Patch "scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression" has been added to the 4.8-stable tree

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

scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression

to the 4.8-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-fix-macro-megasas_is_logical-to-avoid-regression.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Sumit Saxena <[email protected]>
Date: Wed, 9 Nov 2016 02:59:42 -0800
Subject: scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression

From: Sumit Saxena <[email protected]>

commit 5e5ec1759dd663a1d5a2f10930224dd009e500e8 upstream.

This patch will fix regression caused by commit 1e793f6fc0db ("scsi:
megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices").

The problem was that the MEGASAS_IS_LOGICAL macro did not have braces and as a result the driver ended up exposing a lot of non-existing SCSI devices (all SCSI commands to channels 1,2,3 were returned as SUCCESS-DID_OK by driver).

[mkp: clarified patch description]

---
 drivers/scsi/megaraid/megaraid_sas.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -2233,7 +2233,7 @@ struct megasas_instance_template {
 };
 
 #define MEGASAS_IS_LOGICAL(scp)						\
-	(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
+	((scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1)
 
 #define MEGASAS_DEV_INDEX(scp)						\
 	(((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +	\

Patches currently in stable-queue which might be from [email protected] are

queue-4.8/scsi-megaraid_sas-fix-macro-megasas_is_logical-to-avoid-regression.patch queue-4.8/scsi-megaraid_sas-fix-data-integrity-failure-for-jbod-passthrough-devices.patch