tree 9ef5eb3e95c7ff55e975515a624ec7dd16a5c672
parent 96dbdc5d8c48d438bb372fc3662c9a34fb44b498
author Soheil Hassas Yeganeh <soheil@google.com> 1519773760 -0500
committer David S. Miller <davem@davemloft.net> 1519957669 -0500

socket: skip checking sk_err for recvmmsg(MSG_ERRQUEUE)

recvmmsg does not call ___sys_recvmsg when sk_err is set.
That is fine for normal reads but, for MSG_ERRQUEUE, recvmmsg
should always call ___sys_recvmsg regardless of sk->sk_err to
be able to clear error queue. Otherwise, users are not able to
drain the error queue using recvmmsg.

Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>