ipv6: ip6_route_output does not modify sk parameter, so make it const

This avoids explicit cast to avoid 'discards qualifiers'
compiler warning in a netfilter patch that i've been working on.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 642a80bb42cf..c850e5fb967c 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -70,7 +70,7 @@ static inline struct inet_peer *rt6_get_peer(struct rt6_info *rt)
 extern void                     ip6_route_input(struct sk_buff *skb);
 
 extern struct dst_entry *       ip6_route_output(struct net *net,
-                                                 struct sock *sk,
+                                                 const struct sock *sk,
                                                  struct flowi6 *fl6);
 
 extern int                      ip6_route_init(void);