diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 06d1d5badd36ec150c0456afea5b969c30dbc308..f4e56ecd0b1ab49b0e09594e16fe996165168d11 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -6,6 +6,13 @@
#include <uapi/linux/if_tunnel.h>
#include <linux/u64_stats_sync.h>
+/*
+ * Locking : hash tables are protected by RCU and RTNL
+ */
+
+#define for_each_ip_tunnel_rcu(pos, start) \
+ for (pos = rcu_dereference(start); pos; pos = rcu_dereference(pos->next))
+
/* often modified stats are per cpu, other are shared (netdev->stats) */
struct pcpu_tstats {
u64 rx_packets;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 37000ae24c555b29de767e653b6189cfb7618f2b..127f2a1e67f58fabfa5bf31eb51d9dd3a4845e6c 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -164,12 +164,6 @@ struct ipgre_net {
#define tunnels_r tunnels[2]
#define tunnels_l tunnels[1]
#define tunnels_wc tunnels[0]
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
- for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
static struct rtnl_link_stats64 *ipgre_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *tot)
@@ -241,7 +235,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
ARPHRD_ETHER : ARPHRD_IPGRE;
int score, cand_score = 4;
- for_each_ip_tunnel_rcu(ign->tunnels_r_l[h0 ^ h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
if (local != t->parms.iph.saddr ||
remote != t->parms.iph.daddr ||
!(t->dev->flags & IFF_UP))
@@ -268,7 +262,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_r[h0 ^ h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_r[h0 ^ h1]) {
if (remote != t->parms.iph.daddr ||
!(t->dev->flags & IFF_UP))
continue;
@@ -294,7 +288,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_l[h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_l[h1]) {
if ((local != t->parms.iph.saddr &&
(local != t->parms.iph.daddr ||
!ipv4_is_multicast(local))) ||
@@ -322,7 +316,7 @@ static struct ip_tunnel *ipgre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_wc[h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_wc[h1]) {
if (t->parms.i_key != key ||
!(t->dev->flags & IFF_UP))
continue;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index e0f2c88f03c1d03427c788df49fbb60d1efe502c..516188b0dc1e4842a43350c2987de0ece26464a9 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -66,11 +66,6 @@ static void vti_tunnel_setup(struct net_device *dev);
static void vti_dev_free(struct net_device *dev);
static int vti_tunnel_bind_dev(struct net_device *dev);
-/* Locking : hash tables are protected by RCU and RTNL */
-
-#define for_each_ip_tunnel_rcu(start) \
- for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
#define VTI_XMIT(stats1, stats2) do { \
int err; \
int pkt_len = skb->len; \
@@ -133,19 +128,19 @@ static struct ip_tunnel *vti_tunnel_lookup(struct net *net,
struct ip_tunnel *t;
struct vti_net *ipn = net_generic(net, vti_net_id);
- for_each_ip_tunnel_rcu(ipn->tunnels_r_l[h0 ^ h1])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_r_l[h0 ^ h1])
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
return t;
- for_each_ip_tunnel_rcu(ipn->tunnels_r[h0])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_r[h0])
if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
return t;
- for_each_ip_tunnel_rcu(ipn->tunnels_l[h1])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_l[h1])
if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
return t;
- for_each_ip_tunnel_rcu(ipn->tunnels_wc[0])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_wc[0])
if (t && (t->dev->flags&IFF_UP))
return t;
return NULL;
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 3a4ad7d82f6765f167d8ddfc7434baf6a5373da3..099fc1c428b419e3344b9f63cb19bacb0b5d0800 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -140,13 +140,6 @@ static void ipip_tunnel_setup(struct net_device *dev);
static void ipip_dev_free(struct net_device *dev);
static struct rtnl_link_ops ipip_link_ops __read_mostly;
