*  If we reach here, a timeout has occurred */
@@ -411,7 +411,7 @@ static int icp_multi_insn_write_ao(struct comedi_device *dev, struct comedi_subd
 						ICP_MULTI_DAC_CSR));
 #endif
 
-			comedi_udelay(1);
+			udelay(1);
 		}
 
 		/*  If we reach here, a timeout has occurred */
@@ -842,7 +842,7 @@ static int icp_multi_reset(struct comedi_device *dev)
 				devpriv->io_addr + ICP_MULTI_DAC_CSR);
 
 			/*  Delay to allow DAC time to recover */
-			comedi_udelay(1);
+			udelay(1);
 		}
 	/*  Digital outputs to 0 */
 	writew(0, devpriv->io_addr + ICP_MULTI_DO);
@@ -954,7 +954,7 @@ static int icp_multi_attach(struct comedi_device *dev, struct comedi_devconfig *
 
 	if (this_board->have_irq) {
 		if (irq) {
-			if (comedi_request_irq(irq, interrupt_service_icp_multi,
+			if (request_irq(irq, interrupt_service_icp_multi,
 					IRQF_SHARED, "Inova Icp Multi", dev)) {
 				printk(", unable to allocate IRQ %u, DISABLING IT", irq);
 				irq = 0;	/* Can't use IRQ */
@@ -1072,7 +1072,7 @@ static int icp_multi_detach(struct comedi_device *dev)
 			icp_multi_reset(dev);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->private && devpriv->io_addr)
 		iounmap(devpriv->io_addr);
diff --git a/drivers/staging/comedi/drivers/icp_multi.h b/drivers/staging/comedi/drivers/icp_multi.h
index 21d84766fea8..354ba8f14f81 100644
--- a/drivers/staging/comedi/drivers/icp_multi.h
+++ b/drivers/staging/comedi/drivers/icp_multi.h
@@ -168,14 +168,14 @@ static int pci_card_alloc(struct pcilst_struct *inova)
 	int i;
 
 	if (!inova) {
-		rt_printk(" - BUG!! inova is NULL!\n");
+		printk(" - BUG!! inova is NULL!\n");
 		return -1;
 	}
 
 	if (inova->used)
 		return 1;
 	if (comedi_pci_enable(inova->pcidev, "icp_multi")) {
-		rt_printk(" - Can't enable PCI device and request regions!\n");
+		printk(" - Can't enable PCI device and request regions!\n");
 		return -1;
 	}
 	/* Resources will be accurate now. */
@@ -248,19 +248,19 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 
 		card = find_free_pci_card_by_device(vendor_id, device_id);
 		if (card == NULL) {
-			rt_printk(" - Unused card not found in system!\n");
+			printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
 	} else {
 		switch (find_free_pci_card_by_position(vendor_id, device_id,
 				pci_bus, pci_slot, &card)) {
 		case 1:
-			rt_printk
+			printk
 				(" - Card not found on requested position b:s %d:%d!\n",
 				pci_bus, pci_slot);
 			return NULL;
 		case 2:
-			rt_printk
+			printk
 				(" - Card on requested position is used b:s %d:%d!\n",
 				pci_bus, pci_slot);
 			return NULL;
@@ -270,7 +270,7 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 	err = pci_card_alloc(card);
 	if (err != 0) {
 		if (err > 0)
-			rt_printk(" - Can't allocate card!\n");
+			printk(" - Can't allocate card!\n");
 		/* else: error already printed. */
 		return NULL;
 	}
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 8f7a5661a116..baf83c6a9412 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -185,10 +185,10 @@ static void set_transforms(volatile struct jr3_channel *channel,
 
 		set_u16(&channel->transforms[num].link[i].link_type,
 			transf.link[i].link_type);
-		comedi_udelay(1);
+		udelay(1);
 		set_s16(&channel->transforms[num].link[i].link_amount,
 			transf.link[i].link_amount);
-		comedi_udelay(1);
+		udelay(1);
 		if (transf.link[i].link_type == end_x_form) {
 			break;
 		}
@@ -496,12 +496,12 @@ static int jr3_download_firmware(struct comedi_device *dev, const u8 *data,
 								channel[i].
 								program_low
 								[addr], data1);
-							comedi_udelay(1);
+							udelay(1);
 							set_u16(&p->iobase->
 								channel[i].
 								program_high
 								[addr], data2);
-							comedi_udelay(1);
+							udelay(1);
 
 						}
 					}
@@ -734,7 +734,7 @@ static void jr3_pci_poll_dev(unsigned long data)
 	int delay;
 	int i;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	delay = 1000;
 	now = jiffies;
 	/*  Poll all channels that are ready to be polled */
@@ -757,7 +757,7 @@ static void jr3_pci_poll_dev(unsigned long data)
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->timer.expires = jiffies + msecs_to_jiffies(delay);
 	add_timer(&devpriv->timer);
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index bffa3cf91c84..bf7833011a4c 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -283,7 +283,7 @@ static int me4000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->insn_read = me4000_ai_insn_read;
 
 		if (info->irq > 0) {
-			if (comedi_request_irq(info->irq, me4000_ai_isr,
+			if (request_irq(info->irq, me4000_ai_isr,
 					IRQF_SHARED, "ME-4000", dev)) {
 				printk("comedi%d: me4000: me4000_attach(): Unable to allocate irq\n", dev->minor);
 			} else {
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
index ae9017744537..22a4029c30b5 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -258,7 +258,7 @@ struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 	struct mite_channel *channel = NULL;
 
 	/*  spin lock so mite_release_channel can be called safely from interrupts */
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	for (i = min_channel; i <= max_channel; ++i) {
 		if (mite->channel_allocated[i] == 0) {
 			mite->channel_allocated[i] = 1;
@@ -267,7 +267,7 @@ struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
 			break;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return channel;
 }
 
@@ -277,7 +277,7 @@ void mite_release_channel(struct mite_channel *mite_chan)
 	unsigned long flags;
 
 	/*  spin lock to prevent races with mite_request_channel */
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	if (mite->channel_allocated[mite_chan->channel]) {
 		mite_dma_disarm(mite_chan);
 		mite_dma_reset(mite_chan);
@@ -292,7 +292,7 @@ MITE_CHCR reg isn't changed while dma is still active!) */
 		mite_chan->ring = NULL;
 		mmiowb();
 	}
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 }
 
 void mite_dma_arm(struct mite_channel *mite_chan)
@@ -307,11 +307,11 @@ void mite_dma_arm(struct mite_channel *mite_chan)
 	smp_mb();
 	/* arm */
 	chor = CHOR_START;
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	mite_chan->done = 0;
 	writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 /*       mite_dma_tcr(mite, channel); */
 }
 
@@ -413,7 +413,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		mcr |= CR_PSIZE32;
 		break;
 	default:
-		rt_printk
+		printk
 			("mite: bug! invalid mem bit width for dma transfer\n");
 		break;
 	}
@@ -433,7 +433,7 @@ void mite_prep_dma(struct mite_channel *mite_chan,
 		dcr |= CR_PSIZE32;
 		break;
 	default:
-		rt_printk
+		printk
 			("mite: bug! invalid dev bit width for dma transfer\n");
 		break;
 	}
@@ -539,7 +539,7 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, struct comedi_async * as
 	nbytes = mite_bytes_written_to_memory_lb(mite_chan);
 	if ((int)(mite_bytes_written_to_memory_ub(mite_chan) -
 			old_alloc_count) > 0) {
-		rt_printk("mite: DMA overwrite of free area\n");
+		printk("mite: DMA overwrite of free area\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -581,7 +581,7 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, struct comedi_async * a
 		(int)(nbytes_ub - stop_count) > 0)
 		nbytes_ub = stop_count;
 	if ((int)(nbytes_ub - old_alloc_count) > 0) {
-		rt_printk("mite: DMA underrun\n");
+		printk("mite: DMA underrun\n");
 		async->events |= COMEDI_CB_OVERFLOW;
 		return -1;
 	}
@@ -602,7 +602,7 @@ unsigned mite_get_status(struct mite_channel *mite_chan)
 	unsigned status;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	status = readl(mite->mite_io_addr + MITE_CHSR(mite_chan->channel));
 	if (status & CHSR_DONE) {
 		mite_chan->done = 1;
@@ -610,7 +610,7 @@ unsigned mite_get_status(struct mite_channel *mite_chan)
 			mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
 	}
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return status;
 }
 
@@ -621,9 +621,9 @@ int mite_done(struct mite_channel *mite_chan)
 	int done;
 
 	mite_get_status(mite_chan);
-	comedi_spin_lock_irqsave(&mite->lock, flags);
+	spin_lock_irqsave(&mite->lock, flags);
 	done = mite_chan->done;
-	comedi_spin_unlock_irqrestore(&mite->lock, flags);
+	spin_unlock_irqrestore(&mite->lock, flags);
 	return done;
 }
 
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
index cdaf8a31688a..31942319aa38 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -405,7 +405,7 @@ static inline int CR_RL(unsigned int retry_limit)
 		value++;
 	}
 	if (value > 0x7)
-		rt_printk("comedi: bug! retry_limit too large\n");
+		printk("comedi: bug! retry_limit too large\n");
 	return (value & 0x7) << 21;
 }
 
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index 15731a285442..4a0e647f631a 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -166,9 +166,9 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long iobase;
 
 	iobase = it->options[0];
-	rt_printk("comedi%d: mpc624 [0x%04lx, ", dev->minor, iobase);
+	printk("comedi%d: mpc624 [0x%04lx, ", dev->minor, iobase);
 	if (request_region(iobase, MPC624_SIZE, "mpc624") == NULL) {
-		rt_printk("I/O port(s) in use\n");
+		printk("I/O port(s) in use\n");
 		return -EIO;
 	}
 
@@ -182,46 +182,46 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	switch (it->options[1]) {
 	case 0:
 		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
-		rt_printk("3.52 kHz, ");
+		printk("3.52 kHz, ");
 		break;
 	case 1:
 		devpriv->ulConvertionRate = MPC624_SPEED_1_76_kHz;
-		rt_printk("1.76 kHz, ");
+		printk("1.76 kHz, ");
 		break;
 	case 2:
 		devpriv->ulConvertionRate = MPC624_SPEED_880_Hz;
-		rt_printk("880 Hz, ");
+		printk("880 Hz, ");
 		break;
 	case 3:
 		devpriv->ulConvertionRate = MPC624_SPEED_440_Hz;
-		rt_printk("440 Hz, ");
+		printk("440 Hz, ");
 		break;
 	case 4:
 		devpriv->ulConvertionRate = MPC624_SPEED_220_Hz;
-		rt_printk("220 Hz, ");
+		printk("220 Hz, ");
 		break;
 	case 5:
 		devpriv->ulConvertionRate = MPC624_SPEED_110_Hz;
-		rt_printk("110 Hz, ");
+		printk("110 Hz, ");
 		break;
 	case 6:
 		devpriv->ulConvertionRate = MPC624_SPEED_55_Hz;
-		rt_printk("55 Hz, ");
+		printk("55 Hz, ");
 		break;
 	case 7:
 		devpriv->ulConvertionRate = MPC624_SPEED_27_5_Hz;
-		rt_printk("27.5 Hz, ");
+		printk("27.5 Hz, ");
 		break;
 	case 8:
 		devpriv->ulConvertionRate = MPC624_SPEED_13_75_Hz;
-		rt_printk("13.75 Hz, ");
+		printk("13.75 Hz, ");
 		break;
 	case 9:
 		devpriv->ulConvertionRate = MPC624_SPEED_6_875_Hz;
-		rt_printk("6.875 Hz, ");
+		printk("6.875 Hz, ");
 		break;
 	default:
-		rt_printk
+		printk
 			("illegal convertion rate setting! Valid numbers are 0..9. Using 9 => 6.875 Hz, ");
 		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
 	}
@@ -237,29 +237,29 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	switch (it->options[1]) {
 	default:
 		s->maxdata = 0x3FFFFFFF;
-		rt_printk("30 bit, ");
+		printk("30 bit, ");
 	}
 
 	switch (it->options[1]) {
 	case 0:
 		s->range_table = &range_mpc624_bipolar1;
-		rt_printk("1.01V]: ");
+		printk("1.01V]: ");
 		break;
 	default:
 		s->range_table = &range_mpc624_bipolar10;
-		rt_printk("10.1V]: ");
+		printk("10.1V]: ");
 	}
 	s->len_chanlist = 1;
 	s->insn_read = mpc624_ai_rinsn;
 
-	rt_printk("attached\n");
+	printk("attached\n");
 
 	return 1;
 }
 
 static int mpc624_detach(struct comedi_device *dev)
 {
-	rt_printk("comedi%d: mpc624: remove\n", dev->minor);
+	printk("comedi%d: mpc624: remove\n", dev->minor);
 
 	if (dev->iobase)
 		release_region(dev->iobase, MPC624_SIZE);
@@ -279,48 +279,48 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 
 	/*  WARNING: We always write 0 to GNSWA bit, so the channel range is +-/10.1Vdc */
 	outb(insn->chanspec, dev->iobase + MPC624_GNMUXCH);
-/* rt_printk("Channel %d: \n", insn->chanspec); */
+/* printk("Channel %d: \n", insn->chanspec); */
 	if (!insn->n) {
-		rt_printk("MPC624: Warning, no data to aquire\n");
+		printk("MPC624: Warning, no data to aquire\n");
 		return 0;
 	}
 
 	for (n = 0; n < insn->n; n++) {
 		/*  Trigger the convertion */
 		outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 		outb(MPC624_ADCS | MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 		outb(0, dev->iobase + MPC624_ADC);
-		comedi_udelay(1);
+		udelay(1);
 
 		/*  Wait for the convertion to end */
 		for (i = 0; i < TIMEOUT; i++) {
 			ucPort = inb(dev->iobase + MPC624_ADC);
 			if (ucPort & MPC624_ADBUSY)
-				comedi_udelay(1000);
+				udelay(1000);
 			else
 				break;
 		}
 		if (i == TIMEOUT) {
-			rt_printk("MPC624: timeout (%dms)\n", TIMEOUT);
+			printk("MPC624: timeout (%dms)\n", TIMEOUT);
 			data[n] = 0;
 			return -ETIMEDOUT;
 		}
 		/*  Start reading data */
 		data_in = 0;
 		data_out = devpriv->ulConvertionRate;
-		comedi_udelay(1);
+		udelay(1);
 		for (i = 0; i < 32; i++) {
 			/*  Set the clock low */
 			outb(0, dev->iobase + MPC624_ADC);
-			comedi_udelay(1);
+			udelay(1);
 
 			if (data_out & (1 << 31))	/*  the next bit is a 1 */
 			{
 				/*  Set the ADSDI line (send to MPC624) */
 				outb(MPC624_ADSDI, dev->iobase + MPC624_ADC);
-				comedi_udelay(1);
+				udelay(1);
 				/*  Set the clock high */
 				outb(MPC624_ADSCK | MPC624_ADSDI,
 					dev->iobase + MPC624_ADC);
@@ -328,17 +328,17 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 			{
 				/*  Set the ADSDI line (send to MPC624) */
 				outb(0, dev->iobase + MPC624_ADC);
-				comedi_udelay(1);
+				udelay(1);
 				/*  Set the clock high */
 				outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
 			}
 			/*  Read ADSDO on high clock (receive from MPC624) */
-			comedi_udelay(1);
+			udelay(1);
 			data_in <<= 1;
 			data_in |=
 				(inb(dev->iobase +
 					MPC624_ADC) & MPC624_ADSDO) >> 4;
-			comedi_udelay(1);
+			udelay(1);
 
 			data_out <<= 1;
 		}
@@ -357,10 +357,10 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s
 		/*    00: sub-LSB */
 
 		if (data_in & MPC624_EOC_BIT)
-			rt_printk("MPC624: EOC bit is set (data_in=%lu)!",
+			printk("MPC624: EOC bit is set (data_in=%lu)!",
 				data_in);
 		if (data_in & MPC624_DMY_BIT)
-			rt_printk("MPC624: DMY bit is set (data_in=%lu)!",
+			printk("MPC624: DMY bit is set (data_in=%lu)!",
 				data_in);
 		if (data_in & MPC624_SGN_BIT)	/*  check the sign bit */
 		{		/*  The voltage is positive */
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 2751ea7f9192..491bdf22cd3e 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -432,8 +432,8 @@ static int ni6527_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->mite->daq_io_addr + Clear_Register);
 	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 
-	ret = comedi_request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
-		IRQF_SHARED, "ni6527", dev);
+	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
+			  IRQF_SHARED, "ni6527", dev);
 	if (ret < 0) {
 		printk(" irq not available");
 	} else
@@ -452,7 +452,7 @@ static int ni6527_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (devpriv && devpriv->mite) {
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index b4e63fba8aba..8c3cbf9f0e11 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -437,12 +437,12 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev, struct comedi_subdev
 			writeb(bits,
 				private(dev)->mite->daq_io_addr +
 				Port_Data(port));
-/* rt_printk("wrote 0x%x to port %i\n", bits, port); */
+/* printk("wrote 0x%x to port %i\n", bits, port); */
 		}
 		port_read_bits =
 			readb(private(dev)->mite->daq_io_addr +
 			Port_Data(port));
-/* rt_printk("read 0x%x from port %i\n", port_read_bits, port); */
+/* printk("read 0x%x from port %i\n", port_read_bits, port); */
 		if (bitshift > 0) {
 			port_read_bits <<= bitshift;
 		} else {
@@ -742,8 +742,8 @@ static int ni_65xx_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	/* Set filter interval to 0  (32bit reg) */
 	writeb(0x00000000, private(dev)->mite->daq_io_addr + Filter_Interval);
 
