Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

61 files changed, 715 insertions, 446 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1dbf6ddb300d..08b7cc900cae 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -150,8 +150,6 @@ config ARCH_IOP3XX
 
 config ARCH_IXP4XX
 	bool "IXP4xx-based"
-	select DMABOUNCE
-	select PCI
 	help
 	  Support for Intel's IXP4XX (XScale) family of processors.
 
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 0af3772efcb7..ace3fb5835d9 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -38,10 +38,10 @@ static void icedcc_putc(int ch)
 		if (--i < 0)
 			return;
 
-		asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
+		asm volatile ("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
 	} while (status & 2);
 
-	asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch));
+	asm("mcr p14, 0, %0, c1, c0, 0" : : "r" (ch));
 }
 
 #define putc(ch)	icedcc_putc(ch)
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index b324dcac1c56..45fdf4a51a2a 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -95,5 +95,11 @@ int main(void)
   DEFINE(SYS_ERROR0,		0x9f0000);
   BLANK();
   DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
+  DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
+  DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
+  DEFINE(MACHINFO_PHYSIO,	offsetof(struct machine_desc, phys_io));
+  DEFINE(MACHINFO_PGOFFIO,	offsetof(struct machine_desc, io_pg_offst));
+  DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
+  DEFINE(PROCINFO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mmu_flags));
   return 0; 
 }
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index 0bea65864051..adf62e5eaad7 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -20,12 +20,10 @@
 #include <asm/mach-types.h>
 #include <asm/procinfo.h>
 #include <asm/ptrace.h>
+#include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
-#define PROCINFO_INITFUNC       12
-#define MACHINFO_TYPE		0
-
 /*
  * Kernel startup entry point.
  * ---------------------------
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 04b66a9328ef..04f7344e356a 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -24,14 +24,6 @@
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
-#define PROCINFO_MMUFLAGS	8
-#define PROCINFO_INITFUNC	12
-
-#define MACHINFO_TYPE		0
-#define MACHINFO_PHYSIO		4
-#define MACHINFO_PGOFFIO	8
-#define MACHINFO_NAME		12
-
 #define KERNEL_RAM_ADDR	(PAGE_OFFSET + TEXT_OFFSET)
 
 /*
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c
index 9d8331be2b58..12ea58a3b84f 100644
--- a/arch/arm/mach-imx/generic.c
+++ b/arch/arm/mach-imx/generic.c
@@ -195,56 +195,6 @@ void __init imx_set_mmc_info(struct imxmmc_platform_data *info)
 }
 EXPORT_SYMBOL(imx_set_mmc_info);
 
-static struct resource imx_uart1_resources[] = {
-	[0] = {
-		.start	= 0x00206000,
-		.end	= 0x002060FF,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= (UART1_MINT_RX),
-		.end	= (UART1_MINT_RX),
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= (UART1_MINT_TX),
-		.end	= (UART1_MINT_TX),
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device imx_uart1_device = {
-	.name		= "imx-uart",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(imx_uart1_resources),
-	.resource	= imx_uart1_resources,
-};
-
-static struct resource imx_uart2_resources[] = {
-	[0] = {
-		.start	= 0x00207000,
-		.end	= 0x002070FF,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= (UART2_MINT_RX),
-		.end	= (UART2_MINT_RX),
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= (UART2_MINT_TX),
-		.end	= (UART2_MINT_TX),
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device imx_uart2_device = {
-	.name		= "imx-uart",
-	.id		= 1,
-	.num_resources	= ARRAY_SIZE(imx_uart2_resources),
-	.resource	= imx_uart2_resources,
-};
-
 static struct imxfb_mach_info imx_fb_info;
 
 void __init set_imx_fb_info(struct imxfb_mach_info *hard_imx_fb_info)
@@ -283,8 +233,6 @@ static struct platform_device imxfb_device = {
 static struct platform_device *devices[] __initdata = {
 	&imx_mmc_device,
 	&imxfb_device,
-	&imx_uart1_device,
-	&imx_uart2_device,
 };
 
 static struct map_desc imx_io_desc[] __initdata = {
diff --git a/arch/arm/mach-imx/mx1ads.c b/arch/arm/mach-imx/mx1ads.c
index e34d0df90aed..e1f6c0bbe1e7 100644
--- a/arch/arm/mach-imx/mx1ads.c
+++ b/arch/arm/mach-imx/mx1ads.c
@@ -26,6 +26,7 @@
 
 #include <asm/mach/arch.h>
 #include <asm/arch/mmc.h>
+#include <asm/arch/imx-uart.h>
 #include <linux/interrupt.h>
 #include "generic.h"
 
@@ -48,8 +49,70 @@ static struct platform_device cs89x0_device = {
 	.resource	= cs89x0_resources,
 };
 
+static struct imxuart_platform_data uart_pdata = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct resource imx_uart1_resources[] = {
+	[0] = {
+		.start	= 0x00206000,
+		.end	= 0x002060FF,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= (UART1_MINT_RX),
+		.end	= (UART1_MINT_RX),
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= (UART1_MINT_TX),
+		.end	= (UART1_MINT_TX),
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device imx_uart1_device = {
+	.name		= "imx-uart",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(imx_uart1_resources),
+	.resource	= imx_uart1_resources,
+	.dev = {
+		.platform_data = &uart_pdata,
+	}
+};
+
+static struct resource imx_uart2_resources[] = {
+	[0] = {
+		.start	= 0x00207000,
+		.end	= 0x002070FF,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= (UART2_MINT_RX),
+		.end	= (UART2_MINT_RX),
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= (UART2_MINT_TX),
+		.end	= (UART2_MINT_TX),
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device imx_uart2_device = {
+	.name		= "imx-uart",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(imx_uart2_resources),
+	.resource	= imx_uart2_resources,
+	.dev = {
+		.platform_data = &uart_pdata,
+	}
+};
+
 static struct platform_device *devices[] __initdata = {
 	&cs89x0_device,
+	&imx_uart1_device,
+	&imx_uart2_device,
 };
 
 #ifdef CONFIG_MMC_IMX
@@ -75,6 +138,17 @@ mx1ads_init(void)
 	imx_gpio_mode(GPIO_PORTB | GPIO_GIUS | GPIO_IN | 20);
 	imx_set_mmc_info(&mx1ads_mmc_info);
 #endif
+
+	imx_gpio_mode(PC9_PF_UART1_CTS);
+	imx_gpio_mode(PC10_PF_UART1_RTS);
+	imx_gpio_mode(PC11_PF_UART1_TXD);
+	imx_gpio_mode(PC12_PF_UART1_RXD);
+
+	imx_gpio_mode(PB28_PF_UART2_CTS);
+	imx_gpio_mode(PB29_PF_UART2_RTS);
+	imx_gpio_mode(PB30_PF_UART2_TXD);
+	imx_gpio_mode(PB31_PF_UART2_RXD);
+
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }
 
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 5bf50a2a737d..2a39f9e481ad 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -11,6 +11,7 @@ comment "IXP4xx Platforms"
 config MACH_NSLU2
 	bool
 	prompt "Linksys NSLU2"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support Linksys's
 	  NSLU2 NAS device. For more information on this platform,
@@ -18,6 +19,7 @@ config MACH_NSLU2
 
 config ARCH_AVILA
 	bool "Avila"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support the Gateworks
 	  Avila Network Platform. For more information on this platform,
@@ -25,6 +27,7 @@ config ARCH_AVILA
 
 config ARCH_ADI_COYOTE
 	bool "Coyote"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support the ADI 
 	  Engineering Coyote Gateway Reference Platform. For more
@@ -32,6 +35,7 @@ config ARCH_ADI_COYOTE
 
 config ARCH_IXDP425
 	bool "IXDP425"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support Intel's 
 	  IXDP425 Development Platform (Also known as Richfield).  
@@ -39,6 +43,7 @@ config ARCH_IXDP425
 
 config MACH_IXDPG425
 	bool "IXDPG425"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support Intel's
 	  IXDPG425 Development Platform (Also known as Montajade).
@@ -46,6 +51,7 @@ config MACH_IXDPG425
 
 config MACH_IXDP465
 	bool "IXDP465"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support Intel's
 	  IXDP465 Development Platform (Also known as BMP).
@@ -72,6 +78,7 @@ config ARCH_PRPMC1100
 config MACH_NAS100D
 	bool
 	prompt "NAS100D"
+	select PCI
 	help
 	  Say 'Y' here if you want your kernel to support Iomega's
 	  NAS 100d device. For more information on this platform,
@@ -96,6 +103,7 @@ config CPU_IXP46X
 config MACH_GTWX5715
 	bool "Gemtek WX5715 (Linksys WRV54G)"
 	depends on ARCH_IXP4XX
+	select PCI
 	help
 		This board is currently inside the Linksys WRV54G Gateways.
 
@@ -110,11 +118,16 @@ config MACH_GTWX5715
 		"High Speed" UART is n/c (as far as I can tell)
 		20 Pin ARM/Xscale JTAG interface on J2
 
-
 comment "IXP4xx Options"
 
+config DMABOUNCE
+	bool
+	default y
+	depends on PCI
+
 config IXP4XX_INDIRECT_PCI
 	bool "Use indirect PCI memory access"
+	depends on PCI
 	help
           IXP4xx provides two methods of accessing PCI memory space:
 
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 0471044fa179..5a4aaa0e0a09 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -2,8 +2,9 @@
 # Makefile for the linux kernel.
 #
 
-obj-y	+= common.o common-pci.o 
+obj-y	+= common.o
 
+obj-$(CONFIG_PCI)		+= common-pci.o
 obj-$(CONFIG_ARCH_IXDP4XX)	+= ixdp425-pci.o ixdp425-setup.o
 obj-$(CONFIG_MACH_IXDPG425)	+= ixdpg425-pci.o coyote-setup.o
 obj-$(CONFIG_ARCH_ADI_COYOTE)	+= coyote-pci.o coyote-setup.o
diff --git a/arch/arm/mach-pxa/dma.c b/arch/arm/mach-pxa/dma.c
index 458112b21e25..7d8c85486c66 100644
--- a/arch/arm/mach-pxa/dma.c
+++ b/arch/arm/mach-pxa/dma.c
@@ -45,23 +45,16 @@ int pxa_request_dma (char *name, pxa_dma_prio prio,
 
 	local_irq_save(flags);
 
