tree b9889fdb4cdec87152a3657e69e39fd27bbb5243
parent a1a0b558ce89a8e46b2c9d1cd847e0d728f97e00
author Li Wei <lw@cn.fujitsu.com> 1422518943 +0800
committer David S. Miller <davem@davemloft.net> 1422574139 -0800

ipv4: Don't increase PMTU with Datagram Too Big message.

RFC 1191 said, "a host MUST not increase its estimate of the Path
MTU in response to the contents of a Datagram Too Big message."

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>