[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

[linux-2.6-block.git] / net / ipv4 / igmp.c

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 8cedb2a2c9dfa8832a28b8f274aea8fb3681f1ee..f511d03e24392c3cebca3893161460126acb2009 100644 (file)
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -314,7 +314,9 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
 
        skb_reserve(skb, LL_RESERVED_SPACE(dev));
 
-       skb->nh.iph = pip =(struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+       skb_reset_network_header(skb);
+       pip = ip_hdr(skb);
+       skb_put(skb, sizeof(struct iphdr) + 4);
 
        pip->version  = 4;
        pip->ihl      = (sizeof(struct iphdr)+4)>>2;
@@ -343,16 +345,14 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
 
 static int igmpv3_sendpack(struct sk_buff *skb)
 {
-       struct iphdr *pip = skb->nh.iph;
+       struct iphdr *pip = ip_hdr(skb);
        struct igmphdr *pig = skb->h.igmph;
-       int iplen, igmplen;
+       const int iplen = skb->tail - skb->nh.raw;
+       const int igmplen = skb->tail - skb->h.raw;
 
-       iplen = skb->tail - (unsigned char *)skb->nh.iph;
        pip->tot_len = htons(iplen);
        ip_send_check(pip);
-
-       igmplen = skb->tail - (unsigned char *)skb->h.igmph;
-       pig->csum = ip_compute_csum((void *)skb->h.igmph, igmplen);
+       pig->csum = ip_compute_csum(skb->h.igmph, igmplen);
 
        return NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, skb->dev,
                       dst_output);
@@ -664,7 +664,9 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
 
        skb_reserve(skb, LL_RESERVED_SPACE(dev));
 
-       skb->nh.iph = iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+       skb_reset_network_header(skb);
+       iph = ip_hdr(skb);
+       skb_put(skb, sizeof(struct iphdr) + 4);
 
        iph->version  = 4;
        iph->ihl      = (sizeof(struct iphdr)+4)>>2;
@@ -2397,7 +2399,7 @@ static int igmp_mc_seq_show(struct seq_file *seq, void *v)
        return 0;
 }
 
-static struct seq_operations igmp_mc_seq_ops = {
+static const struct seq_operations igmp_mc_seq_ops = {
        .start  =       igmp_mc_seq_start,
        .next   =       igmp_mc_seq_next,
        .stop   =       igmp_mc_seq_stop,
@@ -2571,7 +2573,7 @@ static int igmp_mcf_seq_show(struct seq_file *seq, void *v)
        return 0;
 }
 
-static struct seq_operations igmp_mcf_seq_ops = {
+static const struct seq_operations igmp_mcf_seq_ops = {
        .start  =       igmp_mcf_seq_start,
        .next   =       igmp_mcf_seq_next,
        .stop   =       igmp_mcf_seq_stop,