-	/* try grabbing a DMA channel with the requested priority */
-	for (i = prio; i < prio + PXA_DMA_NBCH(prio); i++) {
-		if (!dma_channels[i].name) {
-			found = 1;
-			break;
-		}
-	}
-
-	if (!found) {
-		/* requested prio group is full, try hier priorities */
-		for (i = prio-1; i >= 0; i--) {
+	do {
+		/* try grabbing a DMA channel with the requested priority */
+		pxa_for_each_dma_prio (i, prio) {
 			if (!dma_channels[i].name) {
 				found = 1;
 				break;
 			}
 		}
-	}
+		/* if requested prio group is full, try a hier priority */
+	} while (!found && prio--);
 
 	if (found) {
 		DCSR(i) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 37ff8145b5b5..03486be04193 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -245,7 +245,7 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
 	 */
 	barrier();
 	trigger = fmrx(FPINST2);
-	fpscr = fmrx(FPSCR);
+	orig_fpscr = fpscr = fmrx(FPSCR);
 
  emulate:
 	exceptions = vfp_emulate_instruction(trigger, fpscr, regs);
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 049a25583793..40e5aba3ad3d 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -215,7 +215,7 @@ static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 {
 	struct acpi_table_madt *madt = NULL;
 
-	if (!phys_addr || !size || !cpu_has_apic)
+	if (!phys_addr || !size)
 		return -EINVAL;
 
 	madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
@@ -1102,9 +1102,6 @@ int __init acpi_boot_table_init(void)
 	dmi_check_system(acpi_dmi_table);
 #endif
 
-	if (!cpu_has_apic)
-		return -ENODEV;
-
 	/*
 	 * If acpi_disabled, bail out
 	 * One exception: acpi=ht continues far enough to enumerate LAPICs
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 254cee9f0b7b..013b85df18c6 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -757,10 +757,6 @@ static int __init apic_set_verbosity(char *str)
 		apic_verbosity = APIC_DEBUG;
 	else if (strcmp("verbose", str) == 0)
 		apic_verbosity = APIC_VERBOSE;
-	else
-		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
-				" use apic=verbose or apic=debug\n", str);
-
 	return 1;
 }
 
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 506462ef36a0..fd7eaf7866e0 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -671,7 +671,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
 
 	if (unlikely(current->audit_context)) {
 		if (entryexit)
-			audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
+			audit_syscall_exit(AUDITSC_RESULT(regs->eax),
 						regs->eax);
 		/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
 		 * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
@@ -720,14 +720,13 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
 	ret = is_sysemu;
 out:
 	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(current, AUDIT_ARCH_I386, regs->orig_eax,
+		audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_eax,
 				    regs->ebx, regs->ecx, regs->edx, regs->esi);
 	if (ret == 0)
 		return 0;
 
 	regs->orig_eax = -1; /* force skip of syscall restarting */
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
-				regs->eax);
+		audit_syscall_exit(AUDITSC_RESULT(regs->eax), regs->eax);
 	return 1;
 }
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 80cb3b2d0997..d77e89ac0d54 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -970,8 +970,10 @@ efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
   * not-overlapping, which is the case
   */
 int __init
-e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
+e820_all_mapped(unsigned long s, unsigned long e, unsigned type)
 {
+	u64 start = s;
+	u64 end = e;
 	int i;
 	for (i = 0; i < e820.nr_map; i++) {
 		struct e820entry *ei = &e820.map[i];
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index 5e41ee29c8cf..f1187ddb0d0f 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -279,7 +279,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 {
 	struct cpufreq_freqs *freq = data;
 
-	if (val != CPUFREQ_RESUMECHANGE)
+	if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE)
 		write_seqlock_irq(&xtime_lock);
 	if (!ref_freq) {
 		if (!freq->old){
@@ -312,7 +312,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 	}
 
 end:
-	if (val != CPUFREQ_RESUMECHANGE)
+	if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE)
 		write_sequnlock_irq(&xtime_lock);
 
 	return 0;
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index aee14fafd13d..00e0118e717c 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -312,7 +312,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 
 	/*call audit_syscall_exit since we do not exit via the normal paths */
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(current, AUDITSC_RESULT(eax), eax);
+		audit_syscall_exit(AUDITSC_RESULT(eax), eax);
 
 	__asm__ __volatile__(
 		"movl %0,%%esp\n\t"
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 9887c8787e7a..e61e15e28d8b 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1644,7 +1644,7 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
 			arch = AUDIT_ARCH_IA64;
 		}
 
-		audit_syscall_entry(current, arch, syscall, arg0, arg1, arg2, arg3);
+		audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3);
 	}
 
 }
@@ -1662,7 +1662,7 @@ syscall_trace_leave (long arg0, long arg1, long arg2, long arg3,
 
 		if (success != AUDITSC_SUCCESS)
 			result = -result;
-		audit_syscall_exit(current, success, result);
+		audit_syscall_exit(success, result);
 	}
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE)
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index f3106d0771b0..9b4733c12395 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -483,7 +483,7 @@ static inline int audit_arch(void)
 asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
 {
 	if (unlikely(current->audit_context) && entryexit)
-		audit_syscall_exit(current, AUDITSC_RESULT(regs->regs[2]),
+		audit_syscall_exit(AUDITSC_RESULT(regs->regs[2]),
 		                   regs->regs[2]);
 
 	if (!(current->ptrace & PT_PTRACED))
@@ -507,7 +507,7 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
 	}
  out:
 	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(current, audit_arch(), regs->regs[2],
+		audit_syscall_entry(audit_arch(), regs->regs[2],
 				    regs->regs[4], regs->regs[5],
 				    regs->regs[6], regs->regs[7]);
 }
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 856ef1a832b9..f78866367b70 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -90,15 +90,15 @@ void __kprobes arch_remove_kprobe(struct kprobe *p)
 
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
-	kprobe_opcode_t insn = *p->ainsn.insn;
-
 	regs->msr |= MSR_SE;
 
-	/* single step inline if it is a trap variant */
-	if (is_trap(insn))
-		regs->nip = (unsigned long)p->addr;
-	else
-		regs->nip = (unsigned long)p->ainsn.insn;
+	/*
+	 * On powerpc we should single step on the original
+	 * instruction even if the probed insn is a trap
+	 * variant as values in regs could play a part in
+	 * if the trap is taken or not
+	 */
+	regs->nip = (unsigned long)p->ainsn.insn;
 }
 
 static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 1cb69e8fb0b1..9a07f97f0712 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -885,6 +885,74 @@ void __init unflatten_device_tree(void)
 	DBG(" <- unflatten_device_tree()\n");
 }
 
+/*
+ * ibm,pa-features is a per-cpu property that contains a string of
+ * attribute descriptors, each of which has a 2 byte header plus up
+ * to 254 bytes worth of processor attribute bits.  First header
+ * byte specifies the number of bytes following the header.
+ * Second header byte is an "attribute-specifier" type, of which
+ * zero is the only currently-defined value.
+ * Implementation:  Pass in the byte and bit offset for the feature
+ * that we are interested in.  The function will return -1 if the
+ * pa-features property is missing, or a 1/0 to indicate if the feature
+ * is supported/not supported.  Note that the bit numbers are
+ * big-endian to match the definition in PAPR.
+ */
+static struct ibm_pa_feature {
+	unsigned long	cpu_features;	/* CPU_FTR_xxx bit */
+	unsigned int	cpu_user_ftrs;	/* PPC_FEATURE_xxx bit */
+	unsigned char	pabyte;		/* byte number in ibm,pa-features */
+	unsigned char	pabit;		/* bit number (big-endian) */
+	unsigned char	invert;		/* if 1, pa bit set => clear feature */
+} ibm_pa_features[] __initdata = {
+	{0, PPC_FEATURE_HAS_MMU,	0, 0, 0},
+	{0, PPC_FEATURE_HAS_FPU,	0, 1, 0},
+	{CPU_FTR_SLB, 0,		0, 2, 0},
+	{CPU_FTR_CTRL, 0,		0, 3, 0},
+	{CPU_FTR_NOEXECUTE, 0,		0, 6, 0},
+	{CPU_FTR_NODSISRALIGN, 0,	1, 1, 1},
+	{CPU_FTR_CI_LARGE_PAGE, 0,	1, 2, 0},
+};
+
+static void __init check_cpu_pa_features(unsigned long node)
+{
+	unsigned char *pa_ftrs;
+	unsigned long len, tablelen, i, bit;
+
+	pa_ftrs = of_get_flat_dt_prop(node, "ibm,pa-features", &tablelen);
+	if (pa_ftrs == NULL)
+		return;
+
+	/* find descriptor with type == 0 */
+	for (;;) {
+		if (tablelen < 3)
+			return;
+		len = 2 + pa_ftrs[0];
+		if (tablelen < len)
+			return;		/* descriptor 0 not found */
+		if (pa_ftrs[1] == 0)
+			break;
+		tablelen -= len;
+		pa_ftrs += len;
+	}
+
+	/* loop over bits we know about */
+	for (i = 0; i < ARRAY_SIZE(ibm_pa_features); ++i) {
+		struct ibm_pa_feature *fp = &ibm_pa_features[i];
+
+		if (fp->pabyte >= pa_ftrs[0])
+			continue;
+		bit = (pa_ftrs[2 + fp->pabyte] >> (7 - fp->pabit)) & 1;
+		if (bit ^ fp->invert) {
+			cur_cpu_spec->cpu_features |= fp->cpu_features;
+			cur_cpu_spec->cpu_user_features |= fp->cpu_user_ftrs;
+		} else {
+			cur_cpu_spec->cpu_features &= ~fp->cpu_features;
+			cur_cpu_spec->cpu_user_features &= ~fp->cpu_user_ftrs;
+		}
+	}
+}
+
 static int __init early_init_dt_scan_cpus(unsigned long node,
 					  const char *uname, int depth,
 					  void *data)
@@ -969,6 +1037,8 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
 	}
 #endif /* CONFIG_ALTIVEC */
 
+	check_cpu_pa_features(node);
+
 #ifdef CONFIG_PPC_PSERIES
 	if (nthreads > 1)
 		cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index bcb83574335b..4a677d1bd4ef 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -538,7 +538,7 @@ void do_syscall_trace_enter(struct pt_regs *regs)
 		do_syscall_trace();
 
 	if (unlikely(current->audit_context))
-		audit_syscall_entry(current,
+		audit_syscall_entry(
 #ifdef CONFIG_PPC32
 				    AUDIT_ARCH_PPC,
 #else
@@ -556,8 +556,7 @@ void do_syscall_trace_leave(struct pt_regs *regs)
 #endif
 