-	ret = comedi_request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
-		"ni_65xx", dev);
+	ret = request_irq(dev->irq, ni_65xx_interrupt, IRQF_SHARED,
+			  "ni_65xx", dev);
 	if (ret < 0) {
 		dev->irq = 0;
 		printk(" irq not available");
@@ -764,7 +764,7 @@ static int ni_65xx_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	if (private(dev)) {
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index 78c106ce5fa5..68a6ec8fd1a0 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -695,7 +695,7 @@ static enum NI_660x_Register ni_gpct_to_660x_register(enum ni_gpct_register reg)
 		ni_660x_register = G3InterruptEnable;
 		break;
 	default:
-		rt_printk("%s: unhandled register 0x%x in switch.\n",
+		printk("%s: unhandled register 0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -719,7 +719,7 @@ static inline void ni_660x_write_register(struct comedi_device *dev,
 		writel(bits, write_address);
 		break;
 	default:
-		rt_printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 			__FILE__, __func__, reg);
 		BUG();
 		break;
@@ -741,7 +741,7 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev,
 		return readl(read_address);
 		break;
 	default:
-		rt_printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
+		printk("%s: %s: bug! unhandled case (reg=0x%x) in switch.\n",
 			__FILE__, __func__, reg);
 		BUG();
 		break;
@@ -777,7 +777,7 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev,
 	unsigned mite_channel, struct ni_gpct *counter)
 {
 	unsigned long flags;
-	comedi_spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] &=
 		~dma_select_mask(mite_channel);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] |=
@@ -788,14 +788,14 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev,
 			chip_index] | dma_reset_bit(mite_channel),
 		DMAConfigRegister);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
 }
 
 static inline void ni_660x_unset_dma_channel(struct comedi_device *dev,
 	unsigned mite_channel, struct ni_gpct *counter)
 {
 	unsigned long flags;
-	comedi_spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&private(dev)->soft_reg_copy_lock, flags);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] &=
 		~dma_select_mask(mite_channel);
 	private(dev)->dma_configuration_soft_copies[counter->chip_index] |=
@@ -804,7 +804,7 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev,
 		private(dev)->dma_configuration_soft_copies[counter->
 			chip_index], DMAConfigRegister);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->soft_reg_copy_lock, flags);
 }
 
 static int ni_660x_request_mite_channel(struct comedi_device *dev,
@@ -813,13 +813,13 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	unsigned long flags;
 	struct mite_channel *mite_chan;
 
-	comedi_spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
+	spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
 	BUG_ON(counter->mite_chan);
 	mite_chan =
 		mite_request_channel(private(dev)->mite, mite_ring(private(dev),
 			counter));
 	if (mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock,
+		spin_unlock_irqrestore(&private(dev)->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for counter.");
@@ -828,7 +828,7 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	mite_chan->dir = direction;
 	ni_tio_set_mite_channel(counter, mite_chan);
 	ni_660x_set_dma_channel(dev, mite_chan->channel, counter);
-	comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -836,7 +836,7 @@ void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *cou
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
+	spin_lock_irqsave(&private(dev)->mite_channel_lock, flags);
 	if (counter->mite_chan) {
 		struct mite_channel *mite_chan = counter->mite_chan;
 
@@ -844,7 +844,7 @@ void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *cou
 		ni_tio_set_mite_channel(counter, NULL);
 		mite_release_channel(mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->mite_channel_lock, flags);
 }
 
 static int ni_660x_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -921,13 +921,13 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d)
 	if (dev->attached == 0)
 		return IRQ_NONE;
 	/* lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
+	spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
 	smp_mb();
 	for (i = 0; i < ni_660x_num_counters(dev); ++i) {
 		s = dev->subdevices + NI_660X_GPCT_SUBDEV(i);
 		ni_660x_handle_gpct_interrupt(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -936,9 +936,9 @@ static int ni_660x_input_poll(struct comedi_device *dev,
 {
 	unsigned long flags;
 	/* lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
+	spin_lock_irqsave(&private(dev)->interrupt_lock, flags);
 	mite_sync_input_dma(subdev_to_counter(s)->mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
+	spin_unlock_irqrestore(&private(dev)->interrupt_lock, flags);
 	return comedi_buf_read_n_available(s->async);
 }
 
@@ -1107,10 +1107,8 @@ static int ni_660x_attach(struct comedi_device *dev, struct comedi_devconfig *it
 	for (i = 0; i < board(dev)->n_chips; ++i) {
 		set_tio_counterswap(dev, i);
 	}
-	ret = comedi_request_irq(mite_irq(private(dev)->mite),
-				 ni_660x_interrupt, IRQF_SHARED, "ni_660x",
-				 dev);
-
+	ret = request_irq(mite_irq(private(dev)->mite), ni_660x_interrupt,
+			  IRQF_SHARED, "ni_660x", dev);
 	if (ret < 0) {
 		printk(" irq not available\n");
 		return ret;
@@ -1131,7 +1129,7 @@ static int ni_660x_detach(struct comedi_device *dev)
 
 	/* Free irq */
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->private) {
 		if (private(dev)->counter_dev)
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index 0a9678cdadc7..7bb22919eb8f 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -217,7 +217,7 @@ static int ni_670x_detach(struct comedi_device *dev)
 		mite_unsetup(devpriv->mite);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index e6afc42d5d37..4f348b77bb4a 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -201,9 +201,9 @@ COMEDI_INITCLEANUP(driver_a2150);
 
 static void ni_dump_regs(struct comedi_device *dev)
 {
-	rt_printk("config bits 0x%x\n", devpriv->config_bits);
-	rt_printk("irq dma bits 0x%x\n", devpriv->irq_dma_bits);
-	rt_printk("status bits 0x%x\n", inw(dev->iobase + STATUS_REG));
+	printk("config bits 0x%x\n", devpriv->config_bits);
+	printk("irq dma bits 0x%x\n", devpriv->irq_dma_bits);
+	printk("status bits 0x%x\n", inw(dev->iobase + STATUS_REG));
 }
 
 #endif
@@ -370,7 +370,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			printk(" invalid irq line %u\n", irq);
 			return -EINVAL;
 		}
-		if (comedi_request_irq(irq, a2150_interrupt, 0,
+		if (request_irq(irq, a2150_interrupt, 0,
 				driver_a2150.driver_name, dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -437,7 +437,7 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	for (i = 0; i < timeout; i++) {
 		if ((DCAL_BIT & inw(dev->iobase + STATUS_REG)) == 0)
 			break;
-		comedi_udelay(1000);
+		udelay(1000);
 	}
 	if (i == timeout) {
 		printk(" timed out waiting for offset calibration to complete\n");
@@ -461,7 +461,7 @@ static int a2150_detach(struct comedi_device *dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (devpriv) {
 		if (devpriv->dma)
 			free_dma(devpriv->dma);
@@ -764,7 +764,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		for (i = 0; i < timeout; i++) {
 			if (inw(dev->iobase + STATUS_REG) & FNE_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -778,7 +778,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		for (i = 0; i < timeout; i++) {
 			if (inw(dev->iobase + STATUS_REG) & FNE_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -789,7 +789,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 #endif
 		data[n] = inw(dev->iobase + FIFO_DATA_REG);
 #ifdef A2150_DEBUG
-		rt_printk(" data is %i\n", data[n]);
+		printk(" data is %i\n", data[n]);
 #endif
 		data[n] ^= 0x8000;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c
index 0116a4a0a06e..c39d388c90f2 100644
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ b/drivers/staging/comedi/drivers/ni_atmio.c
@@ -301,14 +301,14 @@ static void ni_atmio_win_out(struct comedi_device *dev, uint16_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if ((addr) < 8) {
 		ni_writew(data, addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ni_writew(data, Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t ni_atmio_win_in(struct comedi_device *dev, int addr)
@@ -316,14 +316,14 @@ static uint16_t ni_atmio_win_in(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ret = ni_readw(addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ret = ni_readw(Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -362,7 +362,7 @@ static int ni_atmio_detach(struct comedi_device *dev)
 	if (dev->iobase)
 		release_region(dev->iobase, NI_SIZE);
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (devpriv->isapnp_dev)
 		pnp_device_detach(devpriv->isapnp_dev);
@@ -478,8 +478,8 @@ static int ni_atmio_attach(struct comedi_device *dev, struct comedi_devconfig *i
 			return -EINVAL;
 		}
 		printk(" ( irq = %u )", irq);
-		ret = comedi_request_irq(irq, ni_E_interrupt,
-					  NI_E_IRQ_FLAGS, "ni_atmio", dev);
+		ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+				  "ni_atmio", dev);
 
 		if (ret < 0) {
 			printk(" irq not available\n");
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 215f7a0e9d36..67034380af3a 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -579,7 +579,7 @@ static int atmio16d_ai_insn_read(struct comedi_device *dev, struct comedi_subdev
 		}
 		/* end waiting, now check if it timed out */
 		if (t == ATMIO16D_TIMEOUT) {
-			rt_printk("atmio16d: timeout\n");
+			printk("atmio16d: timeout\n");
 
 			return -ETIME;
 		}
@@ -743,8 +743,7 @@ static int atmio16d_attach(struct comedi_device *dev, struct comedi_devconfig *i
 	irq = it->options[1];
 	if (irq) {
 
-		ret = comedi_request_irq(irq, atmio16d_interrupt,
-					  0, "atmio16d", dev);
+		ret = request_irq(irq, atmio16d_interrupt, 0, "atmio16d", dev);
 		if (ret < 0) {
 			printk("failed to allocate irq %u\n", irq);
 			return ret;
@@ -856,7 +855,7 @@ static int atmio16d_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 3);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	reset_atmio16d(dev);
 
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index f01c0b008b50..6a69d36018e0 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -425,7 +425,7 @@ static int dio700_detach(struct comedi_device *dev)
 	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
 		release_region(dev->iobase, DIO700_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 };
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index 68c3121c1b32..7f378e529d0f 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -182,7 +182,7 @@ static int dio24_detach(struct comedi_device *dev)
 	if (thisboard->bustype != pcmcia_bustype && dev->iobase)
 		release_region(dev->iobase, DIO24_SIZE);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 };
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 031d994ed227..435e34a838aa 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -516,7 +516,7 @@ int labpc_common_attach(struct comedi_device *dev, unsigned long iobase,
 		isr_flags = 0;
 		if (thisboard->bustype == pci_bustype)
 			isr_flags |= IRQF_SHARED;
-		if (comedi_request_irq(irq, labpc_interrupt, isr_flags,
+		if (request_irq(irq, labpc_interrupt, isr_flags,
 				driver_labpc.driver_name, dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
@@ -737,7 +737,7 @@ int labpc_common_detach(struct comedi_device *dev)
 	if (devpriv->dma_chan)
 		free_dma(devpriv->dma_chan);
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (thisboard->bustype == isa_bustype && dev->iobase)
 		release_region(dev->iobase, LABPC_SIZE);
 #ifdef CONFIG_COMEDI_PCI
@@ -759,10 +759,10 @@ static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->command3_bits = 0;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
@@ -788,7 +788,7 @@ static enum scan_mode labpc_ai_scan_mode(const struct comedi_cmd *cmd)
 	if (CR_CHAN(cmd->chanlist[0]) > CR_CHAN(cmd->chanlist[1]))
 		return MODE_MULT_CHAN_DOWN;
 
-	rt_printk("ni_labpc: bug! this should never happen\n");
+	printk("ni_labpc: bug! this should never happen\n");
 
 	return 0;
 }
@@ -844,7 +844,7 @@ static int labpc_ai_chanlist_invalid(const struct comedi_device *dev,
 			}
 			break;
 		default:
-			rt_printk("ni_labpc: bug! in chanlist check\n");
+			printk("ni_labpc: bug! in chanlist check\n");
 			return 1;
 			break;
 		}
@@ -1082,10 +1082,10 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	aref = CR_AREF(cmd->chanlist[0]);
 
 	/*  make sure board is disabled before setting up aquisition */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	devpriv->command3_bits = 0;
 	devpriv->write_byte(devpriv->command3_bits, dev->iobase + COMMAND3_REG);
@@ -1174,7 +1174,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->command1_bits |= ADC_SCAN_EN_BIT;
 		/* need a brief delay before enabling scan, or scan list will get screwed when you switch
 		 * between scan up to scan down mode - dunno why */
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command1_bits,
 			dev->iobase + COMMAND1_REG);
 	}
@@ -1275,7 +1275,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/*  command2 reg */
 	/*  use 2 cascaded counters for pacing */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits |= CASCADE_BIT;
 	switch (cmd->start_src) {
 	case TRIG_EXT:
@@ -1303,7 +1303,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		return -1;
 	}
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return 0;
 }
@@ -1510,10 +1510,10 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	unsigned long flags;
 
 	/*  disable timed conversions */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~SWTRIG_BIT & ~HWTRIG_BIT & ~PRETRIG_BIT;
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  disable interrupt generation and dma */
 	devpriv->command3_bits = 0;
@@ -1571,7 +1571,7 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			if (devpriv->read_byte(dev->iobase +
 					STATUS1_REG) & DATA_AVAIL_BIT)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (i == timeout) {
 			comedi_error(dev, "timeout");
@@ -1598,10 +1598,10 @@ static int labpc_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  turn off pacing of analog output channel */
 	/* note: hardware bug in daqcard-1200 means pacing cannot
 	 * be independently enabled/disabled for its the two channels */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->command2_bits &= ~DAC_PACED_BIT(channel);
 	devpriv->write_byte(devpriv->command2_bits, dev->iobase + COMMAND2_REG);
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	/*  set range */
 	if (thisboard->register_layout == labpc_1200_layout) {
@@ -1809,12 +1809,12 @@ static void labpc_serial_out(struct comedi_device *dev, unsigned int value,
 			devpriv->command5_bits |= SDATA_BIT;
 		else
 			devpriv->command5_bits &= ~SDATA_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  set clock to load bit */
 		devpriv->command5_bits |= SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 	}
@@ -1830,16 +1830,16 @@ static unsigned int labpc_serial_in(struct comedi_device *dev)
 	for (i = 1; i <= value_width; i++) {
 		/*  set serial clock */
 		devpriv->command5_bits |= SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  clear clock bit */
 		devpriv->command5_bits &= ~SCLOCK_BIT;
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->write_byte(devpriv->command5_bits,
 			dev->iobase + COMMAND5_REG);
 		/*  read bits most significant bit first */
-		comedi_udelay(1);
+		udelay(1);
 		devpriv->status2_bits =
 			devpriv->read_byte(dev->iobase + STATUS2_REG);
 		if (devpriv->status2_bits & EEPROM_OUT_BIT) {
@@ -1858,10 +1858,10 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev, unsigned int ad
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send read instruction */
@@ -1873,7 +1873,7 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev, unsigned int ad
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return value;
@@ -1904,21 +1904,21 @@ static unsigned int labpc_eeprom_write(struct comedi_device *dev,
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send write_enable instruction */
 	labpc_serial_out(dev, write_enable_instruction, write_length);
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send write instruction */
 	devpriv->command5_bits |= EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	labpc_serial_out(dev, write_instruction, write_length);
 	/*  send 8 bit address to write to */
@@ -1926,12 +1926,12 @@ static unsigned int labpc_eeprom_write(struct comedi_device *dev,
 	/*  write value */
 	labpc_serial_out(dev, value, write_length);
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return 0;
@@ -1945,10 +1945,10 @@ static unsigned int labpc_eeprom_read_status(struct comedi_device *dev)
 
 	/*  enable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits |= EEPROM_EN_BIT | EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  send read status instruction */
@@ -1958,7 +1958,7 @@ static unsigned int labpc_eeprom_read_status(struct comedi_device *dev)
 
 	/*  disable read/write to eeprom */
 	devpriv->command5_bits &= ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	return value;
@@ -1975,7 +1975,7 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel,
 	/*  clear caldac load bit and make sure we don't write to eeprom */
 	devpriv->command5_bits &=
 		~CALDAC_LOAD_BIT & ~EEPROM_EN_BIT & ~EEPROM_WRITE_UNPROTECT_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 
 	/*  write 4 bit channel */
@@ -1985,10 +1985,10 @@ static void write_caldac(struct comedi_device *dev, unsigned int channel,
 
 	/*  set and clear caldac bit to load caldac value */
 	devpriv->command5_bits |= CALDAC_LOAD_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 	devpriv->command5_bits &= ~CALDAC_LOAD_BIT;
-	comedi_udelay(1);
+	udelay(1);
 	devpriv->write_byte(devpriv->command5_bits, dev->iobase + COMMAND5_REG);
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 7b0030e853c4..476f30a13d16 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -365,7 +365,7 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
 	switch (reg) {
 	case Interrupt_A_Enable_Register:
 		devpriv->int_a_enable_reg &= ~bit_mask;
@@ -396,13 +396,13 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
 		ni_writeb(devpriv->g0_g1_select_reg, G0_G1_Select);
 		break;
 	default:
-		rt_printk("Warning %s() called with invalid register\n",
+		printk("Warning %s() called with invalid register\n",
 			__func__);
-		rt_printk("reg is %d\n", reg);
+		printk("reg is %d\n", reg);
 		break;
 	}
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
 }
 
 #ifdef PCIDMA
@@ -460,7 +460,7 @@ static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, int mite_ch
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
+	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
 	devpriv->cdio_dma_select_reg &= ~CDO_DMA_Select_Mask;
 	if (mite_channel >= 0) {
 		/*XXX just guessing ni_stc_dma_channel_select_bitfield() returns the right bits,
@@ -472,19 +472,19 @@ static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, int mite_ch
 	}
 	ni_writeb(devpriv->cdio_dma_select_reg, M_Offset_CDIO_DMA_Select);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
+	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
 }
 
 static int ni_request_ai_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->ai_mite_chan);
 	devpriv->ai_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->ai_mite_ring);
 	if (devpriv->ai_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for analog input.");
@@ -492,7 +492,7 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->ai_mite_chan->dir = COMEDI_INPUT;
 	ni_set_ai_dma_channel(dev, devpriv->ai_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -500,12 +500,12 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->ao_mite_chan);
 	devpriv->ao_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->ao_mite_ring);
 	if (devpriv->ao_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for analog outut.");
@@ -513,7 +513,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->ao_mite_chan->dir = COMEDI_OUTPUT;
 	ni_set_ao_dma_channel(dev, devpriv->ao_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -524,13 +524,13 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev,
 	struct mite_channel *mite_chan;
 
