netdev - Re: [PATCH RFC v3 5/5] udp: Support UDP fraglist GRO/GSO.

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Date:   Thu, 19 Sep 2019 11:33:17 +0200
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Willem de Bruijn <willemdebruijn.kernel@...il.com>
CC:     Network Development <netdev@...r.kernel.org>,
        Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH RFC v3 5/5] udp: Support UDP fraglist GRO/GSO.

On Wed, Sep 18, 2019 at 12:13:26PM -0400, Willem de Bruijn wrote:
> On Wed, Sep 18, 2019 at 3:25 AM Steffen Klassert
> <steffen.klassert@...unet.com> wrote:
> >
> > This patch extends UDP GRO to support fraglist GRO/GSO
> > by using the previously introduced infrastructure.
> > All UDP packets that are not targeted to a GRO capable
> > UDP sockets are going to fraglist GRO now (local input
> > and forward).
> >
> > Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
> 
> 
> > @@ -419,7 +460,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
> >             (skb->ip_summed != CHECKSUM_PARTIAL &&
> >              NAPI_GRO_CB(skb)->csum_cnt == 0 &&
> >              !NAPI_GRO_CB(skb)->csum_valid))
> > -               goto out_unlock;
> > +               goto out;
> >
> >         /* mark that this skb passed once through the tunnel gro layer */
> >         NAPI_GRO_CB(skb)->encap_mark = 1;
> > @@ -446,8 +487,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
> >         skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
> >         pp = call_gro_receive_sk(udp_sk(sk)->gro_receive, sk, head, skb);
> >
> > -out_unlock:
> > -       rcu_read_unlock();
> > +out:
> >         skb_gro_flush_final(skb, pp, flush);
> >         return pp;
> >  }
> 
> This probably belongs in patch 1?

Yes, apparently :)