linux-kernel - [PATCH 3.16 105/204] scsi: libiscsi: fix shifting of DID

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Message-ID: <lsq.1514480744.553454095@decadent.org.uk>
Date:   Thu, 28 Dec 2017 17:05:44 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Chris Leech" <cleech@...hat.com>,
        "Lee Duncan" <lduncan@...e.com>,
        "Johannes Thumshirn" <jthumshirn@...e.de>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Hannes Reinecke" <hare@...e.de>,
        "Bart Van Assche" <Bart.VanAssche@...disk.com>
Subject: [PATCH 3.16 105/204] scsi: libiscsi: fix shifting of DID_REQUEUE
 host byte

3.16.52-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Johannes Thumshirn <jthumshirn@...e.de>

commit eef9ffdf9cd39b2986367bc8395e2772bc1284ba upstream.

The SCSI host byte should be shifted left by 16 in order to have
scsi_decide_disposition() do the right thing (.i.e. requeue the
command).

Signed-off-by: Johannes Thumshirn <jthumshirn@...e.de>
Fixes: 661134ad3765 ("[SCSI] libiscsi, bnx2i: make bound ep check common")
Cc: Lee Duncan <lduncan@...e.com>
Cc: Hannes Reinecke <hare@...e.de>
Cc: Bart Van Assche <Bart.VanAssche@...disk.com>
Cc: Chris Leech <cleech@...hat.com>
Acked-by: Lee Duncan <lduncan@...e.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/libiscsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1727,7 +1727,7 @@ int iscsi_queuecommand(struct Scsi_Host
 
 	if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) {
 		reason = FAILURE_SESSION_IN_RECOVERY;
-		sc->result = DID_REQUEUE;
+		sc->result = DID_REQUEUE << 16;
 		goto fault;
 	}