 	BUG_ON(gpct_index >= NUM_GPCT);
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->counter_dev->counters[gpct_index].mite_chan);
 	mite_chan =
 		mite_request_channel(devpriv->mite,
 		devpriv->gpct_mite_ring[gpct_index]);
 	if (mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for counter.");
@@ -540,7 +540,7 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev,
 	ni_tio_set_mite_channel(&devpriv->counter_dev->counters[gpct_index],
 		mite_chan);
 	ni_set_gpct_dma_channel(dev, gpct_index, mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -551,12 +551,12 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->cdo_mite_chan);
 	devpriv->cdo_mite_chan =
 		mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring);
 	if (devpriv->cdo_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock,
 			flags);
 		comedi_error(dev,
 			"failed to reserve mite dma channel for correlated digital outut.");
@@ -564,7 +564,7 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev)
 	}
 	devpriv->cdo_mite_chan->dir = COMEDI_OUTPUT;
 	ni_set_cdo_dma_channel(dev, devpriv->cdo_mite_chan->channel);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 	return 0;
 }
@@ -574,13 +574,13 @@ static void ni_release_ai_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan) {
 		ni_set_ai_dma_channel(dev, -1);
 		mite_release_channel(devpriv->ai_mite_chan);
 		devpriv->ai_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -589,13 +589,13 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		ni_set_ao_dma_channel(dev, -1);
 		mite_release_channel(devpriv->ao_mite_chan);
 		devpriv->ao_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -605,7 +605,7 @@ void ni_release_gpct_mite_channel(struct comedi_device *dev, unsigned gpct_index
 	unsigned long flags;
 
 	BUG_ON(gpct_index >= NUM_GPCT);
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->counter_dev->counters[gpct_index].mite_chan) {
 		struct mite_channel *mite_chan =
 			devpriv->counter_dev->counters[gpct_index].mite_chan;
@@ -615,7 +615,7 @@ void ni_release_gpct_mite_channel(struct comedi_device *dev, unsigned gpct_index
 			counters[gpct_index], NULL);
 		mite_release_channel(mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -624,13 +624,13 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev)
 #ifdef PCIDMA
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		ni_set_cdo_dma_channel(dev, -1);
 		mite_release_channel(devpriv->cdo_mite_chan);
 		devpriv->cdo_mite_chan = NULL;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif /*  PCIDMA */
 }
 
@@ -712,20 +712,20 @@ static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data, int
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	ni_writew(data, AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static inline void ni_ao_win_outl(struct comedi_device *dev, uint32_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	ni_writel(data, AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr)
@@ -733,10 +733,10 @@ static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	unsigned short data;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(addr, AO_Window_Address_611x);
 	data = ni_readw(AO_Window_Data_611x);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 	return data;
 }
 
@@ -779,15 +779,14 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 	smp_mb();		/*  make sure dev->attached is checked before handler does anything else. */
 
 	/*  lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 	a_status = devpriv->stc_readw(dev, AI_Status_1_Register);
 	b_status = devpriv->stc_readw(dev, AO_Status_1_Register);
 #ifdef PCIDMA
 	if (mite) {
 		unsigned long flags_too;
 
-		comedi_spin_lock_irqsave(&devpriv->mite_channel_lock,
-			flags_too);
+		spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too);
 		if (devpriv->ai_mite_chan) {
 			ai_mite_status = mite_get_status(devpriv->ai_mite_chan);
 			if (ai_mite_status & CHSR_LINKC)
@@ -804,8 +803,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 					MITE_CHOR(devpriv->ao_mite_chan->
 						channel));
 		}
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
-			flags_too);
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too);
 	}
 #endif
 	ack_a_interrupt(dev, a_status);
@@ -818,7 +816,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d)
 	handle_gpct_interrupt(dev, 1);
 	handle_cdio_interrupt(dev);
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -828,10 +826,10 @@ static void ni_sync_ai_dma(struct comedi_device *dev)
 	struct comedi_subdevice *s = dev->subdevices + NI_AI_SUBDEV;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan)
 		mite_sync_input_dma(devpriv->ai_mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static void mite_handle_b_linkc(struct mite_struct *mite, struct comedi_device * dev)
@@ -839,11 +837,11 @@ static void mite_handle_b_linkc(struct mite_struct *mite, struct comedi_device *
 	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		mite_sync_output_dma(devpriv->ao_mite_chan, s->async);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static int ni_ao_wait_for_dma_load(struct comedi_device *dev)
@@ -858,7 +856,7 @@ static int ni_ao_wait_for_dma_load(struct comedi_device *dev)
 			break;
 		/* if we poll too often, the pci bus activity seems
 		   to slow the dma transfer down */
-		comedi_udelay(10);
+		udelay(10);
 	}
 	if (i == timeout) {
 		comedi_error(dev, "timed out waiting for dma load");
@@ -879,7 +877,7 @@ static void ni_handle_eos(struct comedi_device *dev, struct comedi_subdevice *s)
 			ni_sync_ai_dma(dev);
 			if ((s->async->events & COMEDI_CB_EOS))
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 #else
 		ni_handle_fifo_dregs(dev);
@@ -976,7 +974,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		return;
 
 #ifdef DEBUG_INTERRUPT
-	rt_printk
+	printk
 		("ni_mio_common: interrupt: a_status=%04x ai_mite_status=%08x\n",
 		status, ai_mite_status);
 	ni_mio_print_status_a(status);
@@ -989,7 +987,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 	if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
 			CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
 			CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		rt_printk
+		printk
 			("unknown mite interrupt, ack! (ai_mite_status=%08x)\n",
 			ai_mite_status);
 		/* mite_print_chsr(ai_mite_status); */
@@ -1002,7 +1000,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 	if (status & (AI_Overrun_St | AI_Overflow_St | AI_SC_TC_Error_St |
 			AI_SC_TC_St | AI_START1_St)) {
 		if (status == 0xffff) {
-			rt_printk
+			printk
 				("ni_mio_common: a_status=0xffff.  Card removed?\n");
 			/* we probably aren't even running a command now,
 			 * so it's a good idea to be careful. */
@@ -1015,7 +1013,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		if (status & (AI_Overrun_St | AI_Overflow_St |
 				AI_SC_TC_Error_St)) {
-			rt_printk("ni_mio_common: ai error a_status=%04x\n",
+			printk("ni_mio_common: ai error a_status=%04x\n",
 				status);
 			ni_mio_print_status_a(status);
 
@@ -1031,7 +1029,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 		}
 		if (status & AI_SC_TC_St) {
 #ifdef DEBUG_INTERRUPT
-			rt_printk("ni_mio_common: SC_TC interrupt\n");
+			printk("ni_mio_common: SC_TC interrupt\n");
 #endif
 			if (!devpriv->ai_continuous) {
 				shutdown_ai_command(dev);
@@ -1063,7 +1061,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
 #ifdef DEBUG_INTERRUPT
 	status = devpriv->stc_readw(dev, AI_Status_1_Register);
 	if (status & Interrupt_A_St) {
-		rt_printk
+		printk
 			("handle_a_interrupt: didn't clear interrupt? status=0x%x\n",
 			status);
 	}
@@ -1104,7 +1102,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	struct comedi_subdevice *s = dev->subdevices + NI_AO_SUBDEV;
 	/* unsigned short ack=0; */
 #ifdef DEBUG_INTERRUPT
-	rt_printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n",
+	printk("ni_mio_common: interrupt: b_status=%04x m1_status=%08x\n",
 		b_status, ao_mite_status);
 	ni_mio_print_status_b(b_status);
 #endif
@@ -1118,7 +1116,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
 			CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
 			CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		rt_printk
+		printk
 			("unknown mite interrupt, ack! (ao_mite_status=%08x)\n",
 			ao_mite_status);
 		/* mite_print_chsr(ao_mite_status); */
@@ -1129,7 +1127,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 	if (b_status == 0xffff)
 		return;
 	if (b_status & AO_Overrun_St) {
-		rt_printk
+		printk
 			("ni_mio_common: AO FIFO underrun status=0x%04x status2=0x%04x\n",
 			b_status, devpriv->stc_readw(dev,
 				AO_Status_2_Register));
@@ -1146,7 +1144,7 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned short b_statu
 
 		ret = ni_ao_fifo_half_empty(dev, s);
 		if (!ret) {
-			rt_printk("ni_mio_common: AO buffer underrun\n");
+			printk("ni_mio_common: AO buffer underrun\n");
 			ni_set_bits(dev, Interrupt_B_Enable_Register,
 				AO_FIFO_Interrupt_Enable |
 				AO_Error_Interrupt_Enable, 0);
@@ -1170,13 +1168,13 @@ static void ni_mio_print_status_a(int status)
 {
 	int i;
 
-	rt_printk("A status:");
+	printk("A status:");
 	for (i = 15; i >= 0; i--) {
 		if (status & (1 << i)) {
-			rt_printk(" %s", status_a_strings[i]);
+			printk(" %s", status_a_strings[i]);
 		}
 	}
-	rt_printk("\n");
+	printk("\n");
 }
 #endif
 
@@ -1192,13 +1190,13 @@ static void ni_mio_print_status_b(int status)
 {
 	int i;
 
-	rt_printk("B status:");
+	printk("B status:");
 	for (i = 15; i >= 0; i--) {
 		if (status & (1 << i)) {
-			rt_printk(" %s", status_b_strings[i]);
+			printk(" %s", status_b_strings[i]);
 		}
 	}
-	rt_printk("\n");
+	printk("\n");
 }
 #endif
 
@@ -1383,7 +1381,7 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 	unsigned long flags;
 	int retval = 0;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan) {
 		for (i = 0; i < timeout; i++) {
 			if ((devpriv->stc_readw(dev,
@@ -1392,19 +1390,19 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 				&& mite_bytes_in_transit(devpriv->
 					ai_mite_chan) == 0)
 				break;
-			comedi_udelay(5);
+			udelay(5);
 		}
 		if (i == timeout) {
-			rt_printk
+			printk
 				("ni_mio_common: wait for dma drain timed out\n");
-			rt_printk
+			printk
 				("mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n",
 				mite_bytes_in_transit(devpriv->ai_mite_chan),
 				devpriv->stc_readw(dev, AI_Status_1_Register));
 			retval = -1;
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	ni_sync_ai_dma(dev);
 
@@ -1548,15 +1546,14 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 	retval = ni_request_ai_mite_channel(dev);
 	if (retval)
 		return retval;
-/* rt_printk("comedi_debug: using mite channel %i for ai.\n", devpriv->ai_mite_chan->channel); */
+/* printk("comedi_debug: using mite channel %i for ai.\n", devpriv->ai_mite_chan->channel); */
 
 	/* write alloc the entire buffer */
 	comedi_buf_write_alloc(s->async, s->async->prealloc_bufsz);
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan == NULL)
-	{
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	if (devpriv->ai_mite_chan == NULL) {
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		return -EIO;
 	}
 
@@ -1574,7 +1571,7 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 	};
 	/*start the MITE */
 	mite_dma_arm(devpriv->ai_mite_chan);
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return 0;
 }
@@ -1592,7 +1589,7 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 	/* read alloc the entire buffer */
 	comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz);
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
 		if (boardtype.reg_type & (ni_reg_611x | ni_reg_6713)) {
 			mite_prep_dma(devpriv->ao_mite_chan, 32, 32);
@@ -1604,7 +1601,7 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 		mite_dma_arm(devpriv->ao_mite_chan);
 	} else
 		retval = -EIO;
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return retval;
 }
@@ -1705,7 +1702,7 @@ static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/*  lock to avoid race with interrupt handler */
 	if (in_interrupt() == 0)
-		comedi_spin_lock_irqsave(&dev->spinlock, flags);
+		spin_lock_irqsave(&dev->spinlock, flags);
 #ifndef PCIDMA
 	ni_handle_fifo_dregs(dev);
 #else
@@ -1713,7 +1710,7 @@ static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 #endif
 	count = s->async->buf_write_count - s->async->buf_read_count;
 	if (in_interrupt() == 0)
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return count;
 }
@@ -1736,7 +1733,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 		for (n = 0; n < num_adc_stages_611x; n++) {
 			devpriv->stc_writew(dev, AI_CONVERT_Pulse,
 				AI_Command_1_Register);
-			comedi_udelay(1);
+			udelay(1);
 		}
 		for (n = 0; n < insn->n; n++) {
 			devpriv->stc_writew(dev, AI_CONVERT_Pulse,
@@ -1758,7 +1755,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in 611x ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1780,7 +1777,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in 6143 ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1797,7 +1794,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s
 					break;
 			}
 			if (i == NI_TIMEOUT) {
-				rt_printk
+				printk
 					("ni_mio_common: timeout in ni_ai_insn_read\n");
 				return -ETIME;
 			}
@@ -1825,9 +1822,9 @@ void ni_prime_channelgain_list(struct comedi_device *dev)
 			devpriv->stc_writew(dev, 1, ADC_FIFO_Clear);
 			return;
 		}
-		comedi_udelay(1);
+		udelay(1);
 	}
-	rt_printk("ni_mio_common: timeout loading channel/gain list\n");
+	printk("ni_mio_common: timeout loading channel/gain list\n");
 }
 
 static void ni_m_series_load_channelgain_list(struct comedi_device *dev,
@@ -2844,7 +2841,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 				M_Offset_AO_Reference_Attenuation(chan));
 			break;
 		default:
-			rt_printk("%s: bug! unhandled ao reference voltage\n",
+			printk("%s: bug! unhandled ao reference voltage\n",
 				__func__);
 			break;
 		}
@@ -2856,7 +2853,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 			conf |= MSeries_AO_DAC_Offset_5V_Bits;
 			break;
 		default:
-			rt_printk("%s: bug! unhandled ao offset voltage\n",
+			printk("%s: bug! unhandled ao offset voltage\n",
 				__func__);
 			break;
 		}
@@ -3033,7 +3030,7 @@ static int ni_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	devpriv->stc_writew(dev, devpriv->ao_mode3, AO_Mode_3_Register);
 	/* wait for DACs to be loaded */
 	for (i = 0; i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		if ((devpriv->stc_readw(dev,
 					Joint_Status_2_Register) &
 				AO_TMRDACWRs_In_Progress_St) == 0)
@@ -3440,7 +3437,7 @@ static int ni_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_dio_insn_config() chan=%d io=%d\n",
+	printk("ni_dio_insn_config() chan=%d io=%d\n",
 		CR_CHAN(insn->chanspec), data[0]);
 #endif
 	switch (data[0]) {
@@ -3472,7 +3469,7 @@ static int ni_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]);
+	printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]);
 #endif
 	if (insn->n != 2)
 		return -EINVAL;
@@ -3499,7 +3496,7 @@ static int ni_m_series_dio_insn_config(struct comedi_device *dev,
 	struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_m_series_dio_insn_config() chan=%d io=%d\n",
+	printk("ni_m_series_dio_insn_config() chan=%d io=%d\n",
 		CR_CHAN(insn->chanspec), data[0]);
 #endif
 	switch (data[0]) {
@@ -3529,7 +3526,7 @@ static int ni_m_series_dio_insn_bits(struct comedi_device *dev, struct comedi_su
 	struct comedi_insn *insn, unsigned int *data)
 {
 #ifdef DEBUG_DIO
-	rt_printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0],
+	printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0],
 		data[1]);
 #endif
 	if (insn->n != 2)
@@ -3706,7 +3703,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	comedi_buf_read_alloc(s->async, s->async->prealloc_bufsz);
 
 #ifdef PCIDMA
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		mite_prep_dma(devpriv->cdo_mite_chan, 32, 32);
 		mite_dma_arm(devpriv->cdo_mite_chan);
@@ -3714,7 +3711,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 		comedi_error(dev, "BUG: no cdo mite channel?");
 		retval = -EIO;
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	if (retval < 0)
 		return retval;
 #endif
@@ -3726,7 +3723,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
 	for (i = 0; i < timeout; ++i) {
 		if (ni_readl(M_Offset_CDIO_Status) & CDO_FIFO_Full_Bit)
 			break;
-		comedi_udelay(10);
+		udelay(10);
 	}
 	if (i == timeout) {
 		comedi_error(dev, "dma failed to fill cdo fifo!");
@@ -3765,7 +3762,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev)
 		return;
 	}
 #ifdef PCIDMA
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
 		unsigned cdo_mite_status =
 			mite_get_status(devpriv->cdo_mite_chan);
@@ -3776,17 +3773,17 @@ static void handle_cdio_interrupt(struct comedi_device *dev)
 		}
 		mite_sync_output_dma(devpriv->cdo_mite_chan, s->async);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 #endif
 
 	cdio_status = ni_readl(M_Offset_CDIO_Status);
 	if (cdio_status & (CDO_Overrun_Bit | CDO_Underflow_Bit)) {
-/* rt_printk("cdio error: statux=0x%x\n", cdio_status); */
+/* printk("cdio error: statux=0x%x\n", cdio_status); */
 		ni_writel(CDO_Error_Interrupt_Confirm_Bit, M_Offset_CDIO_Command);	/*  XXX just guessing this is needed and does something useful */
 		s->async->events |= COMEDI_CB_OVERFLOW;
 	}
 	if (cdio_status & CDO_FIFO_Empty_Bit) {
-/* rt_printk("cdio fifo empty\n"); */
+/* printk("cdio fifo empty\n"); */
 		ni_writel(CDO_Empty_FIFO_Interrupt_Enable_Clear_Bit,
 			M_Offset_CDIO_Command);
 /* s->async->events |= COMEDI_CB_EOA; */
@@ -3807,7 +3804,7 @@ static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdev
 	case INSN_CONFIG_SERIAL_CLOCK:
 
