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authorEric Dumazet <eric.dumazet@gmail.com>2011-04-22 08:53:02 +0400
committerDavid S. Miller <davem@davemloft.net>2011-04-22 22:04:14 +0400
commitb71d1d426d263b0b6cb5760322efebbfc89d4463 (patch)
tree226ca7390bd6187ec9139d2ccedd26fd94d8e57a /net/ipv4/raw.c
parent5f8629c526b4f7e529a6d27bbd802c0dc7fcc357 (diff)
downloadlinux-b71d1d426d263b0b6cb5760322efebbfc89d4463.tar.xz
inet: constify ip headers and in6_addr
Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/raw.c')
-rw-r--r--net/ipv4/raw.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 2b50cc2da90a..abf14dbcb3b9 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -154,7 +154,7 @@ static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
* RFC 1122: SHOULD pass TOS value up to the transport layer.
* -> It does. And not only TOS, but all IP header.
*/
-static int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
+static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
{
struct sock *sk;
struct hlist_head *head;
@@ -247,7 +247,7 @@ static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)
}
if (inet->recverr) {
- struct iphdr *iph = (struct iphdr *)skb->data;
+ const struct iphdr *iph = (const struct iphdr *)skb->data;
u8 *payload = skb->data + (iph->ihl << 2);
if (inet->hdrincl)
@@ -265,7 +265,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
{
int hash;
struct sock *raw_sk;
- struct iphdr *iph;
+ const struct iphdr *iph;
struct net *net;
hash = protocol & (RAW_HTABLE_SIZE - 1);
@@ -273,7 +273,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
read_lock(&raw_v4_hashinfo.lock);
raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
if (raw_sk != NULL) {
- iph = (struct iphdr *)skb->data;
+ iph = (const struct iphdr *)skb->data;
net = dev_net(skb->dev);
while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol,
@@ -281,7 +281,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
skb->dev->ifindex)) != NULL) {
raw_err(raw_sk, skb, info);
raw_sk = sk_next(raw_sk);
- iph = (struct iphdr *)skb->data;
+ iph = (const struct iphdr *)skb->data;
}
}
read_unlock(&raw_v4_hashinfo.lock);