api_helper_macro mp->pid is network endian
@@ -183,7 +183,7 @@ static void vl_api_want_##lca##_t_handler ( \
p = hash_get (vam->lca##_registration_hash, mp->client_index); \
if (p) { \
if (mp->enable_disable) { \
- clib_warning ("pid %d: already enabled...", mp->pid); \
+ clib_warning ("pid %d: already enabled...", ntohl(mp->pid)); \
rv = VNET_API_ERROR_INVALID_REGISTRATION; \
goto reply; \
} else { \
