From: Guillaume Nault <g.nault@alphalink.fr>
Date: Thu, 6 Mar 2014 10:15:10 +0000 (+0100)
Subject: l2tp: fix userspace reception on plain L2TP sockets
X-Git-Tag: v3.14-rc7~10^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e9cb6221aa7cb04765484fe87cc2d1b92edce64;p=pandora-kernel.git

l2tp: fix userspace reception on plain L2TP sockets

As pppol2tp_recv() never queues up packets to plain L2TP sockets,
pppol2tp_recvmsg() never returns data to userspace, thus making
the recv*() system calls unusable.

Instead of dropping packets when the L2TP socket isn't bound to a PPP
channel, this patch adds them to its reception queue.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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