vppinfra: bihash walk cb typedef and continue/stop controls

Type: feature

Change-Id: I28f7a658be3f3beec9ea32635b60d1d3a10d9b06
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/ip/reass/ip6_full_reass.c b/src/vnet/ip/reass/ip6_full_reass.c
index 7f56d2c..7bcfdfc 100644
--- a/src/vnet/ip/reass/ip6_full_reass.c
+++ b/src/vnet/ip/reass/ip6_full_reass.c
@@ -1349,7 +1349,7 @@
   clib_bihash_48_8_t *new_hash;
 } ip6_rehash_cb_ctx;
 
-static void
+static int
 ip6_rehash_cb (clib_bihash_kv_48_8_t * kv, void *_ctx)
 {
   ip6_rehash_cb_ctx *ctx = _ctx;
@@ -1357,6 +1357,7 @@
     {
       ctx->failure = 1;
     }
+  return (BIHASH_WALK_CONTINUE);
 }
 
 static void