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author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-04-22 04:53:02 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2011-04-22 11:04:14 -0700 |
commit | b71d1d426d263b0b6cb5760322efebbfc89d4463 (patch) | |
tree | 226ca7390bd6187ec9139d2ccedd26fd94d8e57a /net/ipv6/udp.c | |
parent | 5f8629c526b4f7e529a6d27bbd802c0dc7fcc357 (diff) | |
download | lwn-b71d1d426d263b0b6cb5760322efebbfc89d4463.tar.gz lwn-b71d1d426d263b0b6cb5760322efebbfc89d4463.zip |
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/ipv6/udp.c')
-rw-r--r-- | net/ipv6/udp.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 15c37746845e..1bdc5f053db8 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -311,7 +311,7 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb, struct udp_table *udptable) { struct sock *sk; - struct ipv6hdr *iph = ipv6_hdr(skb); + const struct ipv6hdr *iph = ipv6_hdr(skb); if (unlikely(sk = skb_steal_sock(skb))) return sk; @@ -463,9 +463,9 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt, struct udp_table *udptable) { struct ipv6_pinfo *np; - struct ipv6hdr *hdr = (struct ipv6hdr*)skb->data; - struct in6_addr *saddr = &hdr->saddr; - struct in6_addr *daddr = &hdr->daddr; + const struct ipv6hdr *hdr = (const struct ipv6hdr *)skb->data; + const struct in6_addr *saddr = &hdr->saddr; + const struct in6_addr *daddr = &hdr->daddr; struct udphdr *uh = (struct udphdr*)(skb->data+offset); struct sock *sk; int err; @@ -553,8 +553,8 @@ drop_no_sk_drops_inc: } static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk, - __be16 loc_port, struct in6_addr *loc_addr, - __be16 rmt_port, struct in6_addr *rmt_addr, + __be16 loc_port, const struct in6_addr *loc_addr, + __be16 rmt_port, const struct in6_addr *rmt_addr, int dif) { struct hlist_nulls_node *node; @@ -633,7 +633,7 @@ drop: * so we don't need to lock the hashes. */ static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb, - struct in6_addr *saddr, struct in6_addr *daddr, + const struct in6_addr *saddr, const struct in6_addr *daddr, struct udp_table *udptable) { struct sock *sk, *stack[256 / sizeof(struct sock *)]; @@ -716,7 +716,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable, struct net *net = dev_net(skb->dev); struct sock *sk; struct udphdr *uh; - struct in6_addr *saddr, *daddr; + const struct in6_addr *saddr, *daddr; u32 ulen = 0; if (!pskb_may_pull(skb, sizeof(struct udphdr))) @@ -1278,7 +1278,7 @@ int compat_udpv6_getsockopt(struct sock *sk, int level, int optname, static int udp6_ufo_send_check(struct sk_buff *skb) { - struct ipv6hdr *ipv6h; + const struct ipv6hdr *ipv6h; struct udphdr *uh; if (!pskb_may_pull(skb, sizeof(*uh))) @@ -1382,7 +1382,7 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket { struct inet_sock *inet = inet_sk(sp); struct ipv6_pinfo *np = inet6_sk(sp); - struct in6_addr *dest, *src; + const struct in6_addr *dest, *src; __u16 destp, srcp; dest = &np->daddr; |