On Tue, 4 Dec 2018 16:26:05 -0800
Eric Dumazet <eduma...@google.com> wrote:
> > + /* skb_push() won't panic if we have room for the unaligned size
> > only */
> > + BUG_ON(skb_headroom(skb) < hh_alen);
> >
>
> What about avoiding the panic and instead call kfree_skb() ?
>
> if (WARN_ON_ONCE(skb_headroom(skb) < hh_alen)) {
> kfree_skb(skb);
> return NET_XMIT_DROP;
> }
Okay, I guess it won't go unnoticed anyway, and it's probably better
than the alternative.
> > +
> > skb_push(skb, hh_len);
> >
>
> Maybe we can use __skb_push() here, since prior safety check should be
> enough ?
Indeed, I'll change that in v2. Thanks!
--
Stefano
