[NETNS]: Add namespace parameter to __ip_route_output_key.

This is only required to propagate it down to the
ip_route_output_slow.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 37cdea0..1176031 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -569,7 +569,7 @@
 		struct rtable *rt2;
 
 		security_skb_classify_flow(skb_in, &fl);
-		if (__ip_route_output_key(&rt, &fl))
+		if (__ip_route_output_key(&init_net, &rt, &fl))
 			goto out_unlock;
 
 		/* No need to clone since we're just using its address. */
@@ -592,7 +592,7 @@
 			goto out_unlock;
 
 		if (inet_addr_type(&init_net, fl.fl4_src) == RTN_LOCAL)
-			err = __ip_route_output_key(&rt2, &fl);
+			err = __ip_route_output_key(&init_net, &rt2, &fl);
 		else {
 			struct flowi fl2 = {};
 			struct dst_entry *odst;