[IPV6]: Clean up BACKTRACK().

The fn check is unnecessary as fn can never be NULL in BACKTRACK().

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a1b0f075462e0e64fd76a91cd6696765e0f8b6e4..263c057d17c6d96fad3d15e2a7990633ec96f6b7 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -484,7 +484,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 do { \
        if (rt == &ip6_null_entry) { \
                struct fib6_node *pn; \
-               while (fn) { \
+               while (1) { \
                        if (fn->fn_flags & RTN_TL_ROOT) \
                                goto out; \
                        pn = fn->parent; \