diff options
| author | Pavel Emelyanov <xemul@parallels.com> | 2012-08-08 21:53:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-09 16:18:07 -0700 |
| commit | 1fb9489bf190ce2b3fc03891f3de4b2d30600e28 (patch) | |
| tree | da4e17036949e72ae0b1f0fc3b6b31557de18353 /net/ipv4 | |
| parent | aa79e66eee5d525e2fcbd2a5fcb87ae3dd4aa9e9 (diff) | |
net: Loopback ifindex is constant now
As pointed out, there are places, that access net->loopback_dev->ifindex
and after ifindex generation is made per-net this value becomes constant
equals 1. So go ahead and introduce the LOOPBACK_IFINDEX constant and use
it where appropriate.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 2 | ||||
| -rw-r--r-- | net/ipv4/ipmr.c | 2 | ||||
| -rw-r--r-- | net/ipv4/netfilter/ipt_rpfilter.c | 2 | ||||
| -rw-r--r-- | net/ipv4/route.c | 6 |
4 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index c43ae3fba79..7f073a38c87 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -218,7 +218,7 @@ __be32 fib_compute_spec_dst(struct sk_buff *skb) scope = RT_SCOPE_UNIVERSE; if (!ipv4_is_zeronet(ip_hdr(skb)->saddr)) { fl4.flowi4_oif = 0; - fl4.flowi4_iif = net->loopback_dev->ifindex; + fl4.flowi4_iif = LOOPBACK_IFINDEX; fl4.daddr = ip_hdr(skb)->saddr; fl4.saddr = 0; fl4.flowi4_tos = RT_TOS(ip_hdr(skb)->tos); diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 8eec8f4a053..3a57570c8ee 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1798,7 +1798,7 @@ static struct mr_table *ipmr_rt_fib_lookup(struct net *net, struct sk_buff *skb) .flowi4_oif = (rt_is_output_route(rt) ? skb->dev->ifindex : 0), .flowi4_iif = (rt_is_output_route(rt) ? - net->loopback_dev->ifindex : + LOOPBACK_IFINDEX : skb->dev->ifindex), .flowi4_mark = skb->mark, }; diff --git a/net/ipv4/netfilter/ipt_rpfilter.c b/net/ipv4/netfilter/ipt_rpfilter.c index 31371be8174..c30130062cd 100644 --- a/net/ipv4/netfilter/ipt_rpfilter.c +++ b/net/ipv4/netfilter/ipt_rpfilter.c @@ -85,7 +85,7 @@ static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par) return ipv4_is_local_multicast(iph->daddr) ^ invert; flow.flowi4_iif = 0; } else { - flow.flowi4_iif = dev_net(par->in)->loopback_dev->ifindex; + flow.flowi4_iif = LOOPBACK_IFINDEX; } flow.daddr = iph->saddr; diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 21ad369014c..c58137391a3 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1619,7 +1619,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, if (res.type == RTN_LOCAL) { err = fib_validate_source(skb, saddr, daddr, tos, - net->loopback_dev->ifindex, + LOOPBACK_IFINDEX, dev, in_dev, &itag); if (err < 0) goto martian_source_keep_err; @@ -1895,7 +1895,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4) orig_oif = fl4->flowi4_oif; - fl4->flowi4_iif = net->loopback_dev->ifindex; + fl4->flowi4_iif = LOOPBACK_IFINDEX; fl4->flowi4_tos = tos & IPTOS_RT_MASK; fl4->flowi4_scope = ((tos & RTO_ONLINK) ? RT_SCOPE_LINK : RT_SCOPE_UNIVERSE); @@ -1984,7 +1984,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4) if (!fl4->daddr) fl4->daddr = fl4->saddr = htonl(INADDR_LOOPBACK); dev_out = net->loopback_dev; - fl4->flowi4_oif = net->loopback_dev->ifindex; + fl4->flowi4_oif = LOOPBACK_IFINDEX; res.type = RTN_LOCAL; flags |= RTCF_LOCAL; goto make_route; |