Patch "scsi: storvsc: properly handle SRB_ERROR when sense message is present" has been added to the 4.9-stable tree

Patch "scsi: storvsc: properly handle SRB_ERROR when sense message is present" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    scsi: storvsc: properly handle SRB_ERROR when sense message is present

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     scsi-storvsc-properly-handle-srb_error-when-sense-message-is-present.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From bba5dc332ec2d3a685cb4dae668c793f6a3713a3 Mon Sep 17 00:00:00 2001
From: Long Li <longli@microsoft.com>
Date: Wed, 14 Dec 2016 18:46:02 -0800
Subject: scsi: storvsc: properly handle SRB_ERROR when sense message is present

From: Long Li <longli@microsoft.com>

commit bba5dc332ec2d3a685cb4dae668c793f6a3713a3 upstream.

When sense message is present on error, we should pass along to the upper
layer to decide how to deal with the error.
This patch fixes connectivity issues with Fiber Channel devices.

Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/storvsc_drv.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -891,6 +891,13 @@ static void storvsc_handle_error(struct
 	switch (SRB_STATUS(vm_srb->srb_status)) {
 	case SRB_STATUS_ERROR:
 		/*
+		 * Let upper layer deal with error when
+		 * sense message is present.
+		 */
+
+		if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID)
+			break;
+		/*
 		 * If there is an error; offline the device since all
 		 * error recovery strategies would have already been
 		 * deployed on the host side. However, if the command


Patches currently in stable-queue which might be from longli@microsoft.com are

queue-4.9/scsi-storvsc-use-tagged-srb-requests-if-supported-by-the-device.patch
queue-4.9/scsi-storvsc-properly-set-residual-data-length-on-errors.patch
queue-4.9/scsi-storvsc-properly-handle-srb_error-when-sense-message-is-present.patch