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
- for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
static struct rtnl_link_stats64 *ipip_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *tot)
{
@@ -189,16 +182,16 @@ static struct ip_tunnel *ipip_tunnel_lookup(struct net *net,
struct ip_tunnel *t;
struct ipip_net *ipn = net_generic(net, ipip_net_id);
- for_each_ip_tunnel_rcu(ipn->tunnels_r_l[h0 ^ h1])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_r_l[h0 ^ h1])
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
return t;
- for_each_ip_tunnel_rcu(ipn->tunnels_r[h0])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_r[h0])
if (remote == t->parms.iph.daddr && (t->dev->flags&IFF_UP))
return t;
- for_each_ip_tunnel_rcu(ipn->tunnels_l[h1])
+ for_each_ip_tunnel_rcu(t, ipn->tunnels_l[h1])
if (local == t->parms.iph.saddr && (t->dev->flags&IFF_UP))
return t;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 672101db71eecfa228c7099b13bcef4c0ee873b0..823fd64d01360802146be2ab6d0efa07df511c64 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -109,12 +109,6 @@ static u32 HASH_ADDR(const struct in6_addr *addr)
#define tunnels_r tunnels[2]
#define tunnels_l tunnels[1]
#define tunnels_wc tunnels[0]
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
- for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
static struct rtnl_link_stats64 *ip6gre_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *tot)
@@ -172,7 +166,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
ARPHRD_ETHER : ARPHRD_IP6GRE;
int score, cand_score = 4;
- for_each_ip_tunnel_rcu(ign->tunnels_r_l[h0 ^ h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
if (!ipv6_addr_equal(local, &t->parms.laddr) ||
!ipv6_addr_equal(remote, &t->parms.raddr) ||
key != t->parms.i_key ||
@@ -197,7 +191,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_r[h0 ^ h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_r[h0 ^ h1]) {
if (!ipv6_addr_equal(remote, &t->parms.raddr) ||
key != t->parms.i_key ||
!(t->dev->flags & IFF_UP))
@@ -221,7 +215,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_l[h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_l[h1]) {
if ((!ipv6_addr_equal(local, &t->parms.laddr) &&
(!ipv6_addr_equal(local, &t->parms.raddr) ||
!ipv6_addr_is_multicast(local))) ||
@@ -247,7 +241,7 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
}
}
- for_each_ip_tunnel_rcu(ign->tunnels_wc[h1]) {
+ for_each_ip_tunnel_rcu(t, ign->tunnels_wc[h1]) {
if (t->parms.i_key != key ||
!(t->dev->flags & IFF_UP))
continue;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index ffe83ef70cf79fd08dc9b95cc6ab11d5dbb54d2f..5bce2f6980444e0d1bd69254dc3c6ebfb8f4b6aa 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -81,13 +81,6 @@ struct sit_net {
struct net_device *fb_tunnel_dev;
};
-/*
- * Locking : hash tables are protected by RCU and RTNL
- */
-
-#define for_each_ip_tunnel_rcu(start) \
- for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
-
static struct rtnl_link_stats64 *ipip6_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *tot)
{
@@ -133,20 +126,20 @@ static struct ip_tunnel *ipip6_tunnel_lookup(struct net *net,
struct ip_tunnel *t;
struct sit_net *sitn = net_generic(net, sit_net_id);
- for_each_ip_tunnel_rcu(sitn->tunnels_r_l[h0 ^ h1]) {
+ for_each_ip_tunnel_rcu(t, sitn->tunnels_r_l[h0 ^ h1]) {
if (local == t->parms.iph.saddr &&
remote == t->parms.iph.daddr &&
(!dev || !t->parms.link || dev->iflink == t->parms.link) &&
(t->dev->flags & IFF_UP))
return t;
}
- for_each_ip_tunnel_rcu(sitn->tunnels_r[h0]) {
+ for_each_ip_tunnel_rcu(t, sitn->tunnels_r[h0]) {
if (remote == t->parms.iph.daddr &&
(!dev || !t->parms.link || dev->iflink == t->parms.link) &&
(t->dev->flags & IFF_UP))
return t;
}
- for_each_ip_tunnel_rcu(sitn->tunnels_l[h1]) {
+ for_each_ip_tunnel_rcu(t, sitn->tunnels_l[h1]) {
if (local == t->parms.iph.saddr &&
(!dev || !t->parms.link || dev->iflink == t->parms.link) &&
(t->dev->flags & IFF_UP))