FIB: return entry prefix by const reference to avoid the copy

[vpp.git] / src / vnet / ip / ip4_to_ip6.h

diff --git a/src/vnet/ip/ip4_to_ip6.h b/src/vnet/ip/ip4_to_ip6.h
index f2ed13d..9fedcc6 100644 (file)
--- a/src/vnet/ip/ip4_to_ip6.h
+++ b/src/vnet/ip/ip4_to_ip6.h
@@ -518,7 +518,7 @@ ip4_to_ip6_tcp_udp (vlib_buffer_t * p, ip4_to_ip6_set_fn_t fn, void *ctx)
 
       //UDP checksum is optional over IPv4 but mandatory for IPv6
       //We do not check udp->length sanity but use our safe computed value instead
-      if (PREDICT_FALSE (!checksum))
+      if (PREDICT_FALSE (!*checksum))
        {
          u16 udp_len = clib_host_to_net_u16 (ip4->length) - sizeof (*ip4);
          csum = ip_incremental_checksum (0, udp, udp_len);