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scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression 

This patch will fix regression caused by commit 1e793f6fc0 ("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]

Fixes: 1e793f6fc0
Reported-by: Jens Axboe <axboe@kernel.dk>
CC: stable@vger.kernel.org
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Tested-by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Tested-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sumit Saxena 2016-11-09 02:59:42 -08:00 committed by Martin K. Petersen
parent 1535aa75a3
commit 5e5ec1759d
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/megaraid/megaraid_sas.h
View File

@ -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) + \