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authorDavid S. Miller <davem@davemloft.net>2012-06-08 23:24:18 -0700
committerDavid S. Miller <davem@davemloft.net>2012-06-08 23:24:18 -0700
commitfbfe95a42e90b3dd079cc9019ba7d7700feee0f6 (patch)
treef5f16e6efcf1411a47df8b836f669fc452489dd4 /net/ipv6
parent7123aaa3a1416529ce461e98108e6b343b294643 (diff)
inet: Create and use rt{,6}_get_peer_create().
There's a lot of places that open-code rt{,6}_get_peer() only because they want to set 'create' to one. So add an rt{,6}_get_peer_create() for their sake. There were also a few spots open-coding plain rt{,6}_get_peer() and those are transformed here as well. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/icmp.c6
-rw-r--r--net/ipv6/ip6_output.c11
-rw-r--r--net/ipv6/ndisc.c6
-rw-r--r--net/ipv6/route.c5
-rw-r--r--net/ipv6/tcp_ipv6.c4
5 files changed, 12 insertions, 20 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 091a2971c7b..ed89bba745a 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -188,14 +188,14 @@ static inline bool icmpv6_xrlim_allow(struct sock *sk, u8 type,
} else {
struct rt6_info *rt = (struct rt6_info *)dst;
int tmo = net->ipv6.sysctl.icmpv6_time;
+ struct inet_peer *peer;
/* Give more bandwidth to wider prefixes. */
if (rt->rt6i_dst.plen < 128)
tmo >>= ((128 - rt->rt6i_dst.plen)>>5);
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
- res = inet_peer_xrlim_allow(rt->rt6i_peer, tmo);
+ peer = rt6_get_peer_create(rt);
+ res = inet_peer_xrlim_allow(peer, tmo);
}
dst_release(dst);
return res;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 17b8c67998b..62fcf3e48ac 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -463,6 +463,7 @@ int ip6_forward(struct sk_buff *skb)
*/
if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) {
struct in6_addr *target = NULL;
+ struct inet_peer *peer;
struct rt6_info *rt;
/*
@@ -476,13 +477,12 @@ int ip6_forward(struct sk_buff *skb)
else
target = &hdr->daddr;
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
+ peer = rt6_get_peer_create(rt);
/* Limit redirects both by destination (here)
and by source (inside ndisc_send_redirect)
*/
- if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
+ if (inet_peer_xrlim_allow(peer, 1*HZ))
ndisc_send_redirect(skb, target);
} else {
int addrtype = ipv6_addr_type(&hdr->saddr);
@@ -602,11 +602,8 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
int old, new;
if (rt && !(rt->dst.flags & DST_NOPEER)) {
- struct inet_peer *peer;
+ struct inet_peer *peer = rt6_get_peer_create(rt);
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
- peer = rt->rt6i_peer;
if (peer) {
fhdr->identification = htonl(inet_getid(peer, 0));
return;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 54f62d3b8dd..69a6330dea9 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1472,6 +1472,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
struct net *net = dev_net(dev);
struct sock *sk = net->ipv6.ndisc_sk;
int len = sizeof(struct icmp6hdr) + 2 * sizeof(struct in6_addr);
+ struct inet_peer *peer;
struct sk_buff *buff;
struct icmp6hdr *icmph;
struct in6_addr saddr_buf;
@@ -1518,9 +1519,8 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
"Redirect: destination is not a neighbour\n");
goto release;
}
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
- if (!inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ))
+ peer = rt6_get_peer_create(rt);
+ if (!inet_peer_xrlim_allow(peer, 1*HZ))
goto release;
if (dev->addr_len) {
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 4eca0130cce..8a986be4aed 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -99,10 +99,7 @@ static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old)
if (!(rt->dst.flags & DST_HOST))
return NULL;
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
-
- peer = rt->rt6i_peer;
+ peer = rt6_get_peer_create(rt);
if (peer) {
u32 *old_p = __DST_METRICS_PTR(old);
unsigned long prev, new;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 1a9cdd09f11..218433cb992 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1744,9 +1744,7 @@ static struct inet_peer *tcp_v6_get_peer(struct sock *sk, bool *release_it)
peer = inet_getpeer_v6(net, &np->daddr, 1);
*release_it = true;
} else {
- if (!rt->rt6i_peer)
- rt6_bind_peer(rt, 1);
- peer = rt->rt6i_peer;
+ peer = rt6_get_peer_create(rt);
*release_it = false;
}