tree b579cbcf3f960289cfe5c586f7e38a03abc88df6
parent 9d7d74029e0f5fde3b88b39892b9b9cfdf4ea10a
author Breno Leitao <leitao@linux.vnet.ibm.com> 1220401738 -0700
committer David S. Miller <davem@davemloft.net> 1220401738 -0700

ipv: Re-enable IP when MTU > 68

Re-enable IP when the MTU gets back to a valid size. 

This patch just checks if the in_dev is NULL on a NETDEV_CHANGEMTU event
and if MTU is valid (bigger than 68), then re-enable in_dev. 

Also a function that checks valid MTU size was created.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>