Files
linux/include/net
Eric Dumazet c7583e9f76 net: gro: enable fast path for more cases
Currently the so-called GRO fast path is only enabled for
napi_frags_skb() callers.

After the prior patch, we no longer have to clear frag0 whenever
we pulled bytes to skb->head.

We therefore can initialize frag0 to skb->data so that GRO
fast path can be used in the following additional cases:

- Drivers using header split (populating skb->data with headers,
  and having payload in one or more page fragments).

- Drivers not using any page frag (entire packet is in skb->data)

Add a likely() in skb_gro_may_pull() to help the compiler
to generate better code if possible.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-03-05 13:30:11 +01:00
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