Patch "scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead" has been added to the 4.13-stable tree

Patch "scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead" has been added to the 4.13-stable tree

[gregkh]

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

    scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead

to the 4.13-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-megaraid_sas-return-pended-ioctls-with-cmd_status-mfi_stat_wrong_state-in-case-adapter-is-dead.patch
and it can be found in the queue-4.13 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 eb3fe263a48b0d27b229c213929c4cb3b1b39a0f Mon Sep 17 00:00:00 2001
From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Date: Wed, 23 Aug 2017 04:47:04 -0700
Subject: scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead

From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>

commit eb3fe263a48b0d27b229c213929c4cb3b1b39a0f upstream.

After a kill adapter, since the cmd_status is not set, the IOCTLs will
be hung in driver resulting in application hang.  Set cmd_status
MFI_STAT_WRONG_STATE when completing pended IOCTLs.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/megaraid/megaraid_sas_base.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1995,9 +1995,12 @@ static void megasas_complete_outstanding
 			if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
 				cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
 				if (cmd_mfi->sync_cmd &&
-					cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
+				    (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
+					cmd_mfi->frame->hdr.cmd_status =
+							MFI_STAT_WRONG_STATE;
 					megasas_complete_cmd(instance,
 							     cmd_mfi, DID_OK);
+				}
 			}
 		}
 	} else {


Patches currently in stable-queue which might be from shivasharan.srikanteshwara@broadcom.com are

queue-4.13/scsi-megaraid_sas-check-valid-aen-class-range-to-avoid-kernel-panic.patch
queue-4.13/scsi-megaraid_sas-return-pended-ioctls-with-cmd_status-mfi_stat_wrong_state-in-case-adapter-is-dead.patch
queue-4.13/scsi-megaraid_sas-set-minimum-value-of-resetwaittime-to-be-1-secs.patch
queue-4.13/scsi-megaraid_sas-mismatch-of-allocated-mfi-frame-size-and-length-exposed-in-mfi-mpt-pass-through-command.patch