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(current,
-				   (regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
+		audit_syscall_exit((regs->ccr&0x1000)?AUDITSC_FAILURE:AUDITSC_SUCCESS,
 				   regs->result);
 
 	if ((test_thread_flag(TIF_SYSCALL_TRACE)
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index ed737cacf92d..5bc2585c8036 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -322,13 +322,31 @@ static void register_nodes(void)
 		}
 	}
 }
+
+int sysfs_add_device_to_node(struct sys_device *dev, int nid)
+{
+	struct node *node = &node_devices[nid];
+	return sysfs_create_link(&node->sysdev.kobj, &dev->kobj,
+			kobject_name(&dev->kobj));
+}
+
+void sysfs_remove_device_from_node(struct sys_device *dev, int nid)
+{
+	struct node *node = &node_devices[nid];
+	sysfs_remove_link(&node->sysdev.kobj, kobject_name(&dev->kobj));
+}
+
 #else
 static void register_nodes(void)
 {
 	return;
 }
+
 #endif
 
+EXPORT_SYMBOL_GPL(sysfs_add_device_to_node);
+EXPORT_SYMBOL_GPL(sysfs_remove_device_from_node);
+
 /* Only valid if CPU is present. */
 static ssize_t show_physical_id(struct sys_device *dev, char *buf)
 {
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 0a335f34974c..092355f37399 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -194,7 +194,7 @@ static int *of_get_associativity(struct device_node *dev)
 /* Returns nid in the range [0..MAX_NUMNODES-1], or -1 if no useful numa
  * info is found.
  */
-static int of_node_to_nid(struct device_node *device)
+static int of_node_to_nid_single(struct device_node *device)
 {
 	int nid = -1;
 	unsigned int *tmp;
@@ -216,6 +216,28 @@ out:
 	return nid;
 }
 
+/* Walk the device tree upwards, looking for an associativity id */
+int of_node_to_nid(struct device_node *device)
+{
+	struct device_node *tmp;
+	int nid = -1;
+
+	of_node_get(device);
+	while (device) {
+		nid = of_node_to_nid_single(device);
+		if (nid != -1)
+			break;
+
+	        tmp = device;
+		device = of_get_parent(tmp);
+		of_node_put(tmp);
+	}
+	of_node_put(device);
+
+	return nid;
+}
+EXPORT_SYMBOL_GPL(of_node_to_nid);
+
 /*
  * In theory, the "ibm,associativity" property may contain multiple
  * associativity lists because a resource may be multiply connected
@@ -300,7 +322,7 @@ static int __cpuinit numa_setup_cpu(unsigned long lcpu)
 		goto out;
 	}
 
-	nid = of_node_to_nid(cpu);
+	nid = of_node_to_nid_single(cpu);
 
 	if (nid < 0 || !node_online(nid))
 		nid = any_online_node(NODE_MASK_ALL);
@@ -393,7 +415,7 @@ static int __init parse_numa_properties(void)
 
 		cpu = find_cpu_node(i);
 		BUG_ON(!cpu);
-		nid = of_node_to_nid(cpu);
+		nid = of_node_to_nid_single(cpu);
 		of_node_put(cpu);
 
 		/*
@@ -437,7 +459,7 @@ new_range:
 		 * have associativity properties.  If none, then
 		 * everything goes to default_nid.
 		 */
-		nid = of_node_to_nid(memory);
+		nid = of_node_to_nid_single(memory);
 		if (nid < 0)
 			nid = default_nid;
 		node_set_online(nid);
@@ -776,7 +798,7 @@ int hot_add_scn_to_nid(unsigned long scn_addr)
 ha_new_range:
 		start = read_n_cells(n_mem_addr_cells, &memcell_buf);
 		size = read_n_cells(n_mem_size_cells, &memcell_buf);
-		nid = of_node_to_nid(memory);
+		nid = of_node_to_nid_single(memory);
 
 		/* Domains not present at boot default to 0 */
 		if (nid < 0 || !node_online(nid))
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index c2a3db8edb0c..6a02d51086c8 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -12,7 +12,8 @@ config SPU_FS
 
 config SPUFS_MMAP
 	bool
-	depends on SPU_FS && SPARSEMEM && !PPC_64K_PAGES
+	depends on SPU_FS && SPARSEMEM
+	select MEMORY_HOTPLUG
 	default y
 
 endmenu
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index dac5d0365fde..6574b22b3cf3 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -29,6 +29,8 @@
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
+#include <linux/mutex.h>
+#include <linux/memory_hotplug.h>
 
 #include <asm/mmu.h>
 #include <asm/processor.h>
@@ -46,6 +48,7 @@
 #include <asm/cputable.h>
 #include <asm/ppc-pci.h>
 #include <asm/irq.h>
+#include <asm/spu.h>
 
 #include "interrupt.h"
 #include "iommu.h"
@@ -69,77 +72,6 @@ static void cell_show_cpuinfo(struct seq_file *m)
 	of_node_put(root);
 }
 
-#ifdef CONFIG_SPARSEMEM
-static int __init find_spu_node_id(struct device_node *spe)
-{
-	unsigned int *id;
-#ifdef CONFIG_NUMA
-	struct device_node *cpu;
-	cpu = spe->parent->parent;
-	id = (unsigned int *)get_property(cpu, "node-id", NULL);
-#else
-	id = NULL;
-#endif
-	return id ? *id : 0;
-}
-
-static void __init cell_spuprop_present(struct device_node *spe,
-				       const char *prop, int early)
-{
-	struct address_prop {
-		unsigned long address;
-		unsigned int len;
-	} __attribute__((packed)) *p;
-	int proplen;
-
-	unsigned long start_pfn, end_pfn, pfn;
-	int node_id;
-
-	p = (void*)get_property(spe, prop, &proplen);
-	WARN_ON(proplen != sizeof (*p));
-
-	node_id = find_spu_node_id(spe);
-
-	start_pfn = p->address >> PAGE_SHIFT;
-	end_pfn = (p->address + p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	/* We need to call memory_present *before* the call to sparse_init,
-	   but we can initialize the page structs only *after* that call.
-	   Thus, we're being called twice. */
-	if (early)
-		memory_present(node_id, start_pfn, end_pfn);
-	else {
-		/* As the pages backing SPU LS and I/O are outside the range
-		   of regular memory, their page structs were not initialized
-		   by free_area_init. Do it here instead. */
-		for (pfn = start_pfn; pfn < end_pfn; pfn++) {
-			struct page *page = pfn_to_page(pfn);
-			set_page_links(page, ZONE_DMA, node_id, pfn);
-			init_page_count(page);
-			reset_page_mapcount(page);
-			SetPageReserved(page);
-			INIT_LIST_HEAD(&page->lru);
-		}
-	}
-}
-
-static void __init cell_spumem_init(int early)
-{
-	struct device_node *node;
-	for (node = of_find_node_by_type(NULL, "spe");
-			node; node = of_find_node_by_type(node, "spe")) {
-		cell_spuprop_present(node, "local-store", early);
-		cell_spuprop_present(node, "problem", early);
-		cell_spuprop_present(node, "priv1", early);
-		cell_spuprop_present(node, "priv2", early);
-	}
-}
-#else
-static void __init cell_spumem_init(int early)
-{
-}
-#endif
-
 static void cell_progress(char *s, unsigned short hex)
 {
 	printk("*** %04x : %s\n", hex, s ? s : "");
@@ -172,8 +104,6 @@ static void __init cell_setup_arch(void)
 #endif
 
 	mmio_nvram_init();
-
-	cell_spumem_init(0);
 }
 
 /*
@@ -189,8 +119,6 @@ static void __init cell_init_early(void)
 
 	ppc64_interrupt_controller = IC_CELL_PIC;
 
-	cell_spumem_init(1);
-
 	DBG(" <- cell_init_early()\n");
 }
 
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index ef47a6239d48..ad141fe8d52d 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -520,8 +520,50 @@ void spu_irq_setaffinity(struct spu *spu, int cpu)
 }
 EXPORT_SYMBOL_GPL(spu_irq_setaffinity);
 
-static void __iomem * __init map_spe_prop(struct device_node *n,
-						 const char *name)
+static int __init find_spu_node_id(struct device_node *spe)
+{
+	unsigned int *id;
+	struct device_node *cpu;
+	cpu = spe->parent->parent;
+	id = (unsigned int *)get_property(cpu, "node-id", NULL);
+	return id ? *id : 0;
+}
+
+static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
+		const char *prop)
+{
+	static DEFINE_MUTEX(add_spumem_mutex);
+
+	struct address_prop {
+		unsigned long address;
+		unsigned int len;
+	} __attribute__((packed)) *p;
+	int proplen;
+
+	unsigned long start_pfn, nr_pages;
+	struct pglist_data *pgdata;
+	struct zone *zone;
+	int ret;
+
+	p = (void*)get_property(spe, prop, &proplen);
+	WARN_ON(proplen != sizeof (*p));
+
+	start_pfn = p->address >> PAGE_SHIFT;
+	nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+	pgdata = NODE_DATA(spu->nid);
+	zone = pgdata->node_zones;
+
+	/* XXX rethink locking here */
+	mutex_lock(&add_spumem_mutex);
+	ret = __add_pages(zone, start_pfn, nr_pages);
+	mutex_unlock(&add_spumem_mutex);
+
+	return ret;
+}
+
+static void __iomem * __init map_spe_prop(struct spu *spu,
+		struct device_node *n, const char *name)
 {
 	struct address_prop {
 		unsigned long address;
@@ -530,6 +572,8 @@ static void __iomem * __init map_spe_prop(struct device_node *n,
 
 	void *p;
 	int proplen;
+	void* ret = NULL;
+	int err = 0;
 
 	p = get_property(n, name, &proplen);
 	if (proplen != sizeof (struct address_prop))
@@ -537,7 +581,14 @@ static void __iomem * __init map_spe_prop(struct device_node *n,
 
 	prop = p;
 
-	return ioremap(prop->address, prop->len);
+	err = cell_spuprop_present(spu, n, name);
+	if (err && (err != -EEXIST))
+		goto out;
+
+	ret = ioremap(prop->address, prop->len);
+
+ out:
+	return ret;
 }
 
 static void spu_unmap(struct spu *spu)
@@ -548,44 +599,45 @@ static void spu_unmap(struct spu *spu)
 	iounmap((u8 __iomem *)spu->local_store);
 }
 
