From: Himanshu Madhani <himanshu.madhani@cavium.com>
Date: Fri, 30 Jun 2017 19:32:53 -0700
Subject: qla2xxx: Fix NVMe entry_type for iocb packet on BE system
Patch-mainline: v4.13-rc1
Git-commit: c345c6ca13825d1a15de5399226802433dd30f8c
References: FATE#322910
This patch fixes incorrect assignment for entry_type field for Continuation
Type iocb packet on BE system. This was caught by -Woverflow warning on BE
system compilation.
For Continuation Type iocb driver needs to write complete 32 bit value to
initialize other field members in structure to 0.
Following warning is seen on BE system compile:
drivers/scsi/qla2xxx/qla_nvme.c: In function 'qla2x00_start_nvme_mq':
include/uapi/linux/byteorder/big_endian.h:32:26: warning: large integer
implicitly truncated to unsigned type [-Woverflow]
#define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
[mkp: fixed typo]
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/scsi/qla2xxx/qla_nvme.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index ec15a49532a6..f3710a75fe1f 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -442,7 +442,8 @@ static int qla2x00_start_nvme_mq(srb_t *sp)
req->ring_ptr++;
}
cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
- cont_pkt->entry_type = cpu_to_le32(CONTINUE_A64_TYPE);
+ *((uint32_t *)(&cont_pkt->entry_type)) =
+ cpu_to_le32(CONTINUE_A64_TYPE);
cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
avail_dsds = 5;
--
2.12.3