 #ifdef DEBUG_DIO
-		rt_printk("SPI serial clock Config cd\n", data[1]);
+		printk("SPI serial clock Config cd\n", data[1]);
 #endif
 		devpriv->serial_hw_mode = 1;
 		devpriv->dio_control |= DIO_HW_Serial_Enable;
@@ -3873,7 +3870,7 @@ static int ni_serial_insn_config(struct comedi_device *dev, struct comedi_subdev
 			err = ni_serial_sw_readwrite8(dev, s, byte_out,
 				&byte_in);
 		} else {
-			rt_printk("ni_serial_insn_config: serial disabled!\n");
+			printk("ni_serial_insn_config: serial disabled!\n");
 			return -EINVAL;
 		}
 		if (err < 0)
@@ -3895,7 +3892,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 	int err = 0, count = 20;
 
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_hw_readwrite8: outputting 0x%x\n", data_out);
+	printk("ni_serial_hw_readwrite8: outputting 0x%x\n", data_out);
 #endif
 
 	devpriv->dio_output &= ~DIO_Serial_Data_Mask;
@@ -3918,9 +3915,9 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 				Joint_Status_1_Register)) &
 		DIO_Serial_IO_In_Progress_St) {
 		/* Delay one bit per loop */
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+		udelay((devpriv->serial_interval_ns + 999) / 1000);
 		if (--count < 0) {
-			rt_printk
+			printk
 				("ni_serial_hw_readwrite8: SPI serial I/O didn't finish in time!\n");
 			err = -ETIME;
 			goto Error;
@@ -3929,12 +3926,12 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subd
 
 	/* Delay for last bit. This delay is absolutely necessary, because
 	   DIO_Serial_IO_In_Progress_St goes high one bit too early. */
-	comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+	udelay((devpriv->serial_interval_ns + 999) / 1000);
 
 	if (data_in != NULL) {
 		*data_in = devpriv->stc_readw(dev, DIO_Serial_Input_Register);
 #ifdef DEBUG_DIO
-		rt_printk("ni_serial_hw_readwrite8: inputted 0x%x\n", *data_in);
+		printk("ni_serial_hw_readwrite8: inputted 0x%x\n", *data_in);
 #endif
 	}
 
@@ -3950,11 +3947,11 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subd
 	unsigned char mask, input = 0;
 
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_sw_readwrite8: outputting 0x%x\n", data_out);
+	printk("ni_serial_sw_readwrite8: outputting 0x%x\n", data_out);
 #endif
 
 	/* Wait for one bit before transfer */
-	comedi_udelay((devpriv->serial_interval_ns + 999) / 1000);
+	udelay((devpriv->serial_interval_ns + 999) / 1000);
 
 	for (mask = 0x80; mask; mask >>= 1) {
 		/* Output current bit; note that we cannot touch s->state
@@ -3973,23 +3970,23 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev, struct comedi_subd
 		devpriv->stc_writew(dev, devpriv->dio_control,
 			DIO_Control_Register);
 
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 2000);
+		udelay((devpriv->serial_interval_ns + 999) / 2000);
 
 		devpriv->dio_control &= ~DIO_Software_Serial_Control;
 		devpriv->stc_writew(dev, devpriv->dio_control,
 			DIO_Control_Register);
 
-		comedi_udelay((devpriv->serial_interval_ns + 999) / 2000);
+		udelay((devpriv->serial_interval_ns + 999) / 2000);
 
 		/* Input current bit */
 		if (devpriv->stc_readw(dev,
 				DIO_Parallel_Input_Register) & DIO_SDIN) {
-/*			rt_printk("DIO_P_I_R: 0x%x\n", devpriv->stc_readw(dev, DIO_Parallel_Input_Register)); */
+/*			printk("DIO_P_I_R: 0x%x\n", devpriv->stc_readw(dev, DIO_Parallel_Input_Register)); */
 			input |= mask;
 		}
 	}
 #ifdef DEBUG_DIO
-	rt_printk("ni_serial_sw_readwrite8: inputted 0x%x\n", input);
+	printk("ni_serial_sw_readwrite8: inputted 0x%x\n", input);
 #endif
 	if (data_in)
 		*data_in = input;
@@ -4103,7 +4100,7 @@ static unsigned ni_gpct_to_stc_register(enum ni_gpct_register reg)
 		stc_register = Interrupt_B_Enable_Register;
 		break;
 	default:
-		rt_printk("%s: unhandled register 0x%x in switch.\n",
+		printk("%s: unhandled register 0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -4928,12 +4925,12 @@ static void ni_write_caldac(struct comedi_device *dev, int addr, int val)
 
 	for (bit = 1 << (bits - 1); bit; bit >>= 1) {
 		ni_writeb(((bit & bitstring) ? 0x02 : 0), Serial_Command);
-		comedi_udelay(1);
+		udelay(1);
 		ni_writeb(1 | ((bit & bitstring) ? 0x02 : 0), Serial_Command);
-		comedi_udelay(1);
+		udelay(1);
 	}
 	ni_writeb(loadbit, Serial_Command);
-	comedi_udelay(1);
+	udelay(1);
 	ni_writeb(0, Serial_Command);
 }
 
@@ -5229,7 +5226,7 @@ static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, unsigned chan)
 		return NI_PFI_OUTPUT_G_GATE0;
 		break;
 	default:
-		rt_printk("%s: bug, unhandled case in switch.\n", __func__);
+		printk("%s: bug, unhandled case in switch.\n", __func__);
 		break;
 	}
 	return 0;
@@ -5323,7 +5320,7 @@ static void ni_rtsi_init(struct comedi_device *dev)
 	/*  Set clock mode to internal */
 	devpriv->clock_and_fout2 = MSeries_RTSI_10MHz_Bit;
 	if (ni_set_master_clock(dev, NI_MIO_INTERNAL_CLOCK, 0) < 0) {
-		rt_printk("ni_set_master_clock failed, bug?");
+		printk("ni_set_master_clock failed, bug?");
 	}
 	/*  default internal lines routing to RTSI bus lines */
 	devpriv->rtsi_trig_a_output_reg =
@@ -5395,7 +5392,7 @@ static int ni_mseries_get_pll_parameters(unsigned reference_period_ns,
 		}
 	}
 	if (best_period_picosec == 0) {
-		rt_printk("%s: bug, failed to find pll parameters\n",
+		printk("%s: bug, failed to find pll parameters\n",
 			__func__);
 		return -EIO;
 	}
@@ -5430,7 +5427,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		period_ns = 100;
 	/*  these limits are somewhat arbitrary, but NI advertises 1 to 20MHz range so we'll use that */
 	if (period_ns < min_period_ns || period_ns > max_period_ns) {
-		rt_printk
+		printk
 			("%s: you must specify an input clock frequency between %i and %i nanosec "
 			"for the phased-lock loop.\n", __func__,
 			min_period_ns, max_period_ns);
@@ -5491,9 +5488,9 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		MSeries_PLL_Divisor_Bits(freq_divider) |
 		MSeries_PLL_Multiplier_Bits(freq_multiplier);
 
-	/* rt_printk("using divider=%i, multiplier=%i for PLL. pll_control_bits = 0x%x\n",
+	/* printk("using divider=%i, multiplier=%i for PLL. pll_control_bits = 0x%x\n",
 	 * freq_divider, freq_multiplier, pll_control_bits); */
-	/* rt_printk("clock_ns=%d\n", devpriv->clock_ns); */
+	/* printk("clock_ns=%d\n", devpriv->clock_ns); */
 	ni_writew(pll_control_bits, M_Offset_PLL_Control);
 	devpriv->clock_source = source;
 	/* it seems to typically take a few hundred microseconds for PLL to lock */
@@ -5504,7 +5501,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, unsigned s
 		udelay(1);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("%s: timed out waiting for PLL to lock to reference clock source %i with period %i ns.\n",
 			__func__, source, period_ns);
 		return -ETIMEDOUT;
@@ -5541,7 +5538,7 @@ static int ni_set_master_clock(struct comedi_device *dev, unsigned source,
 					devpriv->rtsi_trig_direction_reg,
 					RTSI_Trig_Direction_Register);
 				if (period_ns == 0) {
-					rt_printk
+					printk
 						("%s: we don't handle an unspecified clock period correctly yet, returning error.\n",
 						__func__);
 					return -EINVAL;
@@ -5564,7 +5561,7 @@ static int ni_valid_rtsi_output_source(struct comedi_device *dev, unsigned chan,
 			if (source == NI_RTSI_OUTPUT_RTSI_OSC)
 				return 1;
 			else {
-				rt_printk
+				printk
 					("%s: invalid source for channel=%i, channel %i is always the RTSI clock for pre-m-series boards.\n",
 					__func__, chan,
 					old_RTSI_clock_channel);
@@ -5629,7 +5626,7 @@ static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan)
 	} else {
 		if (chan == old_RTSI_clock_channel)
 			return NI_RTSI_OUTPUT_RTSI_OSC;
-		rt_printk("%s: bug! should never get here?\n", __func__);
+		printk("%s: bug! should never get here?\n", __func__);
 		return 0;
 	}
 }
@@ -5724,7 +5721,7 @@ static int cs5529_wait_for_idle(struct comedi_device *dev)
 	}
 /* printk("looped %i times waiting for idle\n", i); */
 	if (i == timeout) {
-		rt_printk("%s: %s: timeout\n", __FILE__, __func__);
+		printk("%s: %s: timeout\n", __FILE__, __func__);
 		return -ETIME;
 	}
 	return 0;
@@ -5743,7 +5740,7 @@ static void cs5529_command(struct comedi_device *dev, unsigned short value)
 	for (i = 0; i < timeout; i++) {
 		if ((ni_ao_win_inw(dev, CAL_ADC_Status_67xx) & CSS_ADC_BUSY))
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 /* printk("looped %i times writing command to cs5529\n", i); */
 	if (i == timeout) {
@@ -5797,12 +5794,12 @@ static int cs5529_do_conversion(struct comedi_device *dev, unsigned short *data)
 	}
 	status = ni_ao_win_inw(dev, CAL_ADC_Status_67xx);
 	if (status & CSS_OSC_DETECT) {
-		rt_printk
+		printk
 			("ni_mio_common: cs5529 conversion error, status CSS_OSC_DETECT\n");
 		return -EIO;
 	}
 	if (status & CSS_OVERRANGE) {
-		rt_printk
+		printk
 			("ni_mio_common: cs5529 conversion error, overrange (ignoring)\n");
 	}
 	if (data) {
@@ -5859,11 +5856,11 @@ static int init_cs5529(struct comedi_device *dev)
 		comedi_error(dev, "timeout or signal in init_cs5529()\n");
 #endif
 #ifdef NI_CS5529_DEBUG
-	rt_printk("config: 0x%x\n", cs5529_config_read(dev,
+	printk("config: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_CONFIG_REGISTER));
-	rt_printk("gain: 0x%x\n", cs5529_config_read(dev,
+	printk("gain: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_GAIN_REGISTER));
-	rt_printk("offset: 0x%x\n", cs5529_config_read(dev,
+	printk("offset: 0x%x\n", cs5529_config_read(dev,
 		CSCMD_OFFSET_REGISTER));
 #endif
 	return 0;
diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
index fe6af0aa3dc7..4d408d410c24 100644
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ b/drivers/staging/comedi/drivers/ni_mio_cs.c
@@ -200,14 +200,14 @@ static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ni_writew(data, addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ni_writew(data, Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
@@ -215,14 +215,14 @@ static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	if (addr < 8) {
 		ret = ni_readw(addr * 2);
 	} else {
 		ni_writew(addr, Window_Address);
 		ret = ni_readw(Window_Data);
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -249,7 +249,7 @@ static int mio_cs_detach(struct comedi_device *dev)
 	/* PCMCIA layer frees the IO region */
 
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	return 0;
@@ -446,7 +446,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	printk(" %s", boardtype.name);
 	dev->board_name = boardtype.name;
 
-	ret = comedi_request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+	ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 				 "ni_mio_cs", dev);
 	if (ret < 0) {
 		printk(" irq not available\n");
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 1d262c132d05..cbc203fd066f 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -422,14 +422,13 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	BUG_ON(devpriv->di_mite_chan);
 	devpriv->di_mite_chan =
 		mite_request_channel_in_range(devpriv->mite,
 		devpriv->di_mite_ring, 1, 2);
 	if (devpriv->di_mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock,
-			flags);
+		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		comedi_error(dev, "failed to reserve mite dma channel.");
 		return -EBUSY;
 	}
@@ -437,7 +436,7 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
 		secondary_DMAChannel_bits(devpriv->di_mite_chan->channel),
 		devpriv->mite->daq_io_addr + DMA_Line_Control_Group1);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 	return 0;
 }
 
@@ -445,7 +444,7 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->di_mite_chan) {
 		mite_dma_disarm(devpriv->di_mite_chan);
 		mite_dma_reset(devpriv->di_mite_chan);
@@ -456,7 +455,7 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
 			devpriv->mite->daq_io_addr + DMA_Line_Control_Group1);
 		mmiowb();
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 }
 
 static int nidio96_8255_cb(int dir, int port, int data, unsigned long iobase)
@@ -514,7 +513,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 	/* printk("buf[0]=%08x\n",*(unsigned int *)async->prealloc_buf); */
 	/* printk("buf[4096]=%08x\n",*(unsigned int *)(async->prealloc_buf+4096)); */
 
-	comedi_spin_lock_irqsave(&devpriv->mite_channel_lock, irq_flags);
+	spin_lock_irqsave(&devpriv->mite_channel_lock, irq_flags);
 	if (devpriv->di_mite_chan)
 		m_status = mite_get_status(devpriv->di_mite_chan);
 #ifdef MITE_DEBUG
@@ -537,7 +536,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 			disable_irq(dev->irq);
 		}
 	}
-	comedi_spin_unlock_irqrestore(&devpriv->mite_channel_lock, irq_flags);
+	spin_unlock_irqrestore(&devpriv->mite_channel_lock, irq_flags);
 
 	while (status & DataLeft) {
 		work++;
@@ -1235,8 +1234,8 @@ static int nidio_attach(struct comedi_device * dev, struct comedi_devconfig * it
 			devpriv->mite->daq_io_addr +
 			Master_DMA_And_Interrupt_Control);
 
-		ret = comedi_request_irq(irq, nidio_interrupt, IRQF_SHARED,
-			"ni_pcidio", dev);
+		ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
+				  "ni_pcidio", dev);
 		if (ret < 0) {
 			printk(" irq not available");
 		}
@@ -1259,7 +1258,7 @@ static int nidio_detach(struct comedi_device * dev)
 	}
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (devpriv) {
 		if (devpriv->di_mite_ring) {
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 17fcdce6657d..1d04b75dec22 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -101,7 +101,7 @@ Bugs:
 
 	need to slow down DAC loading.  I don't trust NI's claim that
 	two writes to the PCI bus slows IO enough.  I would prefer to
-	use comedi_udelay().  Timing specs: (clock)
+	use udelay().  Timing specs: (clock)
 		AD8522		30ns
 		DAC8043		120ns
 		DAC8800		60ns
@@ -1246,10 +1246,10 @@ static void e_series_win_out(struct comedi_device *dev, uint16_t data, int reg)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(reg, Window_Address);
 	ni_writew(data, Window_Data);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 }
 
 static uint16_t e_series_win_in(struct comedi_device *dev, int reg)
@@ -1257,10 +1257,10 @@ static uint16_t e_series_win_in(struct comedi_device *dev, int reg)
 	unsigned long flags;
 	uint16_t ret;
 