-static int __init spu_map_device(struct spu *spu, struct device_node *spe)
+static int __init spu_map_device(struct spu *spu, struct device_node *node)
 {
 	char *prop;
 	int ret;
 
 	ret = -ENODEV;
-	prop = get_property(spe, "isrc", NULL);
+	prop = get_property(node, "isrc", NULL);
 	if (!prop)
 		goto out;
 	spu->isrc = *(unsigned int *)prop;
 
-	spu->name = get_property(spe, "name", NULL);
+	spu->name = get_property(node, "name", NULL);
 	if (!spu->name)
 		goto out;
 
-	prop = get_property(spe, "local-store", NULL);
+	prop = get_property(node, "local-store", NULL);
 	if (!prop)
 		goto out;
 	spu->local_store_phys = *(unsigned long *)prop;
 
 	/* we use local store as ram, not io memory */
-	spu->local_store = (void __force *)map_spe_prop(spe, "local-store");
+	spu->local_store = (void __force *)
+		map_spe_prop(spu, node, "local-store");
 	if (!spu->local_store)
 		goto out;
 
-	prop = get_property(spe, "problem", NULL);
+	prop = get_property(node, "problem", NULL);
 	if (!prop)
 		goto out_unmap;
 	spu->problem_phys = *(unsigned long *)prop;
 
-	spu->problem= map_spe_prop(spe, "problem");
+	spu->problem= map_spe_prop(spu, node, "problem");
 	if (!spu->problem)
 		goto out_unmap;
 
-	spu->priv1= map_spe_prop(spe, "priv1");
+	spu->priv1= map_spe_prop(spu, node, "priv1");
 	/* priv1 is not available on a hypervisor */
 
-	spu->priv2= map_spe_prop(spe, "priv2");
+	spu->priv2= map_spe_prop(spu, node, "priv2");
 	if (!spu->priv2)
 		goto out_unmap;
 	ret = 0;
@@ -597,17 +649,6 @@ out:
 	return ret;
 }
 
-static int __init find_spu_node_id(struct device_node *spe)
-{
-	unsigned int *id;
-	struct device_node *cpu;
-
-	cpu = spe->parent->parent;
-	id = (unsigned int *)get_property(cpu, "node-id", NULL);
-
-	return id ? *id : 0;
-}
-
 static int __init create_spu(struct device_node *spe)
 {
 	struct spu *spu;
@@ -624,6 +665,10 @@ static int __init create_spu(struct device_node *spe)
 		goto out_free;
 
 	spu->node = find_spu_node_id(spe);
+	spu->nid = of_node_to_nid(spe);
+	if (spu->nid == -1)
+		spu->nid = 0;
+
 	spu->stop_code = 0;
 	spu->slb_replace = 0;
 	spu->mm = NULL;
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index a1bda6f96fd1..40020c65c89e 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -118,7 +118,15 @@ int eeh_send_failure_event (struct device_node *dn,
 {
 	unsigned long flags;
 	struct eeh_event *event;
+	char *location;
 
+	if (!mem_init_done) {
+		printk(KERN_ERR "EEH: event during early boot not handled\n");
+		location = (char *) get_property(dn, "ibm,loc-code", NULL);
+		printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
+		printk(KERN_ERR "EEH: PCI location = %s\n", location);
+		return 1;
+	}
 	event = kmalloc(sizeof(*event), GFP_ATOMIC);
 	if (event == NULL) {
 		printk (KERN_ERR "EEH: out of memory, event not handled\n");
diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c
index 6ce3b842defe..d919dab61347 100644
--- a/arch/ppc/platforms/mpc866ads_setup.c
+++ b/arch/ppc/platforms/mpc866ads_setup.c
@@ -378,7 +378,7 @@ int __init mpc866ads_init(void)
 	ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART);
 #endif
 
-#ifdef CONFIG_SERIAL_CPM_SMCer
+#ifdef CONFIG_SERIAL_CPM_SMC
 	ppc_sys_device_enable(MPC8xx_CPM_SMC2);
 	ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART);
 #endif
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 37dfe33dab73..8f36504075ed 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -734,7 +734,7 @@ asmlinkage void
 syscall_trace(struct pt_regs *regs, int entryexit)
 {
 	if (unlikely(current->audit_context) && entryexit)
-		audit_syscall_exit(current, AUDITSC_RESULT(regs->gprs[2]), regs->gprs[2]);
+		audit_syscall_exit(AUDITSC_RESULT(regs->gprs[2]), regs->gprs[2]);
 
 	if (!test_thread_flag(TIF_SYSCALL_TRACE))
 		goto out;
@@ -761,8 +761,7 @@ syscall_trace(struct pt_regs *regs, int entryexit)
 	}
  out:
 	if (unlikely(current->audit_context) && !entryexit)
-		audit_syscall_entry(current, 
-				    test_thread_flag(TIF_31BIT)?AUDIT_ARCH_S390:AUDIT_ARCH_S390X,
+		audit_syscall_entry(test_thread_flag(TIF_31BIT)?AUDIT_ARCH_S390:AUDIT_ARCH_S390X,
 				    regs->gprs[2], regs->orig_gpr2, regs->gprs[3],
 				    regs->gprs[4], regs->gprs[5]);
 }
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index ae1927e48cfb..d48cfc726b68 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -358,8 +358,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	} else {
                 regs->gprs[14] = (unsigned long)
 			frame->retcode | PSW_ADDR_AMODE;
-		err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
-	                          (u16 __user *)(frame->retcode));
+		if (__put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
+			       (u16 __user *)(frame->retcode)))
+			goto give_sigsegv;
 	}
 
 	/* Set up backchain. */
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index db8faa75f94d..6e1135cc03b0 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -23,7 +23,7 @@ sys_call_table:
 /*10*/  .long sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod
 /*15*/	.long sys_chmod, sys_lchown16, sparc_brk, sys_nis_syscall, sys_lseek
 /*20*/	.long sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
-/*25*/	.long sys_time, sys_ptrace, sys_alarm, sys_sigaltstack, sys_pause
+/*25*/	.long sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_pause
 /*30*/	.long sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice
 /*35*/	.long sys_chown, sys_sync, sys_kill, sys_newstat, sys_sendfile
 /*40*/	.long sys_newlstat, sys_dup, sys_pipe, sys_times, sys_getuid
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 49e6dedd027d..d31975e6d6f6 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -653,7 +653,7 @@ asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
 		if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
 			result = AUDITSC_FAILURE;
 
-		audit_syscall_exit(current, result, regs->u_regs[UREG_I0]);
+		audit_syscall_exit(result, regs->u_regs[UREG_I0]);
 	}
 
 	if (!(current->ptrace & PT_PTRACED))
@@ -677,8 +677,7 @@ asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
 
 out:
 	if (unlikely(current->audit_context) && !syscall_exit_p)
-		audit_syscall_entry(current,
-				    (test_thread_flag(TIF_32BIT) ?
+		audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
 				     AUDIT_ARCH_SPARC :
 				     AUDIT_ARCH_SPARC64),
 				    regs->u_regs[UREG_G1],
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index f9b75760163c..bdf1f4d02e3f 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -139,6 +139,7 @@ SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
 SIGN2(sys32_splice, sys_splice, %o0, %o1)
 SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
 SIGN2(sys32_tee, sys_tee, %o0, %o1)
+SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 62672cd92eca..d4b39cd30310 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -25,7 +25,7 @@ sys_call_table32:
 /*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys32_chown16, sys32_mknod
 /*15*/	.word sys_chmod, sys32_lchown16, sparc_brk, sys32_perfctr, sys32_lseek
 /*20*/	.word sys_getpid, sys_capget, sys_capset, sys32_setuid16, sys32_getuid16
-/*25*/	.word compat_sys_time, sys_ptrace, sys_alarm, sys32_sigaltstack, sys32_pause
+/*25*/	.word sys32_vmsplice, sys_ptrace, sys_alarm, sys32_sigaltstack, sys32_pause
 /*30*/	.word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
 	.word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile
 /*40*/	.word compat_sys_newlstat, sys_dup, sys_pipe, compat_sys_times, sys_getuid
@@ -94,7 +94,7 @@ sys_call_table:
 /*10*/  .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod
 /*15*/	.word sys_chmod, sys_lchown, sparc_brk, sys_perfctr, sys_lseek
 /*20*/	.word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid
-/*25*/	.word sys_nis_syscall, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall
+/*25*/	.word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall
 /*30*/	.word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice
 	.word sys_nis_syscall, sys_sync, sys_kill, sys_newstat, sys_sendfile64
 /*40*/	.word sys_newlstat, sys_dup, sys_pipe, sys_times, sys_nis_syscall
diff --git a/arch/sparc64/mm/tlb.c b/arch/sparc64/mm/tlb.c
index a079cf42505e..3f10fc921b00 100644
--- a/arch/sparc64/mm/tlb.c
+++ b/arch/sparc64/mm/tlb.c
@@ -8,6 +8,7 @@
 #include <linux/percpu.h>
 #include <linux/mm.h>
 #include <linux/swap.h>
+#include <linux/preempt.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -24,6 +25,8 @@ void flush_tlb_pending(void)
 {
 	struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
 
+	preempt_disable();
+
 	if (mp->tlb_nr) {
 		flush_tsb_user(mp);
 
@@ -38,6 +41,8 @@ void flush_tlb_pending(void)
 		}
 		mp->tlb_nr = 0;
 	}
+
+	preempt_enable();
 }
 
 void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig)
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 05fbb20636cb..76e85bbaea55 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -57,20 +57,6 @@ config STATIC_LINK
 	chroot, and you disable CONFIG_MODE_TT, you probably want to say Y
 	here.
 
