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authorSumit Saxena <sumit.saxena@broadcom.com>2016-11-09 02:59:42 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-15 07:46:40 +0100
commitae94da4c53b77058241fd3551f55cd40327be37d (patch)
tree3b690d7d7213d19c1f1e99d413dc7d76e7a1bf1f
parent2be0548e64f19ebf97f5f7f8dddaa5f4c9d05a8d (diff)
scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression
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] Fixes: 1e793f6fc0db920400574211c48f9157a37e3945 Reported-by: Jens Axboe <axboe@kernel.dk> 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index ef4ff03242ea..aaf7da07a358 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1923,7 +1923,7 @@ 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) + \