-	comedi_spin_lock_irqsave(&devpriv->window_lock, flags);
+	spin_lock_irqsave(&devpriv->window_lock, flags);
 	ni_writew(reg, Window_Address);
 	ret = ni_readw(Window_Data);
-	comedi_spin_unlock_irqrestore(&devpriv->window_lock, flags);
+	spin_unlock_irqrestore(&devpriv->window_lock, flags);
 
 	return ret;
 }
@@ -1349,7 +1349,7 @@ static void m_series_stc_writew(struct comedi_device *dev, uint16_t data, int re
 		offset = M_Offset_AO_FIFO_Clear;
 		break;
 	case DIO_Control_Register:
-		rt_printk
+		printk
 			("%s: FIXME: register 0x%x does not map cleanly on to m-series boards.\n",
 			__func__, reg);
 		return;
@@ -1411,7 +1411,7 @@ static void m_series_stc_writew(struct comedi_device *dev, uint16_t data, int re
 		/* FIXME: DIO_Output_Register (16 bit reg) is replaced by M_Offset_Static_Digital_Output (32 bit)
 		   and M_Offset_SCXI_Serial_Data_Out (8 bit) */
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return;
@@ -1446,7 +1446,7 @@ static uint16_t m_series_stc_readw(struct comedi_device *dev, int reg)
 		offset = M_Offset_G01_Status;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -1487,7 +1487,7 @@ static void m_series_stc_writel(struct comedi_device *dev, uint32_t data, int re
 		offset = M_Offset_G1_Load_B;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return;
@@ -1513,7 +1513,7 @@ static uint32_t m_series_stc_readl(struct comedi_device *dev, int reg)
 		offset = M_Offset_G1_Save;
 		break;
 	default:
-		rt_printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk("%s: bug! unhandled register=0x%x in switch.\n",
 			__func__, reg);
 		BUG();
 		return 0;
@@ -1602,7 +1602,7 @@ static int pcimio_detach(struct comedi_device *dev)
 {
 	mio_common_detach(dev);
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 	if (dev->private) {
 		mite_free_ring(devpriv->ai_mite_ring);
@@ -1679,9 +1679,8 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		printk(" unknown irq (bad)\n");
 	} else {
 		printk(" ( irq = %u )", dev->irq);
-		ret = comedi_request_irq(dev->irq, ni_E_interrupt,
-					 NI_E_IRQ_FLAGS, DRV_NAME,
-					 dev);
+		ret = request_irq(dev->irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
+				  DRV_NAME, dev);
 		if (ret < 0) {
 			printk(" irq not available\n");
 			dev->irq = 0;
diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h
index f97b18181534..fcaedb346c44 100644
--- a/drivers/staging/comedi/drivers/ni_stc.h
+++ b/drivers/staging/comedi/drivers/ni_stc.h
@@ -339,7 +339,7 @@ static inline unsigned RTSI_Output_Bit(unsigned channel, int is_mseries)
 		max_channel = 6;
 	}
 	if (channel > max_channel) {
-		rt_printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
+		printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
 			channel);
 		return 0;
 	}
@@ -1085,7 +1085,7 @@ static inline int M_Offset_Static_AI_Control(int i)
 		0x263,
 	};
 	if (((unsigned)i) >= ARRAY_SIZE(offset)) {
-		rt_printk("%s: invalid channel=%i\n", __func__, i);
+		printk("%s: invalid channel=%i\n", __func__, i);
 		return offset[0];
 	}
 	return offset[i];
@@ -1099,7 +1099,7 @@ static inline int M_Offset_AO_Reference_Attenuation(int channel)
 		0x267
 	};
 	if (((unsigned)channel) >= ARRAY_SIZE(offset)) {
-		rt_printk("%s: invalid channel=%i\n", __func__, channel);
+		printk("%s: invalid channel=%i\n", __func__, channel);
 		return offset[0];
 	}
 	return offset[channel];
@@ -1107,7 +1107,7 @@ static inline int M_Offset_AO_Reference_Attenuation(int channel)
 static inline unsigned M_Offset_PFI_Output_Select(unsigned n)
 {
 	if (n < 1 || n > NUM_PFI_OUTPUT_SELECT_REGS) {
-		rt_printk("%s: invalid pfi output select register=%i\n",
+		printk("%s: invalid pfi output select register=%i\n",
 			__func__, n);
 		return M_Offset_PFI_Output_Select_1;
 	}
@@ -1162,7 +1162,7 @@ static inline unsigned MSeries_PLL_In_Source_Select_RTSI_Bits(unsigned
 	RTSI_channel)
 {
 	if (RTSI_channel > 7) {
-		rt_printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
+		printk("%s: bug, invalid RTSI_channel=%i\n", __func__,
 			RTSI_channel);
 		return 0;
 	}
@@ -1183,7 +1183,7 @@ static inline unsigned MSeries_PLL_Divisor_Bits(unsigned divisor)
 {
 	static const unsigned max_divisor = 0x10;
 	if (divisor < 1 || divisor > max_divisor) {
-		rt_printk("%s: bug, invalid divisor=%i\n", __func__,
+		printk("%s: bug, invalid divisor=%i\n", __func__,
 			divisor);
 		return 0;
 	}
@@ -1193,7 +1193,7 @@ static inline unsigned MSeries_PLL_Multiplier_Bits(unsigned multiplier)
 {
 	static const unsigned max_multiplier = 0x100;
 	if (multiplier < 1 || multiplier > max_multiplier) {
-		rt_printk("%s: bug, invalid multiplier=%i\n", __func__,
+		printk("%s: bug, invalid multiplier=%i\n", __func__,
 			multiplier);
 		return 0;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c
index 2b0441e646dd..785553d0cc9d 100644
--- a/drivers/staging/comedi/drivers/ni_tio.c
+++ b/drivers/staging/comedi/drivers/ni_tio.c
@@ -669,7 +669,7 @@ static unsigned ni_m_series_source_select_bits(unsigned int clock_source)
 		}
 		if (i <= ni_m_series_max_pfi_channel)
 			break;
-		rt_printk("invalid clock source 0x%lx\n",
+		printk("invalid clock source 0x%lx\n",
 			(unsigned long)clock_source);
 		BUG();
 		ni_m_series_clock = 0;
@@ -1273,7 +1273,7 @@ static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index,
 		counter_dev->regs[abz_reg] &= ~mask;
 		counter_dev->regs[abz_reg] |= (source << shift) & mask;
 		write_register(counter, counter_dev->regs[abz_reg], abz_reg);
-/* rt_printk("%s %x %d %d\n", __func__, counter_dev->regs[abz_reg], index, source); */
+/* printk("%s %x %d %d\n", __func__, counter_dev->regs[abz_reg], index, source); */
 		return 0;
 	}
 	return -EINVAL;
diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h
index 850e1ea3ad9f..920dd221da0d 100644
--- a/drivers/staging/comedi/drivers/ni_tio_internal.h
+++ b/drivers/staging/comedi/drivers/ni_tio_internal.h
@@ -728,14 +728,14 @@ static inline void ni_tio_set_bits_transient(struct ni_gpct *counter,
 	unsigned long flags;
 
 	BUG_ON(register_index >= NITIO_Num_Registers);
-	comedi_spin_lock_irqsave(&counter_dev->regs_lock, flags);
+	spin_lock_irqsave(&counter_dev->regs_lock, flags);
 	counter_dev->regs[register_index] &= ~bit_mask;
 	counter_dev->regs[register_index] |= (bit_values & bit_mask);
 	write_register(counter,
 		counter_dev->regs[register_index] | transient_bit_values,
 		register_index);
 	mmiowb();
-	comedi_spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
+	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
 }
 
 /* ni_tio_set_bits( ) is for safely writing to registers whose bits may be
@@ -761,9 +761,9 @@ static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter,
 	unsigned value;
 
 	BUG_ON(register_index >= NITIO_Num_Registers);
-	comedi_spin_lock_irqsave(&counter_dev->regs_lock, flags);
+	spin_lock_irqsave(&counter_dev->regs_lock, flags);
 	value = counter_dev->regs[register_index];
-	comedi_spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
+	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
 	return value;
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index fcf4eb6cdf60..5be1e1a62c0a 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -107,12 +107,12 @@ static int ni_tio_input_inttrig(struct comedi_device *dev, struct comedi_subdevi
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan)
 		mite_dma_arm(counter->mite_chan);
 	else
 		retval = -EIO;
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	if (retval < 0)
 		return retval;
 	retval = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE);
@@ -171,7 +171,7 @@ static int ni_tio_input_cmd(struct ni_gpct *counter, struct comedi_async *async)
 
 static int ni_tio_output_cmd(struct ni_gpct *counter, struct comedi_async *async)
 {
-	rt_printk("ni_tio: output commands not yet implemented.\n");
+	printk("ni_tio: output commands not yet implemented.\n");
 	return -ENOTSUPP;
 
 	counter->mite_chan->dir = COMEDI_OUTPUT;
@@ -213,9 +213,9 @@ int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async)
 	int retval = 0;
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan == NULL) {
-		rt_printk
+		printk
 			("ni_tio: commands only supported with DMA.  Interrupt-driven commands not yet implemented.\n");
 		retval = -EIO;
 	} else {
@@ -228,7 +228,7 @@ int ni_tio_cmd(struct ni_gpct *counter, struct comedi_async *async)
 			}
 		}
 	}
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	return retval;
 }
 
@@ -342,11 +342,11 @@ int ni_tio_cancel(struct ni_gpct *counter)
 	unsigned long flags;
 
 	ni_tio_arm(counter, 0, 0);
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan) {
 		mite_dma_disarm(counter->mite_chan);
 	}
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 	ni_tio_configure_dma(counter, 0, 0);
 
 	ni_tio_set_bits(counter,
@@ -369,7 +369,7 @@ static int should_ack_gate(struct ni_gpct *counter)
 		return 1;
 		break;
 	case ni_gpct_variant_e_series:
-		comedi_spin_lock_irqsave(&counter->lock, flags);
+		spin_lock_irqsave(&counter->lock, flags);
 		{
 			if (counter->mite_chan == NULL ||
 				counter->mite_chan->dir != COMEDI_INPUT ||
@@ -377,7 +377,7 @@ static int should_ack_gate(struct ni_gpct *counter)
 				retval = 1;
 			}
 		}
-		comedi_spin_unlock_irqrestore(&counter->lock, flags);
+		spin_unlock_irqrestore(&counter->lock, flags);
 		break;
 	}
 	return retval;
@@ -439,7 +439,7 @@ void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *gate_error,
 				NITIO_Gxx_Joint_Status2_Reg(counter->
 					counter_index)) &
 			Gi_Permanent_Stale_Bit(counter->counter_index)) {
-			rt_printk("%s: Gi_Permanent_Stale_Data detected.\n",
+			printk("%s: Gi_Permanent_Stale_Data detected.\n",
 				__FUNCTION__);
 			if (perm_stale_data)
 				*perm_stale_data = 1;
@@ -458,7 +458,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 	ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error,
 		&perm_stale_data, NULL);
 	if (gate_error) {
-		rt_printk("%s: Gi_Gate_Error detected.\n", __FUNCTION__);
+		printk("%s: Gi_Gate_Error detected.\n", __FUNCTION__);
 		s->async->events |= COMEDI_CB_OVERFLOW;
 	}
 	if (perm_stale_data) {
@@ -470,16 +470,16 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 		if (read_register(counter,
 				NITIO_Gi_DMA_Status_Reg(counter->
 					counter_index)) & Gi_DRQ_Error_Bit) {
-			rt_printk("%s: Gi_DRQ_Error detected.\n", __FUNCTION__);
+			printk("%s: Gi_DRQ_Error detected.\n", __FUNCTION__);
 			s->async->events |= COMEDI_CB_OVERFLOW;
 		}
 		break;
 	case ni_gpct_variant_e_series:
 		break;
 	}
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	if (counter->mite_chan == NULL) {
-		comedi_spin_unlock_irqrestore(&counter->lock, flags);
+		spin_unlock_irqrestore(&counter->lock, flags);
 		return;
 	}
 	gpct_mite_status = mite_get_status(counter->mite_chan);
@@ -489,7 +489,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *
 			MITE_CHOR(counter->mite_chan->channel));
 	}
 	mite_sync_input_dma(counter->mite_chan, s->async);
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 }
 
 void ni_tio_set_mite_channel(struct ni_gpct *counter,
@@ -497,9 +497,9 @@ void ni_tio_set_mite_channel(struct ni_gpct *counter,
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&counter->lock, flags);
+	spin_lock_irqsave(&counter->lock, flags);
 	counter->mite_chan = mite_chan;
-	comedi_spin_unlock_irqrestore(&counter->lock, flags);
+	spin_unlock_irqrestore(&counter->lock, flags);
 }
 
 static int __init ni_tiocmd_init_module(void)
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index c5bcd641aa13..01faaf95d199 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -269,9 +269,9 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 			hi = inb(dev->iobase + PCL711_AD_HI);
 			if (!(hi & PCL711_DRDY))
 				goto ok;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk("comedi%d: pcl711: A/D timeout\n", dev->minor);
+		printk("comedi%d: pcl711: A/D timeout\n", dev->minor);
 		return -ETIME;
 
 	      ok:
@@ -503,7 +503,7 @@ static int pcl711_detach(struct comedi_device *dev)
 	printk("comedi%d: pcl711: remove\n", dev->minor);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	if (dev->iobase)
 		release_region(dev->iobase, PCL711_SIZE);
@@ -541,7 +541,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EINVAL;
 	}
 	if (irq) {
-		if (comedi_request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) {
+		if (request_irq(irq, pcl711_interrupt, 0, "pcl711", dev)) {
 			printk("unable to allocate irq %u\n", irq);
 			return -EINVAL;
 		} else {
diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c
index b970d3d19144..699daff3035a 100644
--- a/drivers/staging/comedi/drivers/pcl724.c
+++ b/drivers/staging/comedi/drivers/pcl724.c
@@ -155,19 +155,18 @@ static int pcl724_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl724, 0,
-						"pcl724", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl724, 0, "pcl724", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -213,7 +212,7 @@ static int pcl724_detach(struct comedi_device *dev)
 
 #ifdef PCL724_IRQ
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 #endif
 
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index c3ce26b8d793..149e75f0e09c 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -280,19 +280,19 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->first_chan = 2;
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %d is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl818, 0,
+				if (request_irq(irq, interrupt_pcl818, 0,
 						"pcl726", dev)) {
-					rt_printk
+					printk
 						(", unable to allocate IRQ %d, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%d", irq);
+					printk(", irq=%d", irq);
 				}
 			}
 		}
@@ -368,7 +368,7 @@ static int pcl726_detach(struct comedi_device *dev)
 
 #ifdef ACL6126_IRQ
 	if (dev->irq) {
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 #endif
 
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 3812c2a9cb9d..46fad0393e31 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -447,15 +447,15 @@ static int pcl812_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 	setup_range_channel(dev, s, insn->chanspec, 1);	/*  select channel and renge */
 	for (n = 0; n < insn->n; n++) {
 		outb(255, dev->iobase + PCL812_SOFTTRIG);	/* start conversion */
-		comedi_udelay(5);
+		udelay(5);
 		timeout = 50;	/* wait max 50us, it must finish under 33us */
 		while (timeout--) {
 			hi = inb(dev->iobase + PCL812_AD_HI);
 			if (!(hi & PCL812_DRDY))
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
 			dev->minor, dev->board_name, dev->iobase);
 		outb(devpriv->mode_reg_int | 0, dev->iobase + PCL812_MODE);
@@ -481,14 +481,14 @@ static int acl8216_ai_insn_read(struct comedi_device *dev, struct comedi_subdevi
 	setup_range_channel(dev, s, insn->chanspec, 1);	/*  select channel and renge */
 	for (n = 0; n < insn->n; n++) {
 		outb(255, dev->iobase + PCL812_SOFTTRIG);	/* start conversion */
-		comedi_udelay(5);
+		udelay(5);
 		timeout = 50;	/* wait max 50us, it must finish under 33us */
 		while (timeout--) {
 			if (!(inb(dev->iobase + ACL8216_STATUS) & ACL8216_DRDY))
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
 			dev->minor, dev->board_name, dev->iobase);
 		outb(0, dev->iobase + PCL812_MODE);
@@ -581,13 +581,13 @@ static int pcl812_do_insn_bits(struct comedi_device *dev, struct comedi_subdevic
 */
 static void pcl812_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
+	printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
 		cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 #endif
@@ -602,7 +602,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	int tmp, divisor1, divisor2;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
 	pcl812_cmdtest_out(-1, cmd);
 #endif
 	/* step 1: make sure trigger sources are trivially valid */
@@ -639,7 +639,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(1, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
 			err);
 #endif
@@ -681,7 +681,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(2, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
 			err);
 #endif
@@ -739,7 +739,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	if (err) {
 #ifdef PCL812_EXTDEBUG
 		pcl812_cmdtest_out(3, cmd);
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
 			err);
 #endif
@@ -761,7 +761,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 
 	if (err) {
 #ifdef PCL812_EXTDEBUG
-		rt_printk
+		printk
 			("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
 			err);
 #endif
@@ -780,7 +780,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_cmd *cmd = &s->async->cmd;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
 #endif
 
 	if (cmd->start_src != TRIG_NOW)
@@ -892,7 +892,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		release_dma_lock(dma_flags);
 		enable_dma(devpriv->dma);
 #ifdef PCL812_EXTDEBUG
-		rt_printk
+		printk
 			("pcl812 EDBG:   DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
 			devpriv->dma, devpriv->hwdmaptr[0],
 			devpriv->hwdmaptr[1], devpriv->dmabytestomove[0],
@@ -913,7 +913,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
+	printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
 #endif
 
 	return 0;
@@ -939,7 +939,7 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 				err = 0;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 	} else {
 		mask = 0x0fff;
@@ -948,12 +948,12 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 				err = 0;
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 	}
 
 	if (err) {
-		rt_printk
+		printk
 			("comedi%d: pcl812: (%s at 0x%lx) A/D cmd IRQ without DRDY!\n",
 			dev->minor, dev->board_name, dev->iobase);
 		pcl812_ai_cancel(dev, s);
@@ -1019,7 +1019,7 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 	short *ptr;
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
+	printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
 #endif
 	ptr = (short *) devpriv->dmabuf[devpriv->next_dma_buf];
 	len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
@@ -1053,7 +1053,7 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 	transfer_from_dma_buf(dev, s, ptr, bufptr, len);
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
+	printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
 #endif
 	return IRQ_HANDLED;
 }
@@ -1087,7 +1087,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!devpriv->ai_dma)
 		return 0;	/*  poll is valid only for DMA transfer */
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	for (i = 0; i < 10; i++) {
 		top1 = get_dma_residue(devpriv->ai_dma);	/*  where is now DMA */
@@ -1097,7 +1097,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 	if (top1 != top2) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -1105,7 +1105,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	top1 >>= 1;		/*  sample position */
 	top2 = top1 - devpriv->ai_poll_ptr;
 	if (top2 < 1) {		/*  no new samples */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -1115,7 +1115,7 @@ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	devpriv->ai_poll_ptr = top1;	/*  new buffer position */
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -1152,7 +1152,7 @@ static void setup_range_channel(struct comedi_device *dev, struct comedi_subdevi
 	outb(gain_reg, dev->iobase + PCL812_GAIN);	/* select gain */
 
 	if (wait) {
-		comedi_udelay(devpriv->max_812_ai_mode0_rangewait);	/*  XXX this depends on selected range and can be very long for some high gain ranges! */
+		udelay(devpriv->max_812_ai_mode0_rangewait);	/*  XXX this depends on selected range and can be very long for some high gain ranges! */
 	}
 }
 
@@ -1163,12 +1163,12 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 	unsigned int divisor2)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode, divisor1,
+	printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode, divisor1,
 		divisor2);
 #endif
 	outb(0xb4, dev->iobase + PCL812_CTRCTL);
 	outb(0x74, dev->iobase + PCL812_CTRCTL);
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		outb(divisor2 & 0xff, dev->iobase + PCL812_CTR2);
@@ -1177,7 +1177,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 		outb((divisor1 >> 8) & 0xff, dev->iobase + PCL812_CTR1);
 	}
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: start_pacer(...)\n");
+	printk("pcl812 EDBG: END: start_pacer(...)\n");
 #endif
 }
 
