2021-05-10 10:56:59

by Jiapeng Chong

[permalink] [raw]
Subject: [PATCH] scsi: qla2xxx: Remove redundant assignment to rval

Variable rval is set to QLA_SUCCESS, but this value is never read as
it is overwritten later on, hence it is a redundant assignment and
can be removed.

Clean up the following clang-analyzer warning:

drivers/scsi/qla2xxx/qla_init.c:4359:2: warning: Value stored to 'rval'
is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <[email protected]>
Signed-off-by: Jiapeng Chong <[email protected]>
---
drivers/scsi/qla2xxx/qla_init.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 0de2505..eb82531 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4356,8 +4356,6 @@ void qla_init_iocb_limit(scsi_qla_host_t *vha)
if (IS_QLAFX00(vha->hw))
return qlafx00_fw_ready(vha);

- rval = QLA_SUCCESS;
-
/* Time to wait for loop down */
if (IS_P3P_TYPE(ha))
min_wait = 30;
--
1.8.3.1


2021-05-22 03:00:39

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH] scsi: qla2xxx: Remove redundant assignment to rval


Jiapeng,

> Variable rval is set to QLA_SUCCESS, but this value is never read as
> it is overwritten later on, hence it is a redundant assignment and
> can be removed.

Applied to 5.14/scsi-staging, thanks!

--
Martin K. Petersen Oracle Linux Engineering

2021-05-26 04:32:32

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH] scsi: qla2xxx: Remove redundant assignment to rval

On Mon, 10 May 2021 18:40:06 +0800, Jiapeng Chong wrote:

> Variable rval is set to QLA_SUCCESS, but this value is never read as
> it is overwritten later on, hence it is a redundant assignment and
> can be removed.
>
> Clean up the following clang-analyzer warning:
>
> drivers/scsi/qla2xxx/qla_init.c:4359:2: warning: Value stored to 'rval'
> is never read [clang-analyzer-deadcode.DeadStores].

Applied to 5.14/scsi-queue, thanks!

[1/1] scsi: qla2xxx: Remove redundant assignment to rval
https://git.kernel.org/mkp/scsi/c/cb9eb11fd572

--
Martin K. Petersen Oracle Linux Engineering