From: Xin Long <[email protected]>
Date: Tue, 24 Jan 2017 14:05:16 +0800
> Now sctp gso puts segments into skb's frag_list, then processes these
> segments in skb_segment. But skb_segment handles them only when gs is
> enabled, as it's in the same branch with skb's frags.
>
> Although almost all the NICs support sg other than some old ones, but
> since commit 1e16aa3ddf86 ("net: gso: use feature flag argument in all
> protocol gso handlers"), features &= skb->dev->hw_enc_features, and
> xfrm_output_gso call skb_segment with features = 0, which means sctp
> gso would call skb_segment with sg = 0, and skb_segment would not work
> as expected.
>
> This patch is to fix it by setting features param with NETIF_F_SG when
> calling skb_segment so that it can go the right branch to process the
> skb's frag_list.
>
> Signed-off-by: Xin Long <[email protected]>
Applied, thanks.
