[IPV6]: Clean up hop-by-hop options handler.

- Removed unused argument (nhoff) for ipv6_parse_hopopts().
- Make ipv6_parse_hopopts() to align with other extension header
  handlers.
- Removed pointless assignment (hdr), which is not used afterwards.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 4 deletions

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index d88cab7..a18d425 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -485,7 +485,7 @@ static struct tlvtype_proc tlvprochopopt_lst[] = {
 	{ -1, }
 };
 
-int ipv6_parse_hopopts(struct sk_buff *skb, int nhoff)
+int ipv6_parse_hopopts(struct sk_buff *skb)
 {
 	struct inet6_skb_parm *opt = IP6CB(skb);
 
@@ -505,7 +505,7 @@ int ipv6_parse_hopopts(struct sk_buff *skb, int nhoff)
 	if (ip6_parse_tlv(tlvprochopopt_lst, skb)) {
 		skb->h.raw += (skb->h.raw[1]+1)<<3;
 		opt->nhoff = sizeof(struct ipv6hdr);
-		return sizeof(struct ipv6hdr);
+		return 1;
 	}
 	return -1;
 }
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 29f7359..aceee25 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -114,11 +114,10 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 	}
 
 	if (hdr->nexthdr == NEXTHDR_HOP) {
-		if (ipv6_parse_hopopts(skb, IP6CB(skb)->nhoff) < 0) {
+		if (ipv6_parse_hopopts(skb) < 0) {
 			IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
 			return 0;
 		}
-		hdr = skb->nh.ipv6h;
 	}
 
 	return NF_HOOK(PF_INET6,NF_IP6_PRE_ROUTING, skb, dev, NULL, ip6_rcv_finish);