From: Anton Blanchard <anton@samba.org>
Date: Tue, 17 May 2011 19:38:57 +0000 (-0400)
Subject: net: recvmmsg: Strip MSG_WAITFORONE when calling recvmsg
X-Git-Tag: v3.0-rc1~377^2~48^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b9eb8b8752804cecbacdb4d24b52e823cf07f107;p=pandora-kernel.git

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>
---

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