Merge tag 'v3.6-rc7' into drm-intel-next-queued

Manual backmerge of -rc7 to resolve a silent conflict leading to
compile failure in drivers/gpu/drm/i915/intel_hdmi.c.

This is due to the bugfix in -rc7:

commit b98b60167279df3acac9422c3c9820d9ebbcf9fb
Author: Wang Xingchao <xingchao.wang@intel.com>
Date:   Thu Sep 13 07:43:22 2012 +0800

    drm/i915: HDMI - Clear Audio Enable bit for Hot Plug

Since this code moved around a lot in -next git put that snippet at
the wrong spot. I've tried to fix this by making the conflict explicit
by merging a version for next with:

commit 3cce574f0190dd149472059fb69267cf83d290f9
Author: Wang Xingchao <xingchao.wang@intel.com>
Date:   Thu Sep 13 11:19:00 2012 +0800

    drm/i915: HDMI - Clear Audio Enable bit for Hot Plug unconditionally

But that failed to solve the entire problem. To avoid pushing out
further -nightly branch to our QA where this is broken, do the
backmerge and manually add the stuff git adds to -next from the patch
in -fixes.

Note that this doesn't show up in git's merge diff (and hence is also
not handled by git rerere), which adds to the reasons why I'd like to
fix this with a verbose backmerge. The git merge diff only shows a
bunch of trivial conflicts of the "code changed in lines next to each
another" kind.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

8 files changed, 47 insertions, 9 deletions

diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 33d6630529de..91eec60252ee 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -1264,6 +1264,9 @@ int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba)
 	int rc = 0;
 	u64 mask64;
 
+	memset(&iscsi_init, 0x00, sizeof(struct iscsi_kwqe_init1));
+	memset(&iscsi_init2, 0x00, sizeof(struct iscsi_kwqe_init2));
+
 	bnx2i_adjust_qp_size(hba);
 
 	iscsi_init.flags =
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 796482badf13..2b4261cb7742 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1315,8 +1315,9 @@ static void complete_scsi_command(struct CommandList *cp)
 	}
 		break;
 	case CMD_PROTOCOL_ERR:
+		cmd->result = DID_ERROR << 16;
 		dev_warn(&h->pdev->dev, "cp %p has "
-			"protocol error \n", cp);
+			"protocol error\n", cp);
 		break;
 	case CMD_HARDWARE_ERR:
 		cmd->result = DID_ERROR << 16;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index dc27598785e5..ed38454228c6 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4066,7 +4066,6 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&instance->cmd_pool_lock);
 	spin_lock_init(&instance->hba_lock);
 	spin_lock_init(&instance->completion_lock);
-	spin_lock_init(&poll_aen_lock);
 
 	mutex_init(&instance->aen_mutex);
 	mutex_init(&instance->reset_mutex);
@@ -5392,6 +5391,8 @@ static int __init megasas_init(void)
 	printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION,
 	       MEGASAS_EXT_VERSION);
 
+	spin_lock_init(&poll_aen_lock);
+
 	support_poll_for_event = 2;
 	support_device_change = 1;
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 9d46fcbe7755..9d5a56c4b332 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -1209,6 +1209,13 @@ _base_check_enable_msix(struct MPT2SAS_ADAPTER *ioc)
 	u16 message_control;
 
 
+	/* Check whether controller SAS2008 B0 controller,
+	   if it is SAS2008 B0 controller use IO-APIC instead of MSIX */
+	if (ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008 &&
+	    ioc->pdev->revision == 0x01) {
+		return -EINVAL;
+	}
+
 	base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
 	if (!base) {
 		dfailprintk(ioc, printk(MPT2SAS_INFO_FMT "msix not "
@@ -2424,10 +2431,13 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	}
 
 	/* command line tunables  for max controller queue depth */
-	if (max_queue_depth != -1)
-		max_request_credit = (max_queue_depth < facts->RequestCredit)
-		    ? max_queue_depth : facts->RequestCredit;
-	else
+	if (max_queue_depth != -1 && max_queue_depth != 0) {
+		max_request_credit = min_t(u16, max_queue_depth +
+			ioc->hi_priority_depth + ioc->internal_depth,
+			facts->RequestCredit);
+		if (max_request_credit > MAX_HBA_QUEUE_DEPTH)
+			max_request_credit =  MAX_HBA_QUEUE_DEPTH;
+	} else
 		max_request_credit = min_t(u16, facts->RequestCredit,
 		    MAX_HBA_QUEUE_DEPTH);
 
@@ -2502,7 +2512,7 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	/* set the scsi host can_queue depth
 	 * with some internal commands that could be outstanding
 	 */
-	ioc->shost->can_queue = ioc->scsiio_depth - (2);
+	ioc->shost->can_queue = ioc->scsiio_depth;
 	dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scsi host: "
 	    "can_queue depth (%d)\n", ioc->name, ioc->shost->can_queue));
 
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 4a6381c87253..de2337f255a7 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -42,6 +42,8 @@
 
 #include <trace/events/scsi.h>
 
+static void scsi_eh_done(struct scsi_cmnd *scmd);
+
 #define SENSE_TIMEOUT		(10*HZ)
 
 /*
@@ -241,6 +243,14 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
 	if (! scsi_command_normalize_sense(scmd, &sshdr))
 		return FAILED;	/* no valid sense data */
 
+	if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done)
+		/*
+		 * nasty: for mid-layer issued TURs, we need to return the
+		 * actual sense data without any recovery attempt.  For eh
+		 * issued ones, we need to try to recover and interpret
+		 */
+		return SUCCESS;
+
 	if (scsi_sense_is_deferred(&sshdr))
 		return NEEDS_RETRY;
 
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ffd77739ae3e..faa790fba134 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -776,7 +776,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 	}
 
 	if (req->cmd_type == REQ_TYPE_BLOCK_PC) { /* SG_IO ioctl from block level */
-		req->errors = result;
 		if (result) {
 			if (sense_valid && req->sense) {
 				/*
@@ -792,6 +791,10 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 			if (!sense_deferred)
 				error = __scsi_error_from_host_byte(cmd, result);
 		}
+		/*
+		 * __scsi_error_from_host_byte may have reset the host_byte
+		 */
+		req->errors = cmd->result;
 
 		req->resid_len = scsi_get_resid(cmd);
 
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 56a93794c470..d947ffc20ceb 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -764,6 +764,16 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	sdev->model = (char *) (sdev->inquiry + 16);
 	sdev->rev = (char *) (sdev->inquiry + 32);
 
+	if (strncmp(sdev->vendor, "ATA     ", 8) == 0) {
+		/*
+		 * sata emulation layer device.  This is a hack to work around
+		 * the SATL power management specifications which state that
+		 * when the SATL detects the device has gone into standby
+		 * mode, it shall respond with NOT READY.
+		 */
+		sdev->allow_restart = 1;
+	}
+
 	if (*bflags & BLIST_ISROM) {
 		sdev->type = TYPE_ROM;
 		sdev->removable = 1;
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index c7030fbee79c..3e79a2f00042 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -331,7 +331,7 @@ static void virtscsi_map_sgl(struct scatterlist *sg, unsigned int *p_idx,
 	int i;
 
 	for_each_sg(table->sgl, sg_elem, table->nents, i)
-		sg_set_buf(&sg[idx++], sg_virt(sg_elem), sg_elem->length);
+		sg[idx++] = *sg_elem;
 
 	*p_idx = idx;
 }