From fbdc0ad095c0a299e9abf5d8ac8f58374951149a Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Thu, 22 May 2014 16:36:55 +0800
Subject: [PATCH] ipv4: initialise the itag variable in __mkroute_input

the value of itag is a random value from stack, and may not be initiated by
fib_validate_source, which called fib_combine_itag if CONFIG_IP_ROUTE_CLASSID
is not set

This will make the cached dst uncertainty

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed