[IPV6] MROUTE: Use skb_tail_pointer(skb) instead of skb->tail.

This bug resulted in compilation error on 64bit machines.
Pointed out by Rami Rosen <roszenrami@gmail.com>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-04-05 22:17:39 +09:00
parent 12802d058a
commit 549e028d01

View file

@ -733,7 +733,7 @@ static void ip6mr_cache_resolve(struct mfc6_cache *uc, struct mfc6_cache *c)
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct ipv6hdr));
if (ip6mr_fill_mroute(skb, c, NLMSG_DATA(nlh)) > 0) {
nlh->nlmsg_len = skb->tail - (u8 *)nlh;
nlh->nlmsg_len = skb_tail_pointer(skb) - (u8 *)nlh;
} else {
nlh->nlmsg_type = NLMSG_ERROR;
nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
@ -1562,7 +1562,7 @@ ip6mr_fill_mroute(struct sk_buff *skb, struct mfc6_cache *c, struct rtmsg *rtm)
int ct;
struct rtnexthop *nhp;
struct net_device *dev = vif6_table[c->mf6c_parent].dev;
u8 *b = skb->tail;
u8 *b = skb_tail_pointer(skb);
struct rtattr *mp_head;
if (dev)
@ -1582,7 +1582,7 @@ ip6mr_fill_mroute(struct sk_buff *skb, struct mfc6_cache *c, struct rtmsg *rtm)
}
}
mp_head->rta_type = RTA_MULTIPATH;
mp_head->rta_len = skb->tail - (u8 *)mp_head;
mp_head->rta_len = skb_tail_pointer(skb) - (u8 *)mp_head;
rtm->rtm_type = RTN_MULTICAST;
return 1;