-config HOST_2G_2G
-	bool "2G/2G host address space split"
-	default n
-	depends on MODE_TT
-	help
-	This is needed when the host on which you run has a 2G/2G memory
-	split, instead of the customary 3G/1G.
-
-	Note that to enable such a host
-	configuration, which makes sense only in some cases, you need special
-	host patches.
-
-	So, if you do not know what to do here, say 'N'.
-
 config KERNEL_HALF_GIGS
 	int "Kernel address space size (in .5G units)"
 	default "1"
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index 85e6a55b3b59..f6eb72d117b9 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -16,6 +16,19 @@ config SEMAPHORE_SLEEPERS
 	bool
 	default y
 
+config HOST_2G_2G
+	bool "2G/2G host address space split"
+	default n
+	help
+	This is needed when the host on which you run has a 2G/2G memory
+	split, instead of the customary 3G/1G.
+
+	Note that to enable such a host
+	configuration, which makes sense only in some cases, you need special
+	host patches.
+
+	So, if you do not know what to do here, say 'N'.
+
 config TOP_ADDR
  	hex
  	default 0xc0000000 if !HOST_2G_2G
@@ -35,11 +48,13 @@ config 3_LEVEL_PGTABLES
 
 config STUB_CODE
 	hex
-	default 0xbfffe000
+	default 0xbfffe000 if !HOST_2G_2G
+	default 0x7fffe000 if HOST_2G_2G
 
 config STUB_DATA
 	hex
-	default 0xbffff000
+	default 0xbffff000 if !HOST_2G_2G
+	default 0x7ffff000 if HOST_2G_2G
 
 config STUB_START
 	hex
diff --git a/arch/um/Makefile b/arch/um/Makefile
index a508e7a02891..f6ad832faf13 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -96,7 +96,8 @@ PHONY += linux
 all: linux
 
 linux: vmlinux
-	ln -f $< $@
+	@echo '  LINK $@'
+	$(Q)ln -f $< $@
 
 define archhelp
   echo '* linux		- Binary kernel image (./linux) - for backward'
@@ -117,6 +118,10 @@ prepare: $(ARCH_DIR)/include/kern_constants.h
 LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
 LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
 
+CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
+	$(call cc-option, -fno-stack-protector,) \
+	$(call cc-option, -fno-stack-protector-all,)
+
 CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT
 CONFIG_KERNEL_STACK_ORDER ?= 2
 STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
@@ -203,8 +208,8 @@ endef
 $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h
 	$(call filechk,umlconfig)
 
-$(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c
-	$(CC) $(USER_CFLAGS) -S -o $@ $<
+$(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s: FORCE
+	$(Q)$(MAKE) $(build)=$(ARCH_DIR)/sys-$(SUBARCH) $@
 
 define filechk_gen-asm-offsets
         (set -e; \
@@ -219,13 +224,11 @@ define filechk_gen-asm-offsets
          echo ""; )
 endef
 
-$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/user-offsets.s
+$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
 	$(call filechk,gen-asm-offsets)
 
-CLEAN_FILES += $(ARCH_DIR)/user-offsets.s
-
 $(ARCH_DIR)/include/kern_constants.h: $(objtree)/$(ARCH_DIR)/include
 	@echo '  SYMLINK $@'
-	$(Q) ln -sf ../../../include/asm-um/asm-offsets.h $@
+	$(Q)ln -sf ../../../include/asm-um/asm-offsets.h $@
 
-export SUBARCH USER_CFLAGS OS
+export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS
diff --git a/arch/um/defconfig b/arch/um/defconfig
index 80d30d19d750..402a74dc5026 100644
--- a/arch/um/defconfig
+++ b/arch/um/defconfig
@@ -1,14 +1,13 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.12-rc6-mm1
-# Tue Jun 14 18:22:21 2005
+# Linux kernel version: 2.6.17-rc3
+# Fri Apr 28 09:31:20 2006
 #
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_UML=y
 CONFIG_MMU=y
-CONFIG_UID16=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_IRQ_RELEASE_METHOD=y
 
 #
 # UML-specific options
@@ -16,8 +15,50 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
 # CONFIG_MODE_TT is not set
 # CONFIG_STATIC_LINK is not set
 CONFIG_MODE_SKAS=y
+
+#
+# Host processor type and features
+#
+# CONFIG_M386 is not set
+# CONFIG_M486 is not set
+# CONFIG_M586 is not set
+# CONFIG_M586TSC is not set
+# CONFIG_M586MMX is not set
+CONFIG_M686=y
+# CONFIG_MPENTIUMII is not set
+# CONFIG_MPENTIUMIII is not set
+# CONFIG_MPENTIUMM is not set
+# CONFIG_MPENTIUM4 is not set
+# CONFIG_MK6 is not set
+# CONFIG_MK7 is not set
+# CONFIG_MK8 is not set
+# CONFIG_MCRUSOE is not set
+# CONFIG_MEFFICEON is not set
+# CONFIG_MWINCHIPC6 is not set
+# CONFIG_MWINCHIP2 is not set
+# CONFIG_MWINCHIP3D is not set
+# CONFIG_MGEODEGX1 is not set
+# CONFIG_MGEODE_LX is not set
+# CONFIG_MCYRIXIII is not set
+# CONFIG_MVIAC3_2 is not set
+# CONFIG_X86_GENERIC is not set
+CONFIG_X86_CMPXCHG=y
+CONFIG_X86_XADD=y
+CONFIG_X86_L1_CACHE_SHIFT=5
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_X86_PPRO_FENCE=y
+CONFIG_X86_WP_WORKS_OK=y
+CONFIG_X86_INVLPG=y
+CONFIG_X86_BSWAP=y
+CONFIG_X86_POPAD_OK=y
+CONFIG_X86_CMPXCHG64=y
+CONFIG_X86_GOOD_APIC=y
+CONFIG_X86_USE_PPRO_CHECKSUM=y
+CONFIG_X86_TSC=y
 CONFIG_UML_X86=y
 # CONFIG_64BIT is not set
+CONFIG_SEMAPHORE_SLEEPERS=y
+# CONFIG_HOST_2G_2G is not set
 CONFIG_TOP_ADDR=0xc0000000
 # CONFIG_3_LEVEL_PGTABLES is not set
 CONFIG_STUB_CODE=0xbfffe000
@@ -25,22 +66,24 @@ CONFIG_STUB_DATA=0xbffff000
 CONFIG_STUB_START=0xbfffe000
 CONFIG_ARCH_HAS_SC_SIGNALS=y
 CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
+CONFIG_GENERIC_HWEIGHT=y
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y
 # CONFIG_DISCONTIGMEM_MANUAL is not set
 # CONFIG_SPARSEMEM_MANUAL is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_LD_SCRIPT_DYN=y
 CONFIG_NET=y
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 # CONFIG_HOSTFS is not set
+# CONFIG_HPPFS is not set
 CONFIG_MCONSOLE=y
 # CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_HOST_2G_2G is not set
 CONFIG_NEST_LEVEL=0
-CONFIG_KERNEL_HALF_GIGS=1
 # CONFIG_HIGHMEM is not set
 CONFIG_KERNEL_STACK_ORDER=2
 CONFIG_UML_REAL_TIME_CLOCK=y
@@ -49,7 +92,6 @@ CONFIG_UML_REAL_TIME_CLOCK=y
 # Code maturity level options
 #
 CONFIG_EXPERIMENTAL=y
-CONFIG_CLEAN_COMPILE=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 
@@ -57,6 +99,7 @@ CONFIG_INIT_ENV_ARG_LIMIT=32
 # General setup
 #
 CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -64,26 +107,28 @@ CONFIG_BSD_PROCESS_ACCT=y
 # CONFIG_BSD_PROCESS_ACCT_V3 is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
+# CONFIG_RELAY is not set
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_UID16=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 CONFIG_KALLSYMS_EXTRA_PASS=y
+CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
+CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
 CONFIG_SHMEM=y
-CONFIG_CC_ALIGN_FUNCTIONS=0
-CONFIG_CC_ALIGN_LABELS=0
-CONFIG_CC_ALIGN_LOOPS=0
-CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_SLAB=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
+# CONFIG_SLOB is not set
 
 #
 # Loadable module support
@@ -91,18 +136,43 @@ CONFIG_BASE_SMALL=0
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_FORCE_UNLOAD is not set
-CONFIG_OBSOLETE_MODPARM=y
 # CONFIG_MODVERSIONS is not set
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 CONFIG_KMOD=y
 
 #
-# Generic Driver Options
+# Block layer
 #
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
-# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+
+#
+# Block devices
+#
+CONFIG_BLK_DEV_UBD=y
+# CONFIG_BLK_DEV_UBD_SYNC is not set
+CONFIG_BLK_DEV_COW_COMMON=y
+# CONFIG_MMAPPER is not set
+CONFIG_BLK_DEV_LOOP=m
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+CONFIG_BLK_DEV_NBD=m
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_ATA_OVER_ETH is not set
 
 #
 # Character Devices
@@ -127,50 +197,23 @@ CONFIG_UML_SOUND=m
 CONFIG_SOUND=m
 CONFIG_HOSTAUDIO=m
 CONFIG_UML_RANDOM=y
-# CONFIG_MMAPPER is not set
-
-#
-# Block devices
-#
-CONFIG_BLK_DEV_UBD=y
-CONFIG_BLK_DEV_UBD_SYNC=y
-CONFIG_BLK_DEV_COW_COMMON=y
-CONFIG_BLK_DEV_LOOP=m
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-CONFIG_BLK_DEV_NBD=m
-# CONFIG_BLK_DEV_RAM is not set
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_LBD is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-# CONFIG_ATA_OVER_ETH is not set
-CONFIG_NETDEVICES=y
 
 #
-# UML Network Devices
+# Generic Driver Options
 #
-CONFIG_UML_NET=y
-CONFIG_UML_NET_ETHERTAP=y
-CONFIG_UML_NET_TUNTAP=y
-CONFIG_UML_NET_SLIP=y
-CONFIG_UML_NET_DAEMON=y
-CONFIG_UML_NET_MCAST=y
-CONFIG_UML_NET_SLIRP=y
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
 
 #
-# Networking support
+# Networking
 #
 
 #
 # Networking options
 #
+# CONFIG_NETDEBUG is not set
 CONFIG_PACKET=y
 CONFIG_PACKET_MMAP=y
 CONFIG_UNIX=y
@@ -178,6 +221,7 @@ CONFIG_UNIX=y
 CONFIG_INET=y
 # CONFIG_IP_MULTICAST is not set
 # CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
 # CONFIG_IP_PNP is not set
 # CONFIG_NET_IPIP is not set
 # CONFIG_NET_IPGRE is not set
@@ -186,27 +230,31 @@ CONFIG_INET=y
 # CONFIG_INET_AH is not set
 # CONFIG_INET_ESP is not set
 # CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
 # CONFIG_INET_TUNNEL is not set
-CONFIG_IP_TCPDIAG=y
-# CONFIG_IP_TCPDIAG_IPV6 is not set
-
-#
-# TCP congestion control
-#
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_BIC=y
-CONFIG_TCP_CONG_WESTWOOD=y
-CONFIG_TCP_CONG_HTCP=y
-# CONFIG_TCP_CONG_HSTCP is not set
-# CONFIG_TCP_CONG_HYBLA is not set
-# CONFIG_TCP_CONG_VEGAS is not set
-# CONFIG_TCP_CONG_SCALABLE is not set
 # CONFIG_IPV6 is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET6_TUNNEL is not set
 # CONFIG_NETFILTER is not set
 
