[NET]: Annotate checksums in on-the-wire packets.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/dccp.h

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index d308f12..72cc355 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -30,7 +30,7 @@
 #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,

include/linux/icmp.h

diff --git a/include/linux/icmp.h b/include/linux/icmp.h
index 878cfe4..24da4fb 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;

include/linux/icmpv6.h

diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index dc79396..68d3526 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -7,7 +7,7 @@
 
 	__u8		icmp6_type;
 	__u8		icmp6_code;
-	__be16		icmp6_cksum;
+	__sum16		icmp6_cksum;
 
 
 	union {

include/linux/igmp.h

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 21dd569..6e7ea2f 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -30,7 +30,7 @@
 {
 	__u8 type;
 	__u8 code;		/* For newer IGMP */
-	__be16 csum;
+	__sum16 csum;
 	__be32 group;
 };
 

include/linux/ip.h

diff --git a/include/linux/ip.h b/include/linux/ip.h
index ecee9bb..1d36b97 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -98,7 +98,7 @@
 	__be16	frag_off;
 	__u8	ttl;
 	__u8	protocol;
-	__be16	check;
+	__sum16	check;
 	__be32	saddr;
 	__be32	daddr;
 	/*The options start here. */

include/linux/tcp.h

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 0aecfc9..dd61b17 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -52,7 +52,7 @@
 #error	"Adjust your <asm/byteorder.h> defines"
 #endif	
 	__be16	window;
-	__be16	check;
+	__sum16	check;
 	__be16	urg_ptr;
 };
 

include/linux/udp.h

diff --git a/include/linux/udp.h b/include/linux/udp.h
index 564f3b0..7e08c07 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -23,7 +23,7 @@
 	__be16	source;
 	__be16	dest;
 	__be16	len;
-	__be16	check;
+	__sum16	check;
 };
 
 /* UDP socket options */