@@ -1196,7 +1196,7 @@ static void free_resources(struct comedi_device *dev)
 			free_dma(devpriv->dma);
 	}
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, this_board->io_range);
 }
@@ -1207,7 +1207,7 @@ static void free_resources(struct comedi_device *dev)
 static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
 #endif
 	if (devpriv->ai_dma)
 		disable_dma(devpriv->dma);
@@ -1216,7 +1216,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 	start_pacer(dev, -1, 0, 0);	/*  stop 8254 */
 	outb(0, dev->iobase + PCL812_CLRINT);	/* clear INT request */
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
+	printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
 #endif
 	return 0;
 }
@@ -1227,7 +1227,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static void pcl812_reset(struct comedi_device *dev)
 {
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
+	printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
 #endif
 	outb(0, dev->iobase + PCL812_MUX);
 	outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN);
@@ -1254,12 +1254,12 @@ static void pcl812_reset(struct comedi_device *dev)
 	case boardPCL813:
 	case boardISO813:
 	case boardACL8113:
-		comedi_udelay(5);
+		udelay(5);
 		break;
 	}
-	comedi_udelay(5);
+	udelay(5);
 #ifdef PCL812_EXTDEBUG
-	rt_printk("pcl812 EDBG: END: pcl812_reset(...)\n");
+	printk("pcl812 EDBG: END: pcl812_reset(...)\n");
 #endif
 }
 
@@ -1302,8 +1302,7 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				printk(", IRQ %u is out of allowed range, DISABLING IT", irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl812, 0,
-						"pcl812", dev)) {
+				if (request_irq(irq, interrupt_pcl812, 0, "pcl812", dev)) {
 					printk(", unable to allocate IRQ %u, DISABLING IT", irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
@@ -1600,7 +1599,7 @@ static int pcl812_detach(struct comedi_device *dev)
 {
 
 #ifdef PCL812_EXTDEBUG
-	rt_printk("comedi%d: pcl812: remove\n", dev->minor);
+	printk("comedi%d: pcl812: remove\n", dev->minor);
 #endif
 	free_resources(dev);
 	return 0;
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index d269ac1b5ddc..353cdaf03ed3 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -263,7 +263,7 @@ static int pcl816_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 				outb(0, dev->iobase + PCL816_CLRINT);	/* clear INT (conversion end) flag */
 				break;
 			}
-			comedi_udelay(1);
+			udelay(1);
 		}
 		/*  Return timeout error */
 		if (!timeout) {
@@ -293,7 +293,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
 		if (!(inb(dev->iobase + PCL816_STATUS) &
 				PCL816_STATUS_DRDY_MASK))
 			break;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	if (!timeout) {		/*  timeout, bail error */
 		outb(0, dev->iobase + PCL816_CLRINT);	/* clear INT request */
@@ -449,13 +449,13 @@ static irqreturn_t interrupt_pcl816(int irq, void *d)
 */
 static void pcl816_cmdtest_out(int e, struct comedi_cmd *cmd)
 {
-	rt_printk("pcl816 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
+	printk("pcl816 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e,
 		cmd->start_src, cmd->scan_begin_src, cmd->convert_src);
-	rt_printk("pcl816 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
+	printk("pcl816 e=%d startarg=%d scanarg=%d convarg=%d\n", e,
 		cmd->start_arg, cmd->scan_begin_arg, cmd->convert_arg);
-	rt_printk("pcl816 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
+	printk("pcl816 e=%d stopsrc=%x scanend=%x\n", e, cmd->stop_src,
 		cmd->scan_end_src);
-	rt_printk("pcl816 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
+	printk("pcl816 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e,
 		cmd->stop_arg, cmd->scan_end_arg, cmd->chanlist_len);
 }
 
@@ -468,7 +468,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice
 	int err = 0;
 	int tmp, divisor1, divisor2;
 
-	DEBUG(rt_printk("pcl816 pcl812_ai_cmdtest\n");
+	DEBUG(printk("pcl816 pcl812_ai_cmdtest\n");
 		pcl816_cmdtest_out(-1, cmd););
 
 	/* step 1: make sure trigger sources are trivially valid */
@@ -636,7 +636,7 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!check_and_setup_channel_list(dev, s, cmd->chanlist,
 			cmd->chanlist_len))
 		return -EINVAL;
-	comedi_udelay(1);
+	udelay(1);
 
 	devpriv->ai_act_scan = 0;
 	s->async->cur_chan = 0;
@@ -710,7 +710,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (!devpriv->dma)
 		return 0;	/*  poll is valid only for DMA transfer */
 
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	for (i = 0; i < 20; i++) {
 		top1 = get_dma_residue(devpriv->dma);	/*  where is now DMA */
@@ -719,7 +719,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 			break;
 	}
 	if (top1 != top2) {
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -727,7 +727,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	top1 >>= 1;		/*  sample position */
 	top2 = top1 - devpriv->ai_poll_ptr;
 	if (top2 < 1) {		/*  no new samples */
-		comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+		spin_unlock_irqrestore(&dev->spinlock, flags);
 		return 0;
 	}
 
@@ -736,7 +736,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 		devpriv->ai_poll_ptr, top2);
 
 	devpriv->ai_poll_ptr = top1;	/*  new buffer position */
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 
 	return s->async->buf_write_count - s->async->buf_read_count;
 }
@@ -747,7 +747,7 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 */
 static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
-/* DEBUG(rt_printk("pcl816_ai_cancel()\n");) */
+/* DEBUG(printk("pcl816_ai_cancel()\n");) */
 
 	if (devpriv->irq_blocked > 0) {
 		switch (devpriv->int816_mode) {
@@ -763,7 +763,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		case INT_TYPE_AI1_INT:
 		case INT_TYPE_AI3_INT:
 			outb(inb(dev->iobase + PCL816_CONTROL) & 0x73, dev->iobase + PCL816_CONTROL);	/* Stop A/D */
-			comedi_udelay(1);
+			udelay(1);
 			outb(0, dev->iobase + PCL816_CONTROL);	/* Stop A/D */
 			outb(0xb0, dev->iobase + PCL816_CTRCTL);	/* Stop pacer */
 			outb(0x70, dev->iobase + PCL816_CTRCTL);
@@ -781,7 +781,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		}
 	}
 
-	DEBUG(rt_printk("comedi: pcl816_ai_cancel() successful\n");
+	DEBUG(printk("comedi: pcl816_ai_cancel() successful\n");
 		)
 		return 0;
 }
@@ -793,17 +793,17 @@ static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static int pcl816_check(unsigned long iobase)
 {
 	outb(0x00, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_MUX) != 0x00)
 		return 1;	/* there isn't card */
 	outb(0x55, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_MUX) != 0x55)
 		return 1;	/* there isn't card */
 	outb(0x00, iobase + PCL816_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0x18, iobase + PCL816_CONTROL);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL816_CONTROL) != 0x18)
 		return 1;	/* there isn't card */
 	return 0;		/*  ok, card exist */
@@ -817,10 +817,10 @@ static void pcl816_reset(struct comedi_device *dev)
 {
 /* outb (0, dev->iobase + PCL818_DA_LO);         DAC=0V */
 /* outb (0, dev->iobase + PCL818_DA_HI); */
-/* comedi_udelay (1); */
+/* udelay (1); */
 /* outb (0, dev->iobase + PCL818_DO_HI);        DO=$0000 */
 /* outb (0, dev->iobase + PCL818_DO_LO); */
-/* comedi_udelay (1); */
+/* udelay (1); */
 	outb(0, dev->iobase + PCL816_CONTROL);
 	outb(0, dev->iobase + PCL816_MUX);
 	outb(0, dev->iobase + PCL816_CLRINT);
@@ -841,10 +841,10 @@ start_pacer(struct comedi_device *dev, int mode, unsigned int divisor1,
 	outb(0x32, dev->iobase + PCL816_CTRCTL);
 	outb(0xff, dev->iobase + PCL816_CTR0);
 	outb(0x00, dev->iobase + PCL816_CTR0);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0xb4, dev->iobase + PCL816_CTRCTL);	/*  set counter 2 as mode 3 */
 	outb(0x74, dev->iobase + PCL816_CTRCTL);	/*  set counter 1 as mode 3 */
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		DPRINTK("mode %d, divisor1 %d, divisor2 %d\n", mode, divisor1,
@@ -881,7 +881,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		chansegment[0] = chanlist[0];	/*  first channel is everytime ok */
 		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
 			/*  build part of chanlist */
-			DEBUG(rt_printk("%d. %d %d\n", i, CR_CHAN(chanlist[i]),
+			DEBUG(printk("%d. %d %d\n", i, CR_CHAN(chanlist[i]),
 					CR_RANGE(chanlist[i]));
 				)
 				if (chanlist[0] == chanlist[i])
@@ -890,7 +890,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 				(CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {
 				/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("comedi%d: pcl816: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					dev->minor, i, CR_CHAN(chanlist[i]),
 					nowmustbechan, CR_CHAN(chanlist[0]));
@@ -900,14 +900,14 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		}
 
 		for (i = 0, segpos = 0; i < chanlen; i++) {	/*  check whole chanlist */
-			DEBUG(rt_printk("%d %d=%d %d\n",
+			DEBUG(printk("%d %d=%d %d\n",
 					CR_CHAN(chansegment[i % seglen]),
 					CR_RANGE(chansegment[i % seglen]),
 					CR_CHAN(chanlist[i]),
 					CR_RANGE(chanlist[i]));
 				)
 				if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("comedi%d: pcl816: bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					dev->minor, i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -931,7 +931,7 @@ check_and_setup_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		outb(CR_RANGE(chanlist[0]), dev->iobase + PCL816_RANGE);	/* select gain */
 	}
 
-	comedi_udelay(1);
+	udelay(1);
 
 	outb(devpriv->ai_act_chanlist[0] | (devpriv->ai_act_chanlist[seglen - 1] << 4), dev->iobase + PCL816_MUX);	/* select channel interval to scan */
 
@@ -981,7 +981,7 @@ static int set_rtc_irq_bit(unsigned char bit)
 */
 static void free_resources(struct comedi_device *dev)
 {
-	/* rt_printk("free_resource()\n"); */
+	/* printk("free_resource()\n"); */
 	if (dev->private) {
 		pcl816_ai_cancel(dev, devpriv->sub_ai);
 		pcl816_reset(dev);
@@ -993,7 +993,7 @@ static void free_resources(struct comedi_device *dev)
 			free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
 #ifdef unused
 		if (devpriv->rtc_irq)
-			comedi_free_irq(devpriv->rtc_irq, dev);
+			free_irq(devpriv->rtc_irq, dev);
 		if ((devpriv->dma_rtc) && (RTC_lock == 1)) {
 			if (devpriv->rtc_iobase)
 				release_region(devpriv->rtc_iobase,
@@ -1006,7 +1006,7 @@ static void free_resources(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, this_board->io_range);
-	/* rt_printk("free_resource() end\n"); */
+	/* printk("free_resource() end\n"); */
 }
 
 /*
@@ -1030,14 +1030,14 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		this_board->name, iobase);
 
 	if (!request_region(iobase, this_board->io_range, "pcl816")) {
-		rt_printk("I/O port conflict\n");
+		printk("I/O port conflict\n");
 		return -EIO;
 	}
 
 	dev->iobase = iobase;
 
 	if (pcl816_check(iobase)) {
-		rt_printk(", I cann't detect board. FAIL!\n");
+		printk(", I cann't detect board. FAIL!\n");
 		return -EIO;
 	}
 
@@ -1054,19 +1054,18 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl816, 0,
-						"pcl816", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl816, 0, "pcl816", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -1095,12 +1094,11 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->rtc_iosize = RTC_IO_EXTENT;
 		RTC_lock++;
 #ifdef UNTESTED_CODE
-		if (!comedi_request_irq(RTC_IRQ,
-				interrupt_pcl816_ai_mode13_dma_rtc, 0,
+		if (!request_irq(RTC_IRQ, interrupt_pcl816_ai_mode13_dma_rtc, 0,
 				"pcl816 DMA (RTC)", dev)) {
 			devpriv->dma_rtc = 1;
 			devpriv->rtc_irq = RTC_IRQ;
-			rt_printk(", dma_irq=%u", devpriv->rtc_irq);
+			printk(", dma_irq=%u", devpriv->rtc_irq);
 		} else {
 			RTC_lock--;
 			if (RTC_lock == 0) {
@@ -1131,34 +1129,34 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			goto no_dma;	/* DMA disabled */
 
 		if (((1 << dma) & this_board->DMAbits) == 0) {
-			rt_printk(", DMA is out of allowed range, FAIL!\n");
+			printk(", DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
 		ret = request_dma(dma, "pcl816");
 		if (ret) {
-			rt_printk(", unable to allocate DMA %u, FAIL!\n", dma);
+			printk(", unable to allocate DMA %u, FAIL!\n", dma);
 			return -EBUSY;	/* DMA isn't free */
 		}
 
 		devpriv->dma = dma;
-		rt_printk(", dma=%u", dma);
+		printk(", dma=%u", dma);
 		pages = 2;	/* we need 16KB */
 		devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
 
 		if (!devpriv->dmabuf[0]) {
-			rt_printk(", unable to allocate DMA buffer, FAIL!\n");
+			printk(", unable to allocate DMA buffer, FAIL!\n");
 			/* maybe experiment with try_to_free_pages() will help .... */
 			return -EBUSY;	/* no buffer :-( */
 		}
 		devpriv->dmapages[0] = pages;
 		devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
 		devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE;
-		/* rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
+		/* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
 
 		if (devpriv->dma_rtc == 0) {	/*  we must do duble buff :-( */
 			devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
 			if (!devpriv->dmabuf[1]) {
-				rt_printk
+				printk
 					(", unable to allocate DMA buffer, FAIL!\n");
 				return -EBUSY;
 			}
@@ -1232,7 +1230,7 @@ case COMEDI_SUBD_DO:
 
 	pcl816_reset(dev);
 
-	rt_printk("\n");
+	printk("\n");
 
 	return 0;
 }
@@ -1243,7 +1241,7 @@ case COMEDI_SUBD_DO:
  */
 static int pcl816_detach(struct comedi_device *dev)
 {
-	DEBUG(rt_printk("comedi%d: pcl816: remove\n", dev->minor);
+	DEBUG(printk("comedi%d: pcl816: remove\n", dev->minor);
 		)
 		free_resources(dev);
 #ifdef unused
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index acca36212773..607c71744bfc 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -418,7 +418,7 @@ static int pcl818_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		while (timeout--) {
 			if (inb(dev->iobase + PCL818_STATUS) & 0x10)
 				goto conv_finish;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		comedi_error(dev, "A/D insn timeout");
 		/* clear INT (conversion end) flag */
@@ -524,7 +524,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 	while (timeout--) {
 		if (inb(dev->iobase + PCL818_STATUS) & 0x10)
 			goto conv_finish;
-		comedi_udelay(1);
+		udelay(1);
 	}
 	outb(0, dev->iobase + PCL818_STATUS);	/* clear INT request */
 	comedi_error(dev, "A/D mode1/3 IRQ without DRDY!");
@@ -539,7 +539,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 	outb(0, dev->iobase + PCL818_CLRINT);	/* clear INT request */
 
 	if ((low & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-		rt_printk
+		printk
 			("comedi: A/D mode1/3 IRQ - channel dropout %x!=%x !\n",
 			(low & 0xf),
 			devpriv->act_chanlist[devpriv->act_chanlist_pos]);
@@ -549,7 +549,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 		return IRQ_HANDLED;
 	}
 	if (s->async->cur_chan == 0) {
-		/*  rt_printk("E"); */
+		/*  printk("E"); */
 		devpriv->ai_act_scan--;
 	}
 
@@ -591,7 +591,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 		release_dma_lock(flags);
 		enable_dma(devpriv->dma);
 	}
-	rt_printk("comedi: A/D mode1/3 IRQ \n");
+	printk("comedi: A/D mode1/3 IRQ \n");
 
 	devpriv->dma_runs_to_end--;
 	outb(0, dev->iobase + PCL818_CLRINT);	/* clear INT request */
@@ -602,7 +602,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 
 	for (i = 0; i < len; i++) {
 		if ((ptr[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-			rt_printk
+			printk
 				("comedi: A/D mode1/3 DMA - channel dropout %d(card)!=%d(chanlist) at %d !\n",
 				(ptr[bufptr] & 0xf),
 				devpriv->act_chanlist[devpriv->
@@ -681,19 +681,19 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d)
 
 		if (dmabuf[i] != MAGIC_DMA_WORD) {	/*  DMA overflow! */
 			comedi_error(dev, "A/D mode1/3 DMA buffer overflow!");
-			/* rt_printk("I %d dmabuf[i] %d %d\n",i,dmabuf[i],devpriv->dmasamplsize); */
+			/* printk("I %d dmabuf[i] %d %d\n",i,dmabuf[i],devpriv->dmasamplsize); */
 			pcl818_ai_cancel(dev, s);
 			s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
 			comedi_event(dev, s);
 			return IRQ_HANDLED;
 		}
-		/* rt_printk("r %ld ",ofs_dats); */
+		/* printk("r %ld ",ofs_dats); */
 
 		bufptr = devpriv->last_top_dma;
 
 		for (i = 0; i < ofs_dats; i++) {
 			if ((dmabuf[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-				rt_printk
+				printk
 					("comedi: A/D mode1/3 DMA - channel dropout %d!=%d !\n",
 					(dmabuf[bufptr] & 0xf),
 					devpriv->act_chanlist[devpriv->
@@ -775,7 +775,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 	for (i = 0; i < len; i++) {
 		lo = inb(dev->iobase + PCL818_FI_DATALO);
 		if ((lo & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) {	/*  dropout! */
-			rt_printk
+			printk
 				("comedi: A/D mode1/3 FIFO - channel dropout %d!=%d !\n",
 				(lo & 0xf),
 				devpriv->act_chanlist[devpriv->
@@ -818,7 +818,7 @@ static irqreturn_t interrupt_pcl818(int irq, void *d)
 		comedi_error(dev, "premature interrupt");
 		return IRQ_HANDLED;
 	}
-	/* rt_printk("I\n"); */
+	/* printk("I\n"); */
 
 	if (devpriv->irq_blocked && devpriv->irq_was_now_closed) {
 		if ((devpriv->neverending_ai || (!devpriv->neverending_ai &&
@@ -882,7 +882,7 @@ static void pcl818_ai_mode13dma_int(int mode, struct comedi_device *dev,
 	unsigned int flags;
 	unsigned int bytes;
 
