From 5c78f275e696a25a9919671aa8aa3d0a3d967978 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 14 Nov 2006 21:42:26 -0800
Subject: [PATCH] [NET]: IP header modifier helpers annotations.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsfield.h | 4 ++--
include/net/inet_ecn.h | 6 +++---
include/net/ip.h | 6 +++---
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/include/net/dsfield.h b/include/net/dsfield.h
index dae8453385b6..eb65bf2e2502 100644
--- a/include/net/dsfield.h
+++ b/include/net/dsfield.h
@@ -27,7 +27,7 @@ static inline __u8 ipv6_get_dsfield(struct ipv6hdr *ipv6h)
static inline void ipv4_change_dsfield(struct iphdr *iph,__u8 mask,
__u8 value)
{
- __u32 check = ntohs(iph->check);
+ __u32 check = ntohs((__force __be16)iph->check);
__u8 dsfield;
dsfield = (iph->tos & mask) | value;
@@ -35,7 +35,7 @@ static inline void ipv4_change_dsfield(struct iphdr *iph,__u8 mask,
if ((check+1) >> 16) check = (check+1) & 0xffff;
check -= dsfield;
check += check >> 16; /* adjust carry */
- iph->check = htons(check);
+ iph->check = (__force __sum16)htons(check);
iph->tos = dsfield;
}
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index cadc0eab54fa..10117c8503e8 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -53,7 +53,7 @@ static inline __u8 INET_ECN_encapsulate(__u8 outer, __u8 inner)
static inline int IP_ECN_set_ce(struct iphdr *iph)
{
- u32 check = iph->check;
+ u32 check = (__force u32)iph->check;
u32 ecn = (iph->tos + 1) & INET_ECN_MASK;
/*
@@ -71,9 +71,9 @@ static inline int IP_ECN_set_ce(struct iphdr *iph)
* INET_ECN_ECT_1 => check += htons(0xFFFD)
* INET_ECN_ECT_0 => check += htons(0xFFFE)
*/
- check += htons(0xFFFB) + htons(ecn);
+ check += (__force u16)htons(0xFFFB) + (__force u16)htons(ecn);
- iph->check = check + (check>=0xFFFF);
+ iph->check = (__force __sum16)(check + (check>=0xFFFF));
iph->tos |= INET_ECN_CE;
return 1;
}
diff --git a/include/net/ip.h b/include/net/ip.h
index eafbcaf728fd..83cb9ac5554e 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -192,9 +192,9 @@ extern void ipfrag_init(void);
static inline
int ip_decrease_ttl(struct iphdr *iph)
{
- u32 check = iph->check;
- check += htons(0x0100);
- iph->check = check + (check>=0xFFFF);
+ u32 check = (__force u32)iph->check;
+ check += (__force u32)htons(0x0100);
+ iph->check = (__force __sum16)(check + (check>=0xFFFF));
return --iph->ttl;
}
--
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