diff mbox series

[net-next,v2,2/2] skbuff: Add likely to skb pointer in build_skb()

Message ID 20230308131720.2103611-3-gal@nvidia.com (mailing list archive)
State Accepted
Commit 3c6401266f91c69771176d3b289abfeaec731611
Delegated to: Netdev Maintainers
Headers show
Series Couple of minor improvements to build_skb variants | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 20 this patch: 20
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 20 this patch: 20
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Gal Pressman March 8, 2023, 1:17 p.m. UTC 
Similarly to napi_build_skb(), it is likely the skb allocation in
build_skb() succeeded. frag_size != 0 is also likely, as stated in
__build_skb_around().

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
---
 net/core/skbuff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Simon Horman March 9, 2023, 1:33 p.m. UTC | #1 
On Wed, Mar 08, 2023 at 03:17:20PM +0200, Gal Pressman wrote:
> Similarly to napi_build_skb(), it is likely the skb allocation in
> build_skb() succeeded. frag_size != 0 is also likely, as stated in
> __build_skb_around().
> 
> Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
> Signed-off-by: Gal Pressman <gal@nvidia.com>
> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>

Reviewed-by: Simon Horman <simon.horman@corigine.com>
diff mbox series

Patch

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 5c1a65cc2f39..34df1aa0584b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -420,7 +420,7 @@  struct sk_buff *build_skb(void *data, unsigned int frag_size)
 {
 	struct sk_buff *skb = __build_skb(data, frag_size);
 
-	if (skb && frag_size) {
+	if (likely(skb && frag_size)) {
 		skb->head_frag = 1;
 		skb_propagate_pfmemalloc(virt_to_head_page(data), skb);
 	}