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path: root/net/ipv6/ip6_tunnel.c
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Diffstat (limited to 'net/ipv6/ip6_tunnel.c')
-rw-r--r--net/ipv6/ip6_tunnel.c62
1 files changed, 25 insertions, 37 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index aa21da6a09cd..c9015fad8d65 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -18,6 +18,8 @@
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/capability.h>
#include <linux/errno.h>
@@ -60,7 +62,7 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS_NETDEV("ip6tnl0");
#ifdef IP6_TNL_DEBUG
-#define IP6_TNL_TRACE(x...) printk(KERN_DEBUG "%s:" x "\n", __func__)
+#define IP6_TNL_TRACE(x...) pr_debug("%s:" x "\n", __func__)
#else
#define IP6_TNL_TRACE(x...) do {;} while(0)
#endif
@@ -198,7 +200,7 @@ ip6_tnl_bucket(struct ip6_tnl_net *ip6n, const struct ip6_tnl_parm *p)
{
const struct in6_addr *remote = &p->raddr;
const struct in6_addr *local = &p->laddr;
- unsigned h = 0;
+ unsigned int h = 0;
int prio = 0;
if (!ipv6_addr_any(remote) || !ipv6_addr_any(local)) {
@@ -460,19 +462,14 @@ ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
struct ipv6_tlv_tnl_enc_lim *tel;
__u32 mtu;
case ICMPV6_DEST_UNREACH:
- if (net_ratelimit())
- printk(KERN_WARNING
- "%s: Path to destination invalid "
- "or inactive!\n", t->parms.name);
+ net_warn_ratelimited("%s: Path to destination invalid or inactive!\n",
+ t->parms.name);
rel_msg = 1;
break;
case ICMPV6_TIME_EXCEED:
if ((*code) == ICMPV6_EXC_HOPLIMIT) {
- if (net_ratelimit())
- printk(KERN_WARNING
- "%s: Too small hop limit or "
- "routing loop in tunnel!\n",
- t->parms.name);
+ net_warn_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
+ t->parms.name);
rel_msg = 1;
}
break;
@@ -484,17 +481,13 @@ ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
if (teli && teli == *info - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
- if (net_ratelimit())
- printk(KERN_WARNING
- "%s: Too small encapsulation "
- "limit or routing loop in "
- "tunnel!\n", t->parms.name);
+ net_warn_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
+ t->parms.name);
rel_msg = 1;
}
- } else if (net_ratelimit()) {
- printk(KERN_WARNING
- "%s: Recipient unable to parse tunneled "
- "packet!\n ", t->parms.name);
+ } else {
+ net_warn_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
+ t->parms.name);
}
break;
case ICMPV6_PKT_TOOBIG:
@@ -825,7 +818,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit)
* 0 else
**/
-static inline int
+static inline bool
ip6_tnl_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)
{
return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);
@@ -845,15 +838,12 @@ static inline int ip6_tnl_xmit_ctl(struct ip6_tnl *t)
ldev = dev_get_by_index_rcu(net, p->link);
if (unlikely(!ipv6_chk_addr(net, &p->laddr, ldev, 0)))
- printk(KERN_WARNING
- "%s xmit: Local address not yet configured!\n",
- p->name);
+ pr_warn("%s xmit: Local address not yet configured!\n",
+ p->name);
else if (!ipv6_addr_is_multicast(&p->raddr) &&
unlikely(ipv6_chk_addr(net, &p->raddr, NULL, 0)))
- printk(KERN_WARNING
- "%s xmit: Routing loop! "
- "Remote address found on this node!\n",
- p->name);
+ pr_warn("%s xmit: Routing loop! Remote address found on this node!\n",
+ p->name);
else
ret = 1;
rcu_read_unlock();
@@ -919,10 +909,8 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
if (tdev == dev) {
stats->collisions++;
- if (net_ratelimit())
- printk(KERN_WARNING
- "%s: Local routing loop detected!\n",
- t->parms.name);
+ net_warn_ratelimited("%s: Local routing loop detected!\n",
+ t->parms.name);
goto tx_err_dst_release;
}
mtu = dst_mtu(dst) - sizeof (*ipv6h);
@@ -954,7 +942,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
if (skb->sk)
skb_set_owner_w(new_skb, skb->sk);
- kfree_skb(skb);
+ consume_skb(skb);
skb = new_skb;
}
skb_dst_drop(skb);
@@ -1553,13 +1541,13 @@ static int __init ip6_tunnel_init(void)
err = xfrm6_tunnel_register(&ip4ip6_handler, AF_INET);
if (err < 0) {
- printk(KERN_ERR "ip6_tunnel init: can't register ip4ip6\n");
+ pr_err("%s: can't register ip4ip6\n", __func__);
goto out_ip4ip6;
}
err = xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6);
if (err < 0) {
- printk(KERN_ERR "ip6_tunnel init: can't register ip6ip6\n");
+ pr_err("%s: can't register ip6ip6\n", __func__);
goto out_ip6ip6;
}
@@ -1580,10 +1568,10 @@ out_pernet:
static void __exit ip6_tunnel_cleanup(void)
{
if (xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET))
- printk(KERN_INFO "ip6_tunnel close: can't deregister ip4ip6\n");
+ pr_info("%s: can't deregister ip4ip6\n", __func__);
if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
- printk(KERN_INFO "ip6_tunnel close: can't deregister ip6ip6\n");
+ pr_info("%s: can't deregister ip6ip6\n", __func__);
unregister_pernet_device(&ip6_tnl_net_ops);
}