From: Eric Dumazet <eric.duma...@gmail.com>
Date: Tue, 31 May 2016 15:22:41 -0700
> From: Eric Dumazet <eduma...@google.com>
>
> In commit e6afc8ace6dd5 ("udp: remove headers from UDP packets before
> queueing"), udp_csum_pull_header() helper was added but missed fact
> that CHECKSUM_UNNECESSARY packets were now converted to CHECKSUM_NONE
> and skb->csum_valid was set to 1 for them.
>
> Since csum_partial() is quite expensive, even for 8-byte area, it is
> worth adding a test.
>
> We also can use skb->data instead of udp_hdr() as we are pulling
> UDP headers, as it is sightly faster.
>
> Signed-off-by: Eric Dumazet <eduma...@google.com>
Applied, thanks Eric.
