X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip_packet.h;h=b0b5f41260cf6012e354e08335e09b6f2568cc93;hb=1bc46cd6e3df29996e528c754bc574c57182cf61;hp=c160deefbeb2814112e866bf349846611e95b4a6;hpb=ef0bac70995bb225fea8955009b34d5b823285ba;p=vpp.git

diff --git a/src/vnet/ip/ip_packet.h b/src/vnet/ip/ip_packet.h
index c160deefbeb..b0b5f41260c 100644
--- a/src/vnet/ip/ip_packet.h
+++ b/src/vnet/ip/ip_packet.h
@@ -211,7 +211,7 @@ ip_csum (void *data, u16 n_left)
 
   sum8 = u32x8_hadd (sum8, zero);
   sum4 = u32x8_extract_lo (sum8) + u32x8_extract_hi (sum8);
-  sum = sum4[0] + sum4[1];
+  sum += sum4[0] + sum4[1];
 
 #else
   /* scalar version */