tree 3574eb3f37289369144d96eaf0efb2eae226e989
parent 77a70f9c5b8678218a51cf2ae39a52cb4b6bc16c
author Richard Gobert <richardbgobert@gmail.com> 1661238649 +0200
committer Paolo Abeni <pabeni@redhat.com> 1661416401 +0200

net: gro: skb_gro_header helper function

Introduce a simple helper function to replace a common pattern.
When accessing the GRO header, we fetch the pointer from frag0,
then test its validity and fetch it from the skb when necessary.

This leads to the pattern
skb_gro_header_fast -> skb_gro_header_hard -> skb_gro_header_slow
recurring many times throughout GRO code.

This patch replaces these patterns with a single inlined function
call, improving code readability.

Signed-off-by: Richard Gobert <richardbgobert@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220823071034.GA56142@debian
Signed-off-by: Paolo Abeni <pabeni@redhat.com>