[IPV4] FIB: Include nexthop device indexes in fib_info hashfn.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 3ed920b92fb67fa7fbc85735c268c4e851b348ed..0e08df4d6f9a5549e583ccd4241d99e7f1e6da6c 100644 (file)
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -194,6 +194,15 @@ static __inline__ int nh_comp(const struct fib_info *fi, const struct fib_info *
        return 0;
 }
 
+static inline unsigned int fib_devindex_hashfn(unsigned int val)
+{
+       unsigned int mask = DEVINDEX_HASHSIZE - 1;
+
+       return (val ^
+               (val >> DEVINDEX_HASHBITS) ^
+               (val >> (DEVINDEX_HASHBITS * 2))) & mask;
+}
+
 static inline unsigned int fib_info_hashfn(const struct fib_info *fi)
 {
        unsigned int mask = (fib_hash_size - 1);
@@ -202,6 +211,9 @@ static inline unsigned int fib_info_hashfn(const struct fib_info *fi)
        val ^= fi->fib_protocol;
        val ^= (__force u32)fi->fib_prefsrc;
        val ^= fi->fib_priority;
+       for_nexthops(fi) {
+               val ^= fib_devindex_hashfn(nh->nh_oif);
+       } endfor_nexthops(fi)
 
        return (val ^ (val >> 7) ^ (val >> 12)) & mask;
 }
@@ -232,15 +244,6 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi)
        return NULL;
 }
 
-static inline unsigned int fib_devindex_hashfn(unsigned int val)
-{
-       unsigned int mask = DEVINDEX_HASHSIZE - 1;
-
-       return (val ^
-               (val >> DEVINDEX_HASHBITS) ^
-               (val >> (DEVINDEX_HASHBITS * 2))) & mask;
-}
-
 /* Check, that the gateway is already configured.
    Used only by redirect accept routine.
  */