diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index d308f1228b61e389ec9de38bd48f87751fcb168c..72cc355d7a0336bfe35d06048bd5350690db4243 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -30,7 +30,7 @@ struct dccp_hdr {
 #else
 #error  "Adjust your <asm/byteorder.h> defines"
 #endif
-	__u16	dccph_checksum;
+	__sum16	dccph_checksum;
 #if defined(__LITTLE_ENDIAN_BITFIELD)
 	__u8	dccph_x:1,
 		dccph_type:4,
diff --git a/include/linux/icmp.h b/include/linux/icmp.h
index 878cfe4e587f29d0d5dd3129180227bed8bf8990..24da4fbc1a2f731c02c62f0732d6b2fb5f4f3cd8 100644
--- a/include/linux/icmp.h
+++ b/include/linux/icmp.h
@@ -68,7 +68,7 @@
 struct icmphdr {
   __u8		type;
   __u8		code;
-  __be16	checksum;
+  __sum16	checksum;
   union {
 	struct {
 		__be16	id;
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index dc79396aac2552813a04211c5193e06c43a99e35..68d3526c3a05dc55c0cbe3fa44bcb2e101d62576 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -7,7 +7,7 @@ struct icmp6hdr {
 
 	__u8		icmp6_type;
 	__u8		icmp6_code;
-	__be16		icmp6_cksum;
+	__sum16		icmp6_cksum;
 
 
 	union {
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 21dd5690527118b1987c8e24234744c501ca926d..6e7ea2f0a57c557b80c7b77de0f8bad13dafba36 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -30,7 +30,7 @@ struct igmphdr
 {
 	__u8 type;
 	__u8 code;		/* For newer IGMP */
-	__be16 csum;
+	__sum16 csum;
 	__be32 group;
 };
 
diff --git a/include/linux/ip.h b/include/linux/ip.h
index ecee9bb27d0e6db993778bb6b82169fd5b8cf8d2..1d36b971a8b53b869b4588fca445382aec25a09a 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -98,7 +98,7 @@ struct iphdr {
 	__be16	frag_off;
 	__u8	ttl;
 	__u8	protocol;
-	__be16	check;
+	__sum16	check;
 	__be32	saddr;
 	__be32	daddr;
 	/*The options start here. */
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 0aecfc9555917d2807ec02c11e685d33b62f77ff..dd61b172ac68173e487b9833a0ef5105214e6c8e 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -52,7 +52,7 @@ struct tcphdr {
 #error	"Adjust your <asm/byteorder.h> defines"
 #endif	
 	__be16	window;
-	__be16	check;
+	__sum16	check;
 	__be16	urg_ptr;
 };
 
diff --git a/include/linux/udp.h b/include/linux/udp.h
index 564f3b050105fa1b6c8a162ac38d47964431f360..7e08c07efe0fa001f59a0c0c36d03c5a2fa52590 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -23,7 +23,7 @@ struct udphdr {
 	__be16	source;
 	__be16	dest;
 	__be16	len;
-	__be16	check;
+	__sum16	check;
 };
 
 /* UDP socket options */