MdeModulePkg: Add new macros and refine codes

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Ip4Dxe / Ip4Impl.c

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
index 58adba7c8c158518dcaa5ff55d8378a46fc4dc28..e733816556bf888dacb71af921da42a554860a41 100644 (file)
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
@@ -838,7 +838,7 @@ Ip4StationAddressValid (
   //\r
   // Only support the continuous net masks\r
   //\r
-  if ((Len = NetGetMaskLength (Netmask)) == IP4_MASK_NUM) {\r
+  if ((Len = NetGetMaskLength (Netmask)) == (IP4_MASK_MAX + 1)) {\r
     return FALSE;\r
   }\r
 \r