 #
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
 # SCTP Configuration (EXPERIMENTAL)
 #
 # CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
 # CONFIG_ATM is not set
 # CONFIG_BRIDGE is not set
 # CONFIG_VLAN_8021Q is not set
@@ -224,27 +272,47 @@ CONFIG_TCP_CONG_HTCP=y
 # QoS and/or fair queueing
 #
 # CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
 
 #
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
-# CONFIG_KGDBOE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NETPOLL_RX is not set
-# CONFIG_NETPOLL_TRAP is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
 # CONFIG_IEEE80211 is not set
+
+#
+# UML Network Devices
+#
+CONFIG_UML_NET=y
+CONFIG_UML_NET_ETHERTAP=y
+CONFIG_UML_NET_TUNTAP=y
+CONFIG_UML_NET_SLIP=y
+CONFIG_UML_NET_DAEMON=y
+CONFIG_UML_NET_MCAST=y
+# CONFIG_UML_NET_PCAP is not set
+CONFIG_UML_NET_SLIRP=y
+
+#
+# Network device support
+#
+CONFIG_NETDEVICES=y
 CONFIG_DUMMY=m
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 CONFIG_TUN=m
 
 #
+# PHY device support
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
 # Wan interfaces
 #
 # CONFIG_WAN is not set
@@ -263,6 +331,13 @@ CONFIG_SLIP=m
 # CONFIG_SLIP_MODE_SLIP6 is not set
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
 
 #
 # File systems
@@ -274,17 +349,14 @@ CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
-# CONFIG_REISER4_FS is not set
 CONFIG_REISERFS_FS=y
 # CONFIG_REISERFS_CHECK is not set
 # CONFIG_REISERFS_PROC_INFO is not set
 # CONFIG_REISERFS_FS_XATTR is not set
 # CONFIG_JFS_FS is not set
-
-#
-# XFS support
-#
+# CONFIG_FS_POSIX_ACL is not set
 # CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 CONFIG_INOTIFY=y
@@ -295,11 +367,6 @@ CONFIG_QUOTACTL=y
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
-
-#
-# Caches
-#
-# CONFIG_FSCACHE is not set
 # CONFIG_FUSE_FS is not set
 
 #
@@ -323,14 +390,10 @@ CONFIG_JOLIET=y
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
 CONFIG_TMPFS=y
-# CONFIG_TMPFS_XATTR is not set
 # CONFIG_HUGETLB_PAGE is not set
 CONFIG_RAMFS=y
 # CONFIG_CONFIGFS_FS is not set
-# CONFIG_RELAYFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -430,6 +493,7 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 # Library routines
 #
 # CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
 CONFIG_CRC32=m
 # CONFIG_LIBCRC32C is not set
 
@@ -448,12 +512,18 @@ CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 CONFIG_DEBUG_SLAB=y
+# CONFIG_DEBUG_SLAB_LEAK is not set
+# CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_INFO=y
 # CONFIG_DEBUG_FS is not set
+# CONFIG_DEBUG_VM is not set
 CONFIG_FRAME_POINTER=y
+# CONFIG_UNWIND_INFO is not set
+CONFIG_FORCED_INLINING=y
+# CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_GPROF is not set
 # CONFIG_GCOV is not set
 # CONFIG_SYSCALL_DEBUG is not set
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index 6ab852bfcd3a..0ec4052db9c5 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -100,7 +100,7 @@ struct cow_header_v3_broken {
 	__u32 alignment;
 	__u32 cow_format;
 	char backing_file[PATH_LEN_V3];
-} __attribute__((packed));
+};
 
 /* COW format definitions - for now, we have only the usual COW bitmap */
 #define COW_BITMAP 0
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index c39ea3abeda4..2ffda012385e 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -89,16 +89,18 @@ void sigio_handler(int sig, union uml_pt_regs *regs)
 	struct irq_fd *irq_fd;
 	int n;
 
-	if(smp_sigio_handler()) return;
-	while(1){
+	if (smp_sigio_handler())
+		return;
+
+	while (1) {
 		n = os_waiting_for_events(active_fds);
 		if (n <= 0) {
 			if(n == -EINTR) continue;
 			else break;
 		}
 
-		for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){
-			if(irq_fd->current_events != 0){
+		for (irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next) {
+			if (irq_fd->current_events != 0) {
 				irq_fd->current_events = 0;
 				do_IRQ(irq_fd->irq, regs);
 			}
@@ -110,19 +112,17 @@ void sigio_handler(int sig, union uml_pt_regs *regs)
 
 static void maybe_sigio_broken(int fd, int type)
 {
-	if(os_isatty(fd)){
-		if((type == IRQ_WRITE) && !pty_output_sigio){
+	if (os_isatty(fd)) {
+		if ((type == IRQ_WRITE) && !pty_output_sigio) {
 			write_sigio_workaround();
 			add_sigio_fd(fd, 0);
-		}
-		else if((type == IRQ_READ) && !pty_close_sigio){
+		} else if ((type == IRQ_READ) && !pty_close_sigio) {
 			write_sigio_workaround();
 			add_sigio_fd(fd, 1);
 		}
 	}
 }
 
-
 int activate_fd(int irq, int fd, int type, void *dev_id)
 {
 	struct pollfd *tmp_pfd;
@@ -132,16 +132,18 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 
 	pid = os_getpid();
 	err = os_set_fd_async(fd, pid);
-	if(err < 0)
+	if (err < 0)
 		goto out;
 
 	new_fd = um_kmalloc(sizeof(*new_fd));
 	err = -ENOMEM;
-	if(new_fd == NULL)
+	if (new_fd == NULL)
 		goto out;
 
-	if(type == IRQ_READ) events = UM_POLLIN | UM_POLLPRI;
-	else events = UM_POLLOUT;
+	if (type == IRQ_READ)
+		events = UM_POLLIN | UM_POLLPRI;
+	else
+		events = UM_POLLOUT;
 	*new_fd = ((struct irq_fd) { .next  		= NULL,
 				     .id 		= dev_id,
 				     .fd 		= fd,
@@ -165,8 +167,8 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 	 * a semaphore.
 	 */
 	flags = irq_lock();
-	for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){
-		if((irq_fd->fd == fd) && (irq_fd->type == type)){
+	for (irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next) {
+		if ((irq_fd->fd == fd) && (irq_fd->type == type)) {
 			printk("Registering fd %d twice\n", fd);
 			printk("Irqs : %d, %d\n", irq_fd->irq, irq);
 			printk("Ids : 0x%p, 0x%p\n", irq_fd->id, dev_id);
@@ -175,13 +177,13 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 	}
 
 	/*-------------*/
-	if(type == IRQ_WRITE)
+	if (type == IRQ_WRITE)
 		fd = -1;
 
 	tmp_pfd = NULL;
 	n = 0;
 
-	while(1){
+	while (1) {
 		n = os_create_pollfd(fd, events, tmp_pfd, n);
 		if (n == 0)
 			break;
@@ -198,10 +200,8 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 		 * then we free the buffer tmp_fds and try again.
 		 */
 		irq_unlock(flags);
-		if (tmp_pfd != NULL) {
-			kfree(tmp_pfd);
-			tmp_pfd = NULL;
-		}
+		kfree(tmp_pfd);
+		tmp_pfd = NULL;
 
 		tmp_pfd = um_kmalloc(n);
 		if (tmp_pfd == NULL)
@@ -249,7 +249,7 @@ static int same_irq_and_dev(struct irq_fd *irq, void *d)
 {
 	struct irq_and_dev *data = d;
 
-	return((irq->irq == data->irq) && (irq->id == data->dev));
+	return ((irq->irq == data->irq) && (irq->id == data->dev));
 }
 
 void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
@@ -262,7 +262,7 @@ void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
 
 static int same_fd(struct irq_fd *irq, void *fd)
 {
-	return(irq->fd == *((int *) fd));
+	return (irq->fd == *((int *)fd));
 }
 
 void free_irq_by_fd(int fd)
@@ -276,16 +276,17 @@ static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out)
 	int i = 0;
 	int fdi;
 
-	for(irq=active_fds; irq != NULL; irq = irq->next){
-		if((irq->fd == fd) && (irq->irq == irqnum)) break;
+	for (irq = active_fds; irq != NULL; irq = irq->next) {
+		if ((irq->fd == fd) && (irq->irq == irqnum))
+			break;
 		i++;
 	}
-	if(irq == NULL){
+	if (irq == NULL) {
 		printk("find_irq_by_fd doesn't have descriptor %d\n", fd);
 		goto out;
 	}
 	fdi = os_get_pollfd(i);
-	if((fdi != -1) && (fdi != fd)){
+	if ((fdi != -1) && (fdi != fd)) {
 		printk("find_irq_by_fd - mismatch between active_fds and "
 		       "pollfds, fd %d vs %d, need %d\n", irq->fd,
 		       fdi, fd);
@@ -294,7 +295,7 @@ static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out)
 	}
 	*index_out = i;
  out:
-	return(irq);
+	return irq;
 }
 
 void reactivate_fd(int fd, int irqnum)
@@ -305,7 +306,7 @@ void reactivate_fd(int fd, int irqnum)
 
 	flags = irq_lock();
 	irq = find_irq_by_fd(fd, irqnum, &i);
-	if(irq == NULL){
+	if (irq == NULL) {
 		irq_unlock(flags);
 		return;
 	}
@@ -326,7 +327,7 @@ void deactivate_fd(int fd, int irqnum)
 
 	flags = irq_lock();
 	irq = find_irq_by_fd(fd, irqnum, &i);
-	if(irq == NULL)
+	if (irq == NULL)
 		goto out;
 	os_set_pollfd(i, -1);
  out:
@@ -338,15 +339,15 @@ int deactivate_all_fds(void)
 	struct irq_fd *irq;
 	int err;
 
-	for(irq=active_fds;irq != NULL;irq = irq->next){
+	for (irq = active_fds; irq != NULL; irq = irq->next) {
 		err = os_clear_fd_async(irq->fd);
-		if(err)
-			return(err);
+		if (err)
+			return err;
 	}
 	/* If there is a signal already queued, after unblocking ignore it */
 	os_set_ioignore();
 
