On Sat, Apr 22, 2017 at 12:53 AM, David Miller <da...@davemloft.net> wrote: > From: Jamie Bainbridge <jbain...@redhat.com> > Date: Fri, 21 Apr 2017 21:18:00 +1000 > >> I cannot see the use in delivering a skb with zero bytes after the >> network header to a raw socket. > > Then it cannot be used to look at zero length UDP packets, which are > completely legal and used. > > So we must deliver it.
Understood, thank you both for the clarification. That would mean the pattern of select/ioctl/recvfrom is the incorrect way to code an IPv6 raw socket application. I will let our user know. How about the other patch in this series? That actually is a valid bug when skb are paged in a certain way. That patch does not change behaviour, it just allows ioctl to return the correct result whether data is linear or paged. Will I resubmit that patch on its own with a revised commit message? Jamie
