From: Jiri Pirko <jiri@resnulli.us>
Date: Sat, 19 Oct 2013 10:29:15 +0000 (+0200)
Subject: udp6: respect IPV6_DONTFRAG sockopt in case there are pending frames
X-Git-Tag: v3.12-rc7~20^2~10^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e36d3ff91130002c7c2d1d6a55556991da1daecc;p=pandora-kernel.git

udp6: respect IPV6_DONTFRAG sockopt in case there are pending frames

if up->pending != 0 dontfrag is left with default value -1. That
causes that application that do:
sendto len>mtu flag MSG_MORE
sendto len>mtu flag 0
will receive EMSGSIZE errno as the result of the second sendto.

This patch fixes it by respecting IPV6_DONTFRAG socket option.

introduced by:
commit 4b340ae20d0e2366792abe70f46629e576adaf5e "IPv6: Complete IPV6_DONTFRAG support"

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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