* [PATCH] scsi: fcoe: remove redundant call to skb_transport_header
@ 2019-08-15 9:14 Colin King
2019-08-29 21:45 ` Martin K. Petersen
0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2019-08-15 9:14 UTC (permalink / raw)
To: Hannes Reinecke, James E . J . Bottomley, Martin K . Petersen,
linux-scsi
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
Pointer fh is being assigned a return value from the call to
skb_transport_header however this value is never read and fh
is being re-assigned immediately afterwards with a new value.
Since there are side-effects from calling skb_transport_header
the call is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/scsi/fcoe/fcoe.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 587d4bbb7d22..6fd61555120a 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1617,7 +1617,6 @@ static inline int fcoe_filter_frames(struct fc_lport *lport,
else
fr_flags(fp) |= FCPHF_CRC_UNCHECKED;
- fh = (struct fc_frame_header *) skb_transport_header(skb);
fh = fc_frame_header_get(fp);
if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA && fh->fh_type == FC_TYPE_FCP)
return 0;
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] scsi: fcoe: remove redundant call to skb_transport_header
2019-08-15 9:14 [PATCH] scsi: fcoe: remove redundant call to skb_transport_header Colin King
@ 2019-08-29 21:45 ` Martin K. Petersen
0 siblings, 0 replies; 2+ messages in thread
From: Martin K. Petersen @ 2019-08-29 21:45 UTC (permalink / raw)
To: Colin King
Cc: Hannes Reinecke, James E . J . Bottomley, Martin K . Petersen,
linux-scsi, kernel-janitors, linux-kernel
Colin,
> Pointer fh is being assigned a return value from the call to
> skb_transport_header however this value is never read and fh is being
> re-assigned immediately afterwards with a new value. Since there are
> side-effects from calling skb_transport_header the call is redundant
> and can be removed.
Applied to 5.4/scsi-queue. Thanks!
--
Martin K. Petersen Oracle Linux Engineering
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