tree d92b582ce75873973b4fed7d4b2c1dd5fdf18b82
parent f2e5ddcc0d12f9c4c7b254358ad245c9dddce13b
author Jiri Pirko <jiri@resnulli.us> 1382178555 +0200
committer David S. Miller <davem@davemloft.net> 1382224852 -0400

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>