-	rt_printk("mode13dma_int, mode: %d\n", mode);
+	printk("mode13dma_int, mode: %d\n", mode);
 	disable_dma(devpriv->dma);	/*  disable dma */
 	bytes = devpriv->hwdmasize[0];
 	if (!devpriv->neverending_ai) {
@@ -965,7 +965,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	int divisor1, divisor2;
 	unsigned int seglen;
 
-	rt_printk("pcl818_ai_cmd_mode()\n");
+	printk("pcl818_ai_cmd_mode()\n");
 	if ((!dev->irq) && (!devpriv->dma_rtc)) {
 		comedi_error(dev, "IRQ not defined!");
 		return -EINVAL;
@@ -983,7 +983,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	setup_channel_list(dev, s, devpriv->ai_chanlist,
 		devpriv->ai_n_chan, seglen);
 
-	comedi_udelay(1);
+	udelay(1);
 
 	devpriv->ai_act_scan = devpriv->ai_scans;
 	devpriv->ai_act_chan = 0;
@@ -1030,7 +1030,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	case 0:
 		if (!devpriv->usefifo) {
 			/* IRQ */
-			/* rt_printk("IRQ\n"); */
+			/* printk("IRQ\n"); */
 			if (mode == 1) {
 				devpriv->ai_mode = INT_TYPE_AI1_INT;
 				/* Pacer+IRQ */
@@ -1065,7 +1065,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 		break;
 	}
 #endif
-	rt_printk("pcl818_ai_cmd_mode() end\n");
+	printk("pcl818_ai_cmd_mode() end\n");
 	return 0;
 }
 
@@ -1155,7 +1155,7 @@ static void start_pacer(struct comedi_device *dev, int mode, unsigned int diviso
 {
 	outb(0xb4, dev->iobase + PCL818_CTRCTL);
 	outb(0x74, dev->iobase + PCL818_CTRCTL);
-	comedi_udelay(1);
+	udelay(1);
 
 	if (mode == 1) {
 		outb(divisor2 & 0xff, dev->iobase + PCL818_CTR2);
@@ -1188,7 +1188,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 		/*  build part of chanlist */
 		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
 
-			/* rt_printk("%d. %d * %d\n",i,
+			/* printk("%d. %d * %d\n",i,
 			 * CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i]));*/
 
 			/* we detect loop, this must by finish */
@@ -1198,7 +1198,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 			nowmustbechan =
 				(CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
 			if (nowmustbechan != CR_CHAN(chanlist[i])) {	/*  channel list isn't continous :-( */
-				rt_printk
+				printk
 					("comedi%d: pcl818: channel list must be continous! chanlist[%i]=%d but must be %d or %d!\n",
 					dev->minor, i, CR_CHAN(chanlist[i]),
 					nowmustbechan, CR_CHAN(chanlist[0]));
@@ -1210,9 +1210,9 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 
 		/*  check whole chanlist */
 		for (i = 0, segpos = 0; i < n_chan; i++) {
-			/* rt_printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i])); */
+			/* printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i])); */
 			if (chanlist[i] != chansegment[i % seglen]) {
-				rt_printk
+				printk
 					("comedi%d: pcl818: bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
 					dev->minor, i, CR_CHAN(chansegment[i]),
 					CR_RANGE(chansegment[i]),
@@ -1226,7 +1226,7 @@ static int check_channel_list(struct comedi_device *dev, struct comedi_subdevice
 	} else {
 		seglen = 1;
 	}
-	rt_printk("check_channel_list: seglen %d\n", seglen);
+	printk("check_channel_list: seglen %d\n", seglen);
 	return seglen;
 }
 
@@ -1244,7 +1244,7 @@ static void setup_channel_list(struct comedi_device *dev, struct comedi_subdevic
 		outb(CR_RANGE(chanlist[i]), dev->iobase + PCL818_RANGE);	/* select gain */
 	}
 
-	comedi_udelay(1);
+	udelay(1);
 
 	/* select channel interval to scan */
 	outb(devpriv->act_chanlist[0] | (devpriv->act_chanlist[seglen -
@@ -1417,7 +1417,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_cmd *cmd = &s->async->cmd;
 	int retval;
 
-	rt_printk("pcl818_ai_cmd()\n");
+	printk("pcl818_ai_cmd()\n");
 	devpriv->ai_n_chan = cmd->chanlist_len;
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
@@ -1436,7 +1436,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		if (cmd->convert_src == TRIG_TIMER) {	/*  mode 1 */
 			devpriv->ai_timer1 = cmd->convert_arg;
 			retval = pcl818_ai_cmd_mode(1, dev, s);
-			rt_printk("pcl818_ai_cmd() end\n");
+			printk("pcl818_ai_cmd() end\n");
 			return retval;
 		}
 		if (cmd->convert_src == TRIG_EXT) {	/*  mode 3 */
@@ -1454,7 +1454,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	if (devpriv->irq_blocked > 0) {
-		rt_printk("pcl818_ai_cancel()\n");
+		printk("pcl818_ai_cancel()\n");
 		devpriv->irq_was_now_closed = 1;
 
 		switch (devpriv->ai_mode) {
@@ -1482,7 +1482,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 		case INT_TYPE_AO3_INT:
 #endif
 			outb(inb(dev->iobase + PCL818_CONTROL) & 0x73, dev->iobase + PCL818_CONTROL);	/* Stop A/D */
-			comedi_udelay(1);
+			udelay(1);
 			start_pacer(dev, -1, 0, 0);
 			outb(0, dev->iobase + PCL818_AD_LO);
 			inb(dev->iobase + PCL818_AD_LO);
@@ -1504,7 +1504,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 	}
 
       end:
-	rt_printk("pcl818_ai_cancel() end\n");
+	printk("pcl818_ai_cancel() end\n");
 	return 0;
 }
 
@@ -1515,17 +1515,17 @@ static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *
 static int pcl818_check(unsigned long iobase)
 {
 	outb(0x00, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_MUX) != 0x00)
 		return 1;	/* there isn't card */
 	outb(0x55, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_MUX) != 0x55)
 		return 1;	/* there isn't card */
 	outb(0x00, iobase + PCL818_MUX);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0x18, iobase + PCL818_CONTROL);
-	comedi_udelay(1);
+	udelay(1);
 	if (inb(iobase + PCL818_CONTROL) != 0x18)
 		return 1;	/* there isn't card */
 	return 0;		/*  ok, card exist */
@@ -1544,10 +1544,10 @@ static void pcl818_reset(struct comedi_device *dev)
 	}
 	outb(0, dev->iobase + PCL818_DA_LO);	/*  DAC=0V */
 	outb(0, dev->iobase + PCL818_DA_HI);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0, dev->iobase + PCL818_DO_HI);	/*  DO=$0000 */
 	outb(0, dev->iobase + PCL818_DO_LO);
-	comedi_udelay(1);
+	udelay(1);
 	outb(0, dev->iobase + PCL818_CONTROL);
 	outb(0, dev->iobase + PCL818_CNTENABLE);
 	outb(0, dev->iobase + PCL818_MUX);
@@ -1658,7 +1658,7 @@ static int rtc_setfreq_irq(int freq)
 */
 static void free_resources(struct comedi_device *dev)
 {
-	/* rt_printk("free_resource()\n"); */
+	/* printk("free_resource()\n"); */
 	if (dev->private) {
 		pcl818_ai_cancel(dev, devpriv->sub_ai);
 		pcl818_reset(dev);
@@ -1670,7 +1670,7 @@ static void free_resources(struct comedi_device *dev)
 			free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]);
 #ifdef unused
 		if (devpriv->rtc_irq)
-			comedi_free_irq(devpriv->rtc_irq, dev);
+			free_irq(devpriv->rtc_irq, dev);
 		if ((devpriv->dma_rtc) && (RTC_lock == 1)) {
 			if (devpriv->rtc_iobase)
 				release_region(devpriv->rtc_iobase,
@@ -1685,7 +1685,7 @@ static void free_resources(struct comedi_device *dev)
 		free_irq(dev->irq, dev);
 	if (dev->iobase)
 		release_region(dev->iobase, devpriv->io_range);
-	/* rt_printk("free_resource() end\n"); */
+	/* printk("free_resource() end\n"); */
 }
 
 /*
@@ -1717,14 +1717,14 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->usefifo = 1;
 	}
 	if (!request_region(iobase, devpriv->io_range, "pcl818")) {
-		rt_printk("I/O port conflict\n");
+		printk("I/O port conflict\n");
 		return -EIO;
 	}
 
 	dev->iobase = iobase;
 
 	if (pcl818_check(iobase)) {
-		rt_printk(", I can't detect board. FAIL!\n");
+		printk(", I can't detect board. FAIL!\n");
 		return -EIO;
 	}
 
@@ -1736,19 +1736,18 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = it->options[1];
 		if (irq) {	/* we want to use IRQ */
 			if (((1 << irq) & this_board->IRQbits) == 0) {
-				rt_printk
+				printk
 					(", IRQ %u is out of allowed range, DISABLING IT",
 					irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (comedi_request_irq(irq, interrupt_pcl818, 0,
-						"pcl818", dev)) {
-					rt_printk
+				if (request_irq(irq, interrupt_pcl818, 0, "pcl818", dev)) {
+					printk
 						(", unable to allocate IRQ %u, DISABLING IT",
 						irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					rt_printk(", irq=%u", irq);
+					printk(", irq=%u", irq);
 				}
 			}
 		}
@@ -1776,12 +1775,11 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->rtc_iobase = RTC_PORT(0);
 		devpriv->rtc_iosize = RTC_IO_EXTENT;
 		RTC_lock++;
-		if (!comedi_request_irq(RTC_IRQ,
-				interrupt_pcl818_ai_mode13_dma_rtc, 0,
+		if (!request_irq(RTC_IRQ, interrupt_pcl818_ai_mode13_dma_rtc, 0,
 				"pcl818 DMA (RTC)", dev)) {
 			devpriv->dma_rtc = 1;
 			devpriv->rtc_irq = RTC_IRQ;
-			rt_printk(", dma_irq=%u", devpriv->rtc_irq);
+			printk(", dma_irq=%u", devpriv->rtc_irq);
 		} else {
 			RTC_lock--;
 			if (RTC_lock == 0) {
@@ -1806,31 +1804,31 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		if (dma < 1)
 			goto no_dma;	/* DMA disabled */
 		if (((1 << dma) & this_board->DMAbits) == 0) {
-			rt_printk(", DMA is out of allowed range, FAIL!\n");
+			printk(", DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
 		ret = request_dma(dma, "pcl818");
 		if (ret) {
-			rt_printk(", unable to allocate DMA %u, FAIL!\n", dma);
+			printk(", unable to allocate DMA %u, FAIL!\n", dma);
 			return -EBUSY;	/* DMA isn't free */
 		}
 		devpriv->dma = dma;
-		rt_printk(", dma=%u", dma);
+		printk(", dma=%u", dma);
 		pages = 2;	/* we need 16KB */
 		devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
 		if (!devpriv->dmabuf[0]) {
-			rt_printk(", unable to allocate DMA buffer, FAIL!\n");
+			printk(", unable to allocate DMA buffer, FAIL!\n");
 			/* maybe experiment with try_to_free_pages() will help .... */
 			return -EBUSY;	/* no buffer :-( */
 		}
 		devpriv->dmapages[0] = pages;
 		devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
 		devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE;
-		/* rt_printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
+		/* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
 		if (devpriv->dma_rtc == 0) {	/*  we must do duble buff :-( */
 			devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
 			if (!devpriv->dmabuf[1]) {
-				rt_printk
+				printk
 					(", unable to allocate DMA buffer, FAIL!\n");
 				return -EBUSY;
 			}
@@ -1989,7 +1987,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	pcl818_reset(dev);
 
-	rt_printk("\n");
+	printk("\n");
 
 	return 0;
 }
@@ -2000,7 +1998,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
  */
 static int pcl818_detach(struct comedi_device *dev)
 {
-	/*   rt_printk("comedi%d: pcl818: remove\n", dev->minor); */
+	/*   printk("comedi%d: pcl818: remove\n", dev->minor); */
 	free_resources(dev);
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 2ff2fe94b704..55a2d1d0408d 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -364,7 +364,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->iobase + 16 + asic * ASIC_IOSIZE;
 		devpriv->asics[asic].irq = 0;	/* this gets actually set at the end of
 						   this function when we
-						   comedi_request_irqs */
+						   request_irqs */
 		spin_lock_init(&devpriv->asics[asic].spinlock);
 	}
 
@@ -489,12 +489,12 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) {
 		if (irq[asic]
-			&& comedi_request_irq(irq[asic], interrupt_pcmmio,
+			&& request_irq(irq[asic], interrupt_pcmmio,
 				IRQF_SHARED, thisboard->name, dev)) {
 			int i;
 			/* unroll the allocated irqs.. */
 			for (i = asic - 1; i >= 0; --i) {
-				comedi_free_irq(irq[i], dev);
+				free_irq(irq[i], dev);
 				devpriv->asics[i].irq = irq[i] = 0;
 			}
 			irq[asic] = 0;
@@ -536,7 +536,7 @@ static int pcmmio_detach(struct comedi_device *dev)
 
 	for (i = 0; i < MAX_ASICS; ++i) {
 		if (devpriv && devpriv->asics[i].irq)
-			comedi_free_irq(devpriv->asics[i].irq, dev);
+			free_irq(devpriv->asics[i].irq, dev);
 	}
 
 	if (devpriv && devpriv->sprivs)
@@ -778,8 +778,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 			/* it is an interrupt for ASIC #asic */
 			unsigned char int_pend;
 
-			comedi_spin_lock_irqsave(&devpriv->asics[asic].spinlock,
-				flags);
+			spin_lock_irqsave(&devpriv->asics[asic].spinlock, flags);
 
 			int_pend = inb(iobase + REG_INT_PENDING) & 0x07;
 
@@ -811,8 +810,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 				++got1;
 			}
 
-			comedi_spin_unlock_irqrestore(&devpriv->asics[asic].
-				spinlock, flags);
+			spin_unlock_irqrestore(&devpriv->asics[asic].  spinlock, flags);
 
 			if (triggered) {
 				struct comedi_subdevice *s;
@@ -825,9 +823,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 						unsigned long flags;
 						unsigned oldevents;
 
-						comedi_spin_lock_irqsave
-							(&subpriv->dio.intr.
-							spinlock, flags);
+						spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 
 						oldevents = s->async->events;
 
@@ -896,9 +892,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 							}
 						}
 
-						comedi_spin_unlock_irqrestore
-							(&subpriv->dio.intr.
-							spinlock, flags);
+						spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 						if (oldevents !=
 							s->async->events) {
@@ -1001,10 +995,10 @@ static int pcmmio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	if (subpriv->dio.intr.active)
 		pcmmio_stop_intr(dev, s);
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	return 0;
 }
@@ -1022,12 +1016,12 @@ pcmmio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->dio.intr.active) {
 		event = pcmmio_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -1045,7 +1039,7 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->dio.intr.spinlock, flags);
 	subpriv->dio.intr.active = 1;
 
 	/* Set up end of acquisition. */
@@ -1071,7 +1065,7 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		event = pcmmio_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->dio.intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index c28e6dfd0f9c..291b6d963fd9 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -322,7 +322,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->asics[asic].iobase = dev->iobase + asic * ASIC_IOSIZE;
 		devpriv->asics[asic].irq = 0;	/* this gets actually set at the end of
 						   this function when we
-						   comedi_request_irqs */
+						   request_irqs */
 		spin_lock_init(&devpriv->asics[asic].spinlock);
 	}
 
@@ -413,12 +413,12 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) {
 		if (irq[asic]
-			&& comedi_request_irq(irq[asic], interrupt_pcmuio,
+			&& request_irq(irq[asic], interrupt_pcmuio,
 				IRQF_SHARED, thisboard->name, dev)) {
 			int i;
 			/* unroll the allocated irqs.. */
 			for (i = asic - 1; i >= 0; --i) {
-				comedi_free_irq(irq[i], dev);
+				free_irq(irq[i], dev);
 				devpriv->asics[i].irq = irq[i] = 0;
 			}
 			irq[asic] = 0;
@@ -460,7 +460,7 @@ static int pcmuio_detach(struct comedi_device *dev)
 
 	for (i = 0; i < MAX_ASICS; ++i) {
 		if (devpriv->asics[i].irq)
-			comedi_free_irq(devpriv->asics[i].irq, dev);
+			free_irq(devpriv->asics[i].irq, dev);
 	}
 
 	if (devpriv && devpriv->sprivs)
@@ -701,8 +701,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 			/* it is an interrupt for ASIC #asic */
 			unsigned char int_pend;
 
-			comedi_spin_lock_irqsave(&devpriv->asics[asic].spinlock,
-				flags);
+			spin_lock_irqsave(&devpriv->asics[asic].spinlock, flags);
 
 			int_pend = inb(iobase + REG_INT_PENDING) & 0x07;
 
@@ -734,8 +733,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 				++got1;
 			}
 
-			comedi_spin_unlock_irqrestore(&devpriv->asics[asic].
-				spinlock, flags);
+			spin_unlock_irqrestore(&devpriv->asics[asic].spinlock, flags);
 
 			if (triggered) {
 				struct comedi_subdevice *s;
@@ -748,9 +746,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 						unsigned long flags;
 						unsigned oldevents;
 
