arp/glean: fix hash computation

Change-Id: Ifef8a9328bb865f6ddb041bafe3699153f89755a
Signed-off-by: Florin Coras <fcoras@cisco.com>

diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index ec4287b..b3de120 100755 (executable)
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -2032,11 +2032,12 @@ ip4_arp_inline (vlib_main_t * vm,
            }
          b0 ^= sw_if_index0;
 
+         hash_v3_mix32 (a0, b0, c0);
          hash_v3_finalize32 (a0, b0, c0);
 
          c0 &= BITS (hash_bitmap) - 1;
-         c0 = c0 / BITS (uword);
          m0 = (uword) 1 << (c0 % BITS (uword));
+         c0 = c0 / BITS (uword);
 
          bm0 = hash_bitmap[c0];
          drop0 = (bm0 & m0) != 0;