On Tue, Oct 30, 2018 at 11:42 AM Eric Dumazet <eduma...@google.com> wrote: > > On Tue, Oct 30, 2018 at 11:09 AM Cong Wang <xiyou.wangc...@gmail.com> wrote: > > > At least skb_header_pointer() is marked as __must_check, I don't see > > you check its return value here. > > This can not fail here. > > skb->length must be above 14+4 at this point.
Never say it is wrong, just saying what compiler thinks. > > My compiler seems to be okay with that. I wonder how compiler recognizes it as "never fail" when marked with __must_check.