-						comedi_spin_lock_irqsave
-							(&subpriv->intr.
-							spinlock, flags);
+						spin_lock_irqsave (&subpriv->intr.spinlock, flags);
 
 						oldevents = s->async->events;
 
@@ -816,9 +812,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
 							}
 						}
 
-						comedi_spin_unlock_irqrestore
-							(&subpriv->intr.
-							spinlock, flags);
+						spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 						if (oldevents !=
 							s->async->events) {
@@ -911,10 +905,10 @@ static int pcmuio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	unsigned long flags;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	if (subpriv->intr.active)
 		pcmuio_stop_intr(dev, s);
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	return 0;
 }
@@ -932,12 +926,12 @@ pcmuio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (trignum != 0)
 		return -EINVAL;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	s->async->inttrig = 0;
 	if (subpriv->intr.active) {
 		event = pcmuio_start_intr(dev, s);
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
@@ -955,7 +949,7 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 	int event = 0;
 
-	comedi_spin_lock_irqsave(&subpriv->intr.spinlock, flags);
+	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	subpriv->intr.active = 1;
 
 	/* Set up end of acquisition. */
@@ -981,7 +975,7 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		event = pcmuio_start_intr(dev, s);
 		break;
 	}
-	comedi_spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
+	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
 	if (event) {
 		comedi_event(dev, s);
diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h
index 9231ba802030..e4bbd5dc9a61 100644
--- a/drivers/staging/comedi/drivers/plx9080.h
+++ b/drivers/staging/comedi/drivers/plx9080.h
@@ -399,11 +399,11 @@ static inline int plx9080_abort_dma(void *iobase, unsigned int channel)
 
 	/*  wait to make sure done bit is zero */
 	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) && i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		dma_status = readb(dma_cs_addr);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("plx9080: cancel() timed out waiting for dma %i done clear\n",
 			channel);
 		return -ETIMEDOUT;
@@ -413,11 +413,11 @@ static inline int plx9080_abort_dma(void *iobase, unsigned int channel)
 	/*  wait for dma done bit */
 	dma_status = readb(dma_cs_addr);
 	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) == 0 && i < timeout; i++) {
-		comedi_udelay(1);
+		udelay(1);
 		dma_status = readb(dma_cs_addr);
 	}
 	if (i == timeout) {
-		rt_printk
+		printk
 			("plx9080: cancel() timed out waiting for dma %i done set\n",
 			channel);
 		return -ETIMEDOUT;
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 6af081b04a0c..3536ec5fbfce 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -135,7 +135,7 @@ Configuration options:
 #define RTD_DMA_TIMEOUT	33000	/* 1 msec */
 #else
 /* by delaying, power and electrical noise are reduced somewhat */
-#define WAIT_QUIETLY	comedi_udelay (1)
+#define WAIT_QUIETLY	udelay (1)
 #define RTD_ADC_TIMEOUT	2000	/* in usec */
 #define RTD_DAC_TIMEOUT	2000	/* in usec */
 #define RTD_DMA_TIMEOUT	1000	/* in usec */
@@ -900,7 +900,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* initialize board, per RTD spec */
 	/* also, initialize shadow registers */
 	RtdResetBoard(dev);
-	comedi_udelay(100);	/* needed? */
+	udelay(100);	/* needed? */
 	RtdPlxInterruptWrite(dev, 0);
 	RtdInterruptMask(dev, 0);	/* and sets shadow */
 	RtdInterruptClearMask(dev, ~0);	/* and sets shadow */
@@ -919,7 +919,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* TODO: set user out source ??? */
 
 	/* check if our interrupt is available and get it */
-	ret = comedi_request_irq(devpriv->pci_dev->irq, rtd_interrupt,
+	ret = request_irq(devpriv->pci_dev->irq, rtd_interrupt,
 				 IRQF_SHARED, DRV_NAME, dev);
 
 	if (ret < 0) {
@@ -1032,7 +1032,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		/* disable interrupt controller */
 		RtdPlxInterruptWrite(dev, RtdPlxInterruptRead(dev)
 			& ~(ICS_PLIE | ICS_DMA0_E | ICS_DMA1_E));
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 	}
 
 	/* release all regions that were allocated */
@@ -1111,7 +1111,7 @@ static int rtd_detach(struct comedi_device *dev)
 			/* disable interrupt controller */
 			RtdPlxInterruptWrite(dev, RtdPlxInterruptRead(dev)
 				& ~(ICS_PLIE | ICS_DMA0_E | ICS_DMA1_E));
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 		}
 
 		/* release all regions that were allocated */
@@ -1224,7 +1224,7 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 		unsigned fifo_status;
 		/* trigger conversion */
 		RtdAdcStart(dev);
-		comedi_udelay(1);
+		udelay(1);
 		fifo_status = RtdFifoStatus(dev);
 		if ((fifo_status & FS_ADC_HEMPTY) == 0) {
 			fifo_size = 2 * i;
@@ -1233,13 +1233,13 @@ static int rtd520_probe_fifo_depth(struct comedi_device *dev)
 	}
 	if (i == limit)
 	{
-		rt_printk("\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
+		printk("\ncomedi: %s: failed to probe fifo size.\n", DRV_NAME);
 		return -EIO;
 	}
 	RtdAdcClearFifo(dev);
 	if (fifo_size != 0x400 && fifo_size != 0x2000)
 	{
-		rt_printk("\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
+		printk("\ncomedi: %s: unexpected fifo size of %i, expected 1024 or 8192.\n",
 			DRV_NAME, fifo_size);
 		return -EIO;
 	}
@@ -1386,7 +1386,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 		+ ((channel == 0) ? LCFG_DMACSR0 : LCFG_DMACSR1);
 
 	/*  spinlock for plx dma control/status reg */
-	/* comedi_spin_lock_irqsave( &dev->spinlock, flags ); */
+	/* spin_lock_irqsave( &dev->spinlock, flags ); */
 
 	/*  abort dma transfer if necessary */
 	status = readb(dma_cs_addr);
@@ -1409,7 +1409,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 
 	/* disable channel (required) */
 	writeb(0, dma_cs_addr);
-	comedi_udelay(1);	/* needed?? */
+	udelay(1);	/* needed?? */
 	/* set abort bit for channel */
 	writeb(PLX_DMA_ABORT_BIT, dma_cs_addr);
 
@@ -1427,7 +1427,7 @@ void abort_dma(struct comedi_device *dev, unsigned int channel)
 	}
 
       abortDmaExit:
-	/* comedi_spin_unlock_irqrestore( &dev->spinlock, flags ); */
+	/* spin_unlock_irqrestore( &dev->spinlock, flags ); */
 }
 
 /*
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index 3986459a1645..46b5e3fb6742 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -200,7 +200,7 @@ static int rti800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		 * gets set, and you will have an error. */
 		if (insn->n > 0) {
 			BUG_ON(gain >= ARRAY_SIZE(gaindelay));
-			comedi_udelay(gaindelay[gain]);
+			udelay(gaindelay[gain]);
 		}
 	}
 
@@ -209,16 +209,16 @@ static int rti800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevic
 		for (t = RTI800_TIMEOUT; t; t--) {
 			status = inb(dev->iobase + RTI800_CSR);
 			if (status & RTI800_OVERRUN) {
-				rt_printk("rti800: a/d overrun\n");
+				printk("rti800: a/d overrun\n");
 				outb(0, dev->iobase + RTI800_CLRFLAGS);
 				return -EIO;
 			}
 			if (status & RTI800_DONE)
 				break;
-			comedi_udelay(1);
+			udelay(1);
 		}
 		if (t == 0) {
-			rt_printk("rti800: timeout\n");
+			printk("rti800: timeout\n");
 			return -ETIME;
 		}
 		data[i] = inb(dev->iobase + RTI800_ADCLO);
@@ -338,8 +338,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	irq = it->options[1];
 	if (irq) {
 		printk("( irq = %u )", irq);
-		ret = comedi_request_irq(irq, rti800_interrupt, 0,
-					 "rti800", dev);
+		ret = request_irq(irq, rti800_interrupt, 0, "rti800", dev);
 		if (ret < 0) {
 			printk(" Failed to allocate IRQ\n");
 			return ret;
@@ -455,7 +454,7 @@ static int rti800_detach(struct comedi_device *dev)
 		release_region(dev->iobase, RTI800_SIZE);
 
 	if (dev->irq)
-		comedi_free_irq(dev->irq, dev);
+		free_irq(dev->irq, dev);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index 7a6be1ee8f61..d9509d7a3283 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -850,9 +850,9 @@ static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			}
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("s526: ADC(0x%04x) timeout\n",
+			printk("s526: ADC(0x%04x) timeout\n",
 				inw(ADDR_REG(REG_ISR)));
 			return -ETIMEDOUT;
 		}
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index ff8ec589298c..bebc12bf3891 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -596,8 +596,8 @@ static int s626_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (dev->irq == 0) {
 		printk(" unknown irq (bad)\n");
 	} else {
-		ret = comedi_request_irq(dev->irq, s626_irq_handler,
-					 IRQF_SHARED, "s626", dev);
+		ret = request_irq(dev->irq, s626_irq_handler, IRQF_SHARED,
+				  "s626", dev);
 
 		if (ret < 0) {
 			printk(" irq not available\n");
@@ -987,7 +987,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	if (dev->attached == 0)
 		return IRQ_NONE;
 	/*  lock to avoid race with comedi_poll */
-	comedi_spin_lock_irqsave(&dev->spinlock, flags);
+	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* save interrupt enable register state */
 	irqstatus = readl(devpriv->base_addr + P_IER);
@@ -1264,7 +1264,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 
 	DEBUG("s626_irq_handler: exit interrupt service routine.\n");
 
-	comedi_spin_unlock_irqrestore(&dev->spinlock, flags);
+	spin_unlock_irqrestore(&dev->spinlock, flags);
 	return IRQ_HANDLED;
 }
 
@@ -1291,7 +1291,7 @@ static int s626_detach(struct comedi_device *dev)
 		}
 
 		if (dev->irq)
-			comedi_free_irq(dev->irq, dev);
+			free_irq(dev->irq, dev);
 
 		if (devpriv->base_addr)
 			iounmap(devpriv->base_addr);
@@ -1574,7 +1574,7 @@ static int s626_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice
 	for (n = 0; n < insn->n; n++) {
 
 		/*  Delay 10 microseconds for analog input settling. */
-		comedi_udelay(10);
+		udelay(10);
 
 		/*  Start ADC by pulsing GPIO1 low. */
 		GpioImage = RR7146(P_GPIO);
@@ -1606,7 +1606,7 @@ static int s626_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice
 		 * data value is sometimes set to the previous
 		 * conversion's data value.
 		 */
-		comedi_udelay(4);
+		udelay(4);
 	}
 
 	/* Start a dummy conversion to cause the data from the
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 891126f25099..27ae02be5300 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -63,7 +63,7 @@
 */
 
 #ifdef _DEBUG_
-#define DEBUG(...);        rt_printk(__VA_ARGS__);
+#define DEBUG(...);        printk(__VA_ARGS__);
 #else
 #define DEBUG(...)
 #endif
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 89f97e85eff3..db18b11b9d30 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -223,7 +223,7 @@ static int tty_read(struct file *f, int timeout)
 					result = ch;
 					break;
 				}
-				comedi_udelay(100);
+				udelay(100);
 			}
 		}
 		set_fs(oldfs);
diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c
index b73518129f85..07f580a48206 100644
--- a/drivers/staging/comedi/drivers/skel.c
+++ b/drivers/staging/comedi/drivers/skel.c
@@ -331,9 +331,9 @@ static int skel_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 				break;
 		}
 		if (i == TIMEOUT) {
-			/* rt_printk() should be used instead of printk()
+			/* printk() should be used instead of printk()
 			 * whenever the code can be called from real-time. */
-			rt_printk("timeout\n");
+			printk("timeout\n");
 			return -ETIMEDOUT;
 		}
 
diff --git a/drivers/staging/comedi/drivers/unioxx5.c b/drivers/staging/comedi/drivers/unioxx5.c
index e308f5f89305..96bb15ccccb1 100644
--- a/drivers/staging/comedi/drivers/unioxx5.c
+++ b/drivers/staging/comedi/drivers/unioxx5.c
@@ -311,7 +311,7 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev, int subdev_iob
 			usp->usp_module_type[i] = inb(subdev_iobase + 6);
 
 		printk(" [%d] 0x%02x |", i, usp->usp_module_type[i]);
-		comedi_udelay(1);
+		udelay(1);
 	}
 
 	printk("\n");
diff --git a/drivers/staging/comedi/kcomedilib/data.c b/drivers/staging/comedi/kcomedilib/data.c
index 9797e13e3774..3e5fe2c87092 100644
--- a/drivers/staging/comedi/kcomedilib/data.c
+++ b/drivers/staging/comedi/kcomedilib/data.c
@@ -23,7 +23,7 @@
 
 #include "../comedi.h"
 #include "../comedilib.h"
-#include "../comedidev.h"	/* for comedi_udelay() */
+#include "../comedidev.h"
 
 #include <linux/string.h>
 
@@ -83,7 +83,7 @@ int comedi_data_read_delayed(void *dev, unsigned int subdev,
 	if (retval < 0)
 		return retval;
 
-	comedi_udelay((nano_sec + 999) / 1000);
+	udelay((nano_sec + 999) / 1000);
 
 	return comedi_data_read(dev, subdev, chan, range, aref, data);
 }
diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index a4fa9571c58f..95f0dde8d3e6 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -105,7 +105,7 @@ int comedi_loglevel(int newlevel)
 
 void comedi_perror(const char *message)
 {
-	rt_printk("%s: unknown error\n", message);
+	printk("%s: unknown error\n", message);
 }
 
 char *comedi_strerror(int err)
@@ -208,7 +208,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 				ret = -EINVAL;
 				break;
 			}
-			comedi_udelay(insn->data[0]);
+			udelay(insn->data[0]);
 			ret = 1;
 			break;
 		case INSN_INTTRIG:
@@ -217,19 +217,19 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 				break;
 			}
 			if (insn->subdev >= dev->n_subdevices) {
-				rt_printk("%d not usable subdevice\n",
+				printk("%d not usable subdevice\n",
 					insn->subdev);
 				ret = -EINVAL;
 				break;
 			}
 			s = dev->subdevices + insn->subdev;
 			if (!s->async) {
-				rt_printk("no async\n");
+				printk("no async\n");
 				ret = -EINVAL;
 				break;
 			}
 			if (!s->async->inttrig) {
-				rt_printk("no inttrig\n");
+				printk("no inttrig\n");
 				ret = -EAGAIN;
 				break;
 			}
@@ -249,7 +249,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 		s = dev->subdevices + insn->subdev;
 
 		if (s->type == COMEDI_SUBD_UNUSED) {
-			rt_printk("%d not useable subdevice\n", insn->subdev);
+			printk("%d not useable subdevice\n", insn->subdev);
 			ret = -EIO;
 			goto error;
 		}
@@ -258,7 +258,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 
 		ret = check_chanlist(s, 1, &insn->chanspec);
 		if (ret < 0) {
-			rt_printk("bad chanspec\n");
+			printk("bad chanspec\n");
 			ret = -EINVAL;
 			goto error;
 		}
@@ -295,7 +295,7 @@ int comedi_do_insn(void *d, struct comedi_insn *insn)
 #if 0
 	/* XXX do we want this? -- abbotti #if'ed it out for now. */
 	if (ret != insn->n) {
-		rt_printk("BUG: result of insn != insn.n\n");
+		printk("BUG: result of insn != insn.n\n");
 		ret = -EINVAL;
 		goto error;
 	}
@@ -336,7 +336,7 @@ int comedi_lock(void *d, unsigned int subdevice)
 
 	s = dev->subdevices + subdevice;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 
 	if (s->busy) {
 		ret = -EBUSY;
@@ -348,7 +348,7 @@ int comedi_lock(void *d, unsigned int subdevice)
 		}
 	}
 
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	return ret;
 }
@@ -382,7 +382,7 @@ int comedi_unlock(void *d, unsigned int subdevice)
 
 	async = s->async;
 
-	comedi_spin_lock_irqsave(&s->spin_lock, flags);
+	spin_lock_irqsave(&s->spin_lock, flags);
 
 	if (s->busy) {
 		ret = -EBUSY;
@@ -400,7 +400,7 @@ int comedi_unlock(void *d, unsigned int subdevice)
 		ret = 0;
 	}
 
-	comedi_spin_unlock_irqrestore(&s->spin_lock, flags);
+	spin_unlock_irqrestore(&s->spin_lock, flags);
 
 	return ret;
 }
diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c
index d09f0bba0814..445909e6f334 100644
--- a/drivers/staging/comedi/range.c
+++ b/drivers/staging/comedi/range.c
@@ -130,8 +130,7 @@ int check_chanlist(struct comedi_subdevice *s, int n, unsigned int *chanlist)
 			if (CR_CHAN(chanlist[i]) >= s->n_chan ||
 				CR_RANGE(chanlist[i]) >= s->range_table->length
 				|| aref_invalid(s, chanlist[i])) {
-				rt_printk
-					("bad chanlist[%d]=0x%08x n_chan=%d range length=%d\n",
+				printk("bad chanlist[%d]=0x%08x n_chan=%d range length=%d\n",
 					i, chanlist[i], s->n_chan,
 					s->range_table->length);
 #if 0
@@ -147,13 +146,13 @@ int check_chanlist(struct comedi_subdevice *s, int n, unsigned int *chanlist)
 				CR_RANGE(chanlist[i]) >=
 				s->range_table_list[chan]->length
 				|| aref_invalid(s, chanlist[i])) {
-				rt_printk("bad chanlist[%d]=0x%08x\n", i,
+				printk("bad chanlist[%d]=0x%08x\n", i,
 					chanlist[i]);
 				return -EINVAL;
 			}
 		}
 	} else {
-		rt_printk("comedi: (bug) no range type list!\n");
+		printk("comedi: (bug) no range type list!\n");
 		return -EINVAL;
 	}
 	return 0;