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ipv6: remove rcv_tclass of ipv6_pinfo 

tclass information in now already stored in rcv_flowinfo
We do not need to store the same information twice.

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florent Fourcot 2013-12-08 15:46:59 +01:00 committed by David S. Miller
parent 37cfee909c
commit 82e9f105a2
3 changed files with 2 additions and 7 deletions
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1
include/linux/ipv6.h
View File

@ -200,7 +200,6 @@ struct ipv6_pinfo {
dontfrag:1;
__u8 min_hopcount;
__u8 tclass;
__u8 rcv_tclass;
__be32 rcv_flowinfo;
__u32 dst_cookie;

2
net/ipv6/ipv6_sockglue.c
View File

@ -1019,7 +1019,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.rxtclass) {
int tclass = np->rcv_tclass;
int tclass = ntohl(np->rcv_flowinfo & IPV6_TCLASS_MASK) >> 20;
put_cmsg(&msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
}
if (np->rxopt.bits.rxoinfo) {

6
net/ipv6/tcp_ipv6.c
View File

@ -1135,7 +1135,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
newnp->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(skb));
newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb));
/*
@ -1216,7 +1215,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
newnp->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(skb));
newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb));
/* Clone native IPv6 options from listening socket (if any)
@ -1427,9 +1425,7 @@ ipv6_pktoptions:
np->mcast_oif = inet6_iif(opt_skb);
if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim)
np->mcast_hops = ipv6_hdr(opt_skb)->hop_limit;
if (np->rxopt.bits.rxtclass)
np->rcv_tclass = ipv6_get_dsfield(ipv6_hdr(opt_skb));
if (np->rxopt.bits.rxflow)
if (np->rxopt.bits.rxflow || np->rxopt.bits.rxtclass)
np->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(opt_skb));
if (ipv6_opt_accepted(sk, opt_skb)) {
skb_set_owner_r(opt_skb, sk);