* [PATCH 5/9] drivers/scsi: Eliminate useless code
@ 2010-01-16 15:58 Julia Lawall
2010-01-22 0:16 ` Jing Huang
0 siblings, 1 reply; 2+ messages in thread
From: Julia Lawall @ 2010-01-16 15:58 UTC (permalink / raw)
To: Jing Huang, James E.J. Bottomley, linux-scsi, linux-kernel,
kernel-janitors
From: Julia Lawall <julia@diku.dk>
The variable bfa_itnim is initialized twice to the same (side effect-free)
expression. Drop one initialization.
A simplified version of the semantic match that finds this problem is:
(http://coccinelle.lip6.fr/)
// <smpl>
@forall@
idexpression *x;
identifier f!=ERR_PTR;
@@
x = f(...)
... when != x
(
x = f(...,<+...x...+>,...)
|
* x = f(...)
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
---
drivers/scsi/bfa/bfad_im.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index f788c2a..37b0fa1 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -243,9 +243,8 @@ bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd,
struct bfa_itnim_s *bfa_itnim;
bfa_status_t rc = BFA_STATUS_OK;
- bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd);
if (!tskim) {
BFA_DEV_PRINTF(bfad, BFA_ERR,
^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH 5/9] drivers/scsi: Eliminate useless code
2010-01-16 15:58 [PATCH 5/9] drivers/scsi: Eliminate useless code Julia Lawall
@ 2010-01-22 0:16 ` Jing Huang
0 siblings, 0 replies; 2+ messages in thread
From: Jing Huang @ 2010-01-22 0:16 UTC (permalink / raw)
To: Julia Lawall, James E.J. Bottomley, linux-scsi, linux-kernel,
kernel-janitors
Acked-by: Jing Huang <huangj@brocade.com>
> -----Original Message-----
> From: Julia Lawall [mailto:julia@diku.dk]
> Sent: Saturday, January 16, 2010 7:59 AM
> To: Jing Huang; James E.J. Bottomley; linux-scsi@vger.kernel.org; linux-
> kernel@vger.kernel.org; kernel-janitors@vger.kernel.org
> Subject: [PATCH 5/9] drivers/scsi: Eliminate useless code
>
> From: Julia Lawall <julia@diku.dk>
>
> The variable bfa_itnim is initialized twice to the same (side effect-free)
> expression. Drop one initialization.
>
> A simplified version of the semantic match that finds this problem is:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @forall@
> idexpression *x;
> identifier f!=ERR_PTR;
> @@
>
> x = f(...)
> ... when != x
> (
> x = f(...,<+...x...+>,...)
> |
> * x = f(...)
> )
> // </smpl>
>
> Signed-off-by: Julia Lawall <julia@diku.dk>
>
> ---
> drivers/scsi/bfa/bfad_im.c | 1 -
> 1 files changed, 0 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
> index f788c2a..37b0fa1 100644
> --- a/drivers/scsi/bfa/bfad_im.c
> +++ b/drivers/scsi/bfa/bfad_im.c
> @@ -243,9 +243,8 @@ bfad_im_target_reset_send(struct bfad_s *bfad, struct
> scsi_cmnd *cmnd,
> struct bfa_itnim_s *bfa_itnim;
> bfa_status_t rc = BFA_STATUS_OK;
>
> - bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
> tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd);
> if (!tskim) {
> BFA_DEV_PRINTF(bfad, BFA_ERR,
^ permalink raw reply [flat|nested] 2+ messages in thread
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