-	return(0);
+	return 0;
 }
 
 void forward_interrupts(int pid)
@@ -356,9 +357,9 @@ void forward_interrupts(int pid)
 	int err;
 
 	flags = irq_lock();
-	for(irq=active_fds;irq != NULL;irq = irq->next){
+	for (irq = active_fds; irq != NULL; irq = irq->next) {
 		err = os_set_owner(irq->fd, pid);
-		if(err < 0){
+		if (err < 0) {
 			/* XXX Just remove the irq rather than
 			 * print out an infinite stream of these
 			 */
@@ -379,7 +380,7 @@ void forward_interrupts(int pid)
 unsigned int do_IRQ(int irq, union uml_pt_regs *regs)
 {
        irq_enter();
-       __do_IRQ(irq, (struct pt_regs *) regs);
+       __do_IRQ(irq, (struct pt_regs *)regs);
        irq_exit();
        return 1;
 }
@@ -392,12 +393,12 @@ int um_request_irq(unsigned int irq, int fd, int type,
 	int err;
 
 	err = request_irq(irq, handler, irqflags, devname, dev_id);
-	if(err)
-		return(err);
+	if (err)
+		return err;
 
-	if(fd != -1)
+	if (fd != -1)
 		err = activate_fd(irq, fd, type, dev_id);
-	return(err);
+	return err;
 }
 EXPORT_SYMBOL(um_request_irq);
 EXPORT_SYMBOL(reactivate_fd);
@@ -409,7 +410,7 @@ unsigned long irq_lock(void)
 	unsigned long flags;
 
 	spin_lock_irqsave(&irq_spinlock, flags);
-	return(flags);
+	return flags;
 }
 
 void irq_unlock(unsigned long flags)
@@ -452,7 +453,7 @@ void __init init_IRQ(void)
 	irq_desc[TIMER_IRQ].depth = 1;
 	irq_desc[TIMER_IRQ].handler = &SIGVTALRM_irq_type;
 	enable_irq(TIMER_IRQ);
-	for(i=1;i<NR_IRQS;i++){
+	for (i = 1; i < NR_IRQS; i++) {
 		irq_desc[i].status = IRQ_DISABLED;
 		irq_desc[i].action = NULL;
 		irq_desc[i].depth = 1;
@@ -467,7 +468,7 @@ int init_aio_irq(int irq, char *name, irqreturn_t (*handler)(int, void *,
 	int fds[2], err;
 
 	err = os_pipe(fds, 1, 1);
-	if(err){
+	if (err) {
 		printk("init_aio_irq - os_pipe failed, err = %d\n", -err);
 		goto out;
 	}
@@ -475,7 +476,7 @@ int init_aio_irq(int irq, char *name, irqreturn_t (*handler)(int, void *,
 	err = um_request_irq(irq, fds[0], IRQ_READ, handler,
 			     SA_INTERRUPT | SA_SAMPLE_RANDOM, name,
 			     (void *) (long) fds[0]);
-	if(err){
+	if (err) {
 		printk("init_aio_irq - : um_request_irq failed, err = %d\n",
 		       err);
 		goto out_close;
@@ -488,5 +489,5 @@ int init_aio_irq(int irq, char *name, irqreturn_t (*handler)(int, void *,
 	os_close_file(fds[0]);
 	os_close_file(fds[1]);
  out:
-	return(err);
+	return err;
 }
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 0500800df1c1..fc0f0b085ca7 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -407,6 +407,8 @@ unsigned long find_iomem(char *driver, unsigned long *len_out)
 			*len_out = region->size;
 			return(region->virt);
 		}
+
+		region = region->next;
 	}
 
 	return(0);
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 60d2eda995c1..9a77fb3c269d 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -275,15 +275,13 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit)
 
 	if (unlikely(current->audit_context)) {
 		if (!entryexit)
-			audit_syscall_entry(current,
-                                            HOST_AUDIT_ARCH,
+			audit_syscall_entry(HOST_AUDIT_ARCH,
 					    UPT_SYSCALL_NR(regs),
 					    UPT_SYSCALL_ARG1(regs),
 					    UPT_SYSCALL_ARG2(regs),
 					    UPT_SYSCALL_ARG3(regs),
 					    UPT_SYSCALL_ARG4(regs));
-		else audit_syscall_exit(current,
-                                        AUDITSC_RESULT(UPT_SYSCALL_RET(regs)),
+		else audit_syscall_exit(AUDITSC_RESULT(UPT_SYSCALL_RET(regs)),
                                         UPT_SYSCALL_RET(regs));
 	}
 
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile
index 57181a920d48..ea3a8e409a6e 100644
--- a/arch/um/kernel/skas/Makefile
+++ b/arch/um/kernel/skas/Makefile
@@ -6,9 +6,11 @@
 obj-y := clone.o exec_kern.o mem.o mmu.o process_kern.o \
 	syscall.o tlb.o uaccess.o
 
-USER_OBJS := clone.o
+# clone.o is in the stub, so it can't be built with profiling
+# GCC hardened also auto-enables -fpic, but we need %ebx so it can't work ->
+# disable it
 
-include arch/um/scripts/Makefile.rules
+CFLAGS_clone.o := $(CFLAGS_NO_HARDENING)
+UNPROFILE_OBJS := clone.o
 
-# clone.o is in the stub, so it can't be built with profiling
-$(obj)/clone.o : c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS))
+include arch/um/scripts/Makefile.rules
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 3c7626cdba4b..528cf623f8b4 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -209,4 +209,4 @@ int __init timer_init(void)
 	return(0);
 }
 
-__initcall(timer_init);
+arch_initcall(timer_init);
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 3bd10deea280..09251338d99e 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -171,7 +171,7 @@ int os_sigio_async(int master, int slave)
 
 	flags = fcntl(master, F_GETFL);
 	if(flags < 0)
-		return errno;
+		return -errno;
 
 	if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) ||
 	   (fcntl(master, F_SETOWN, os_getpid()) < 0))
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index e599be423da1..3788d4568d33 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -29,21 +29,21 @@ int os_waiting_for_events(struct irq_fd *active_fds)
 	int i, n, err;
 
 	n = poll(pollfds, pollfds_num, 0);
-	if(n < 0){
+	if (n < 0) {
 		err = -errno;
-		if(errno != EINTR)
+		if (errno != EINTR)
 			printk("sigio_handler: os_waiting_for_events:"
 			       " poll returned %d, errno = %d\n", n, errno);
 		return err;
 	}
 
-	if(n == 0)
+	if (n == 0)
 		return 0;
 
 	irq_fd = active_fds;
 
-	for(i = 0; i < pollfds_num; i++){
-		if(pollfds[i].revents != 0){
+	for (i = 0; i < pollfds_num; i++) {
+		if (pollfds[i].revents != 0) {
 			irq_fd->current_events = pollfds[i].revents;
 			pollfds[i].fd = -1;
 		}
@@ -54,7 +54,7 @@ int os_waiting_for_events(struct irq_fd *active_fds)
 
 int os_isatty(int fd)
 {
-	return(isatty(fd));
+	return isatty(fd);
 }
 
 int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds)
@@ -65,7 +65,7 @@ int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds)
 			return((pollfds_size + 1) * sizeof(pollfds[0]));
 		}
 
-		if(pollfds != NULL){
+		if (pollfds != NULL) {
 			memcpy(tmp_pfd, pollfds,
 			       sizeof(pollfds[0]) * pollfds_size);
 			/* remove old pollfds */
@@ -73,18 +73,15 @@ int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds)
 		}
 		pollfds = tmp_pfd;
 		pollfds_size++;
-	} else {
-		/* remove not used tmp_pfd */
-		if (tmp_pfd != NULL)
-			kfree(tmp_pfd);
-	}
+	} else
+		kfree(tmp_pfd);	/* remove not used tmp_pfd */
 
-	pollfds[pollfds_num] = ((struct pollfd) { .fd 	= fd,
-						  .events 	= events,
-						  .revents 	= 0 });
+	pollfds[pollfds_num] = ((struct pollfd) { .fd		= fd,
+						  .events	= events,
+						  .revents	= 0 });
 	pollfds_num++;
 
-	return(0);
+	return 0;
 }
 
 void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg,
@@ -94,11 +91,11 @@ void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg,
 	int i = 0;
 
 	prev = &active_fds;
-	while(*prev != NULL){
-		if((*test)(*prev, arg)){
+	while (*prev != NULL) {
+		if ((*test)(*prev, arg)) {
 			struct irq_fd *old_fd = *prev;
-			if((pollfds[i].fd != -1) &&
-			   (pollfds[i].fd != (*prev)->fd)){
+			if ((pollfds[i].fd != -1) &&
+			    (pollfds[i].fd != (*prev)->fd)) {
 				printk("os_free_irq_by_cb - mismatch between "
 				       "active_fds and pollfds, fd %d vs %d\n",
 				       (*prev)->fd, pollfds[i].fd);
@@ -110,7 +107,6 @@ void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg,
 			/* This moves the *whole* array after pollfds[i]
 			 * (though it doesn't spot as such)!
 			 */
-
 			memmove(&pollfds[i], &pollfds[i + 1],
 			       (pollfds_num - i) * sizeof(pollfds[0]));
 			if(*last_irq_ptr2 == &old_fd->next)
@@ -129,10 +125,9 @@ void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg,
 	return;
 }
 
-
 int os_get_pollfd(int i)
 {
-	return(pollfds[i].fd);
+	return pollfds[i].fd;
 }
 
 void os_set_pollfd(int i, int fd)
@@ -151,8 +146,10 @@ void init_irq_signals(int on_sigstack)
 	int flags;
 
 	flags = on_sigstack ? SA_ONSTACK : 0;
-	if(timer_irq_inited) h = (__sighandler_t) alarm_handler;
-	else h = boot_timer_handler;
+	if (timer_irq_inited)
+		h = (__sighandler_t)alarm_handler;
+	else
+		h = boot_timer_handler;
 
 	set_handler(SIGVTALRM, h, flags | SA_RESTART,
 		    SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 2878e89a674f..3a0ac38e978b 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -74,6 +74,34 @@ static void last_ditch_exit(int sig)
 	exit(1);
 }
 
