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[IPV6]: Kill several warnings without CONFIG_IPV6_MROUTE.

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Pointed out by Andrew Morton <akpm@linux-foundation.org>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-04-10 15:41:26 +09:00
parent c0b8c32b1c
commit aba6096b21
1 changed files with 12 additions and 14 deletions
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26
net/ipv6/ip6_input.c
View file

@ -262,21 +262,23 @@ int ip6_mc_input(struct sk_buff *skb)
* is for MLD (0x0000).
*/
if ((ptr[2] | ptr[3]) == 0) {
deliver = 0;
if (!ipv6_ext_hdr(nexthdr)) {
/* BUG */
goto discard;
goto out;
}
offset = ipv6_skip_exthdr(skb, sizeof(*hdr),
&nexthdr);
if (offset < 0)
goto discard;
goto out;
if (nexthdr != IPPROTO_ICMPV6)
goto discard;
goto out;
if (!pskb_may_pull(skb, (skb_network_header(skb) +
offset + 1 - skb->data)))
goto discard;
goto out;
icmp6 = (struct icmp6hdr *)(skb_network_header(skb) + offset);
@ -285,12 +287,9 @@ int ip6_mc_input(struct sk_buff *skb)
case ICMPV6_MGM_REPORT:
case ICMPV6_MGM_REDUCTION:
case ICMPV6_MLD2_REPORT:
deliver = 1;
break;
default:
/* Bogus */
goto discard;
}
deliver = 1;
goto out;
}
/* unknown RA - process it normally */
@ -308,15 +307,14 @@ int ip6_mc_input(struct sk_buff *skb)
ip6_mr_input(skb2);
}
}
#endif
out:
if (likely(deliver)) {
#endif
if (likely(deliver))
ip6_input(skb);
return 0;
else {
/* discard */
kfree_skb(skb);
}
discard:
/* discard */
kfree_skb(skb);
return 0;
}