X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FNetwork%2FIp4Dxe%2FIp4Igmp.c;h=6609b1334d8aa7cb86ec49aa08d0aba0b4f65fe0;hp=135efa62ce99085b78dd2a690efb670684b584ff;hb=687a2e5f6902fa26c7a1d7a7705e0747c4095125;hpb=4a8f7cceccde9f40f55cae415e10d80906a84919

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Igmp.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Igmp.c
index 135efa62ce..6609b1334d 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Igmp.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Igmp.c
@@ -206,7 +206,7 @@ Ip4SendIgmpMessage (
   Igmp->MaxRespTime = 0;
   Igmp->Checksum    = 0;
   Igmp->Group       = HTONL (Group);
-  Igmp->Checksum    = ~NetblockChecksum ((UINT8 *) Igmp, sizeof (IGMP_HEAD));
+  Igmp->Checksum    = (UINT16) (~NetblockChecksum ((UINT8 *) Igmp, sizeof (IGMP_HEAD)));
 
   Head.Tos          = 0;
   Head.Protocol     = IP4_PROTO_IGMP;