+#define UML_LIB_PATH	":/usr/lib/uml"
+
+static void setup_env_path(void)
+{
+	char *new_path = NULL;
+	char *old_path = NULL;
+	int path_len = 0;
+
+	old_path = getenv("PATH");
+	/* if no PATH variable is set or it has an empty value
+	 * just use the default + /usr/lib/uml
+	 */
+	if (!old_path || (path_len = strlen(old_path)) == 0) {
+		putenv("PATH=:/bin:/usr/bin/" UML_LIB_PATH);
+		return;
+	}
+
+	/* append /usr/lib/uml to the existing path */
+	path_len += strlen("PATH=" UML_LIB_PATH) + 1;
+	new_path = malloc(path_len);
+	if (!new_path) {
+		perror("coudn't malloc to set a new PATH");
+		return;
+	}
+	snprintf(new_path, path_len, "PATH=%s" UML_LIB_PATH, old_path);
+	putenv(new_path);
+}
+
 extern int uml_exitcode;
 
 extern void scan_elf_aux( char **envp);
@@ -114,6 +142,8 @@ int main(int argc, char **argv, char **envp)
 
 	set_stklim();
 
+	setup_env_path();
+
 	new_argv = malloc((argc + 1) * sizeof(char *));
 	if(new_argv == NULL){
 		perror("Mallocing argv");
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 3505f44f8a25..233be2f4f8cb 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -206,29 +206,36 @@ int os_drop_memory(void *addr, int length)
 int can_drop_memory(void)
 {
 	void *addr;
-	int fd;
+	int fd, ok = 0;
 
 	printk("Checking host MADV_REMOVE support...");
 	fd = create_mem_file(UM_KERN_PAGE_SIZE);
 	if(fd < 0){
 		printk("Creating test memory file failed, err = %d\n", -fd);
-		return 0;
+		goto out;
 	}
 
 	addr = mmap64(NULL, UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE,
 		      MAP_SHARED, fd, 0);
 	if(addr == MAP_FAILED){
 		printk("Mapping test memory file failed, err = %d\n", -errno);
-		return 0;
+		goto out_close;
 	}
 
 	if(madvise(addr, UM_KERN_PAGE_SIZE, MADV_REMOVE) != 0){
 		printk("MADV_REMOVE failed, err = %d\n", -errno);
-		return 0;
+		goto out_unmap;
 	}
 
 	printk("OK\n");
-	return 1;
+	ok = 1;
+
+out_unmap:
+	munmap(addr, UM_KERN_PAGE_SIZE);
+out_close:
+	close(fd);
+out:
+	return ok;
 }
 
 void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int))
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 0776bc18ca85..bd89c6b99d5d 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -344,12 +344,12 @@ int copy_context_skas0(unsigned long new_stack, int pid)
 	err = ptrace_setregs(pid, regs);
 	if(err < 0)
 		panic("copy_context_skas0 : PTRACE_SETREGS failed, "
-		      "pid = %d, errno = %d\n", pid, errno);
+		      "pid = %d, errno = %d\n", pid, -err);
 
 	err = ptrace_setfpregs(pid, fp_regs);
 	if(err < 0)
 		panic("copy_context_skas0 : PTRACE_SETFPREGS failed, "
-		      "pid = %d, errno = %d\n", pid, errno);
+		      "pid = %d, errno = %d\n", pid, -err);
 
 	/* set a well known return code for detection of child write failure */
 	child_data->err = 12345678;
@@ -362,7 +362,7 @@ int copy_context_skas0(unsigned long new_stack, int pid)
 	pid = data->err;
 	if(pid < 0)
 		panic("copy_context_skas0 - stub-parent reports error %d\n",
-		      pid);
+		      -pid);
 
 	/* Wait, until child has finished too: read child's result from
 	 * child's stack and check it.
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
index 7a6f6b99ceff..516f66dd87e3 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -104,7 +104,7 @@ void init_registers(int pid)
 	err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
 	if(err)
 		panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
-		      err);
+		      errno);
 
 	errno = 0;
 	err = ptrace(PTRACE_GETFPXREGS, pid, 0, exec_fpx_regs);
@@ -119,7 +119,7 @@ void init_registers(int pid)
 	err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs);
 	if(err)
 		panic("check_ptrace : PTRACE_GETFPREGS failed, errno = %d",
-		      err);
+		      errno);
 }
 
 void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index 001941fa1a1e..becd898d9398 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -62,12 +62,12 @@ void init_registers(int pid)
 	err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
 	if(err)
 		panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
-		      err);
+		      errno);
 
 	err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs);
 	if(err)
 		panic("check_ptrace : PTRACE_GETFPREGS failed, errno = %d",
-		      err);
+		      errno);
 }
 
 void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index 34bfc1bb9e38..362db059fe30 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -178,14 +178,14 @@ static void __init create_pid_file(void)
 	fd = open(file, O_RDWR | O_CREAT | O_EXCL, 0644);
 	if(fd < 0){
 		printk("Open of machine pid file \"%s\" failed: %s\n",
-		       file, strerror(-fd));
+		       file, strerror(errno));
 		return;
 	}
 
 	snprintf(pid, sizeof(pid), "%d\n", getpid());
 	n = write(fd, pid, strlen(pid));
 	if(n != strlen(pid))
-		printk("Write of pid file failed - err = %d\n", -n);
+		printk("Write of pid file failed - err = %d\n", errno);
 
 	close(fd);
 }
diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index 2598158e1f53..3f33165ada68 100644
--- a/arch/um/os-Linux/user_syms.c
+++ b/arch/um/os-Linux/user_syms.c
@@ -96,6 +96,13 @@ EXPORT_SYMBOL_PROTO(getuid);
 EXPORT_SYMBOL_PROTO(fsync);
 EXPORT_SYMBOL_PROTO(fdatasync);
 
+/* Export symbols used by GCC for the stack protector. */
+extern void __stack_smash_handler(void *) __attribute__((weak));
+EXPORT_SYMBOL(__stack_smash_handler);
+
+extern long __guard __attribute__((weak));
+EXPORT_SYMBOL(__guard);
+
 /*
  * Overrides for Emacs so that we follow Linus's tabbing style.
  * Emacs will notice this stuff at the end of the file and automatically
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 5e7a9c310aa5..1347dc6d5218 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -7,11 +7,19 @@ USER_SINGLE_OBJS := \
 USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 
-$(USER_OBJS) $(USER_OBJS:.o=.i) $(USER_OBJS:.o=.s) $(USER_OBJS:.o=.lst): \
-	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(notdir $@))
+$(USER_OBJS:.o=.%): \
+	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(*F).o)
 $(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
 	-Dunix -D__unix__ -D__$(SUBARCH)__
 
+# These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
+# using it directly.
+UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))
+
+$(UNPROFILE_OBJS:.o=.%): \
+	c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(*F).o)
+$(UNPROFILE_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
+	-Dunix -D__unix__ -D__$(SUBARCH)__
 
 # The stubs and unmap.o can't try to call mcount or update basic block data
 define unprofile
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index 98b20b7bba4f..374d61a19439 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -8,11 +8,16 @@ subarch-obj-y = lib/bitops.o kernel/semaphore.o
 subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem.o
 subarch-obj-$(CONFIG_MODULES) += kernel/module.o
 
-USER_OBJS := bugs.o ptrace_user.o sigcontext.o fault.o stub_segv.o
+USER_OBJS := bugs.o ptrace_user.o sigcontext.o fault.o
 
-include arch/um/scripts/Makefile.rules
+USER_OBJS += user-offsets.s
+extra-y += user-offsets.s
 
 extra-$(CONFIG_MODE_TT) += unmap.o
 
-$(obj)/stub_segv.o $(obj)/unmap.o: \
-	_c_flags = $(call unprofile,$(CFLAGS))
+UNPROFILE_OBJS := stub_segv.o
+CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
+
+include arch/um/scripts/Makefile.rules
+
+$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS))
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index b5fc22babddf..c19794d435d6 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -16,11 +16,16 @@ subarch-obj-$(CONFIG_MODULES) += kernel/module.o
 
 ldt-y = ../sys-i386/ldt.o
 
-USER_OBJS := ptrace_user.o sigcontext.o stub_segv.o
+USER_OBJS := ptrace_user.o sigcontext.o
 
-include arch/um/scripts/Makefile.rules
+USER_OBJS += user-offsets.s
+extra-y += user-offsets.s
 
 extra-$(CONFIG_MODE_TT) += unmap.o
 
-$(obj)/stub_segv.o $(obj)/unmap.o: \
-	_c_flags = $(call unprofile,$(CFLAGS))
+UNPROFILE_OBJS := stub_segv.o
+CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
+
+include arch/um/scripts/Makefile.rules
+
+$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS))
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 57fc37e0fb9c..5a92fed2d1d5 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -695,4 +695,5 @@ ia32_sys_call_table:
 	.quad sys_splice
 	.quad sys_sync_file_range
 	.quad sys_tee
+	.quad compat_sys_vmsplice
 ia32_syscall_end:		
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index da8e7903d817..2d50024c9f30 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -600,12 +600,12 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 
 	if (unlikely(current->audit_context)) {
 		if (test_thread_flag(TIF_IA32)) {
-			audit_syscall_entry(current, AUDIT_ARCH_I386,
+			audit_syscall_entry(AUDIT_ARCH_I386,
 					    regs->orig_rax,
 					    regs->rbx, regs->rcx,
 					    regs->rdx, regs->rsi);
 		} else {
-			audit_syscall_entry(current, AUDIT_ARCH_X86_64,
+			audit_syscall_entry(AUDIT_ARCH_X86_64,
 					    regs->orig_rax,
 					    regs->rdi, regs->rsi,
 					    regs->rdx, regs->r10);
@@ -616,7 +616,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 {
 	if (unlikely(current->audit_context))
-		audit_syscall_exit(current, AUDITSC_RESULT(regs->rax), regs->rax);
+		audit_syscall_exit(AUDITSC_RESULT(regs->rax), regs->rax);
 
 	if ((test_thread_flag(TIF_SYSCALL_TRACE)
 	     || test_thread_flag(TIF_SINGLESTEP))
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 759070c82751..ebc3c33b1c6c 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -1426,3 +1426,22 @@ struct seq_operations cpuinfo_op = {
 	.show =	show_cpuinfo,
 };
 
+#ifdef CONFIG_INPUT_PCSPKR
+#include <linux/platform_device.h>
+static __init int add_pcspkr(void)
+{
+	struct platform_device *pd;
+	int ret;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
+#endif