commit b9eb8b8752804cecbacdb4d24b52e823cf07f107
author Anton Blanchard <anton@samba.org> Tue May 17 15:38:57 2011 -0400
committer David S. Miller <davem@davemloft.net> Tue May 17 15:38:57 2011 -0400
tree a8f57f2fc019c8bd7249762d367e717d5d93fc29
parent 30b9284db3c77a5e20bb826cd1b66ed7b26cb726

net: recvmmsg: Strip MSG_WAITFORONE when calling recvmsg

recvmmsg fails on a raw socket with EINVAL. The reason for this is
packet_recvmsg checks the incoming flags:

        err = -EINVAL;
        if (flags & ~(MSG_PEEK|MSG_DONTWAIT|MSG_TRUNC|MSG_CMSG_COMPAT|MSG_ERRQUEUE))
                goto out;

This patch strips out MSG_WAITFORONE when calling recvmmsg which
fixes the issue.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@kernel.org [2.6.34+]
Signed-off-by: David S. Miller <davem@davemloft.net>