Merge branch 'tip/perf/jump-label-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent

5 files changed, 43 insertions, 52 deletions

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 1712af1..c64ce0a 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -111,6 +111,10 @@ struct l2tp_net {
 	spinlock_t l2tp_session_hlist_lock;
 };
 
+static void l2tp_session_set_header_len(struct l2tp_session *session, int version);
+static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
+static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
+
 static inline struct l2tp_net *l2tp_pernet(struct net *net)
 {
 	BUG_ON(!net);
@@ -118,6 +122,34 @@ static inline struct l2tp_net *l2tp_pernet(struct net *net)
 	return net_generic(net, l2tp_net_id);
 }
 
+
+/* Tunnel reference counts. Incremented per session that is added to
+ * the tunnel.
+ */
+static inline void l2tp_tunnel_inc_refcount_1(struct l2tp_tunnel *tunnel)
+{
+	atomic_inc(&tunnel->ref_count);
+}
+
+static inline void l2tp_tunnel_dec_refcount_1(struct l2tp_tunnel *tunnel)
+{
+	if (atomic_dec_and_test(&tunnel->ref_count))
+		l2tp_tunnel_free(tunnel);
+}
+#ifdef L2TP_REFCNT_DEBUG
+#define l2tp_tunnel_inc_refcount(_t) do { \
+		printk(KERN_DEBUG "l2tp_tunnel_inc_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
+		l2tp_tunnel_inc_refcount_1(_t);				\
+	} while (0)
+#define l2tp_tunnel_dec_refcount(_t) do { \
+		printk(KERN_DEBUG "l2tp_tunnel_dec_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
+		l2tp_tunnel_dec_refcount_1(_t);				\
+	} while (0)
+#else
+#define l2tp_tunnel_inc_refcount(t) l2tp_tunnel_inc_refcount_1(t)
+#define l2tp_tunnel_dec_refcount(t) l2tp_tunnel_dec_refcount_1(t)
+#endif
+
 /* Session hash global list for L2TPv3.
  * The session_id SHOULD be random according to RFC3931, but several
  * L2TP implementations use incrementing session_ids.  So we do a real
@@ -699,8 +731,8 @@ EXPORT_SYMBOL(l2tp_recv_common);
  * Returns 1 if the packet was not a good data packet and could not be
  * forwarded.  All such packets are passed up to userspace to deal with.
  */
-int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
-		       int (*payload_hook)(struct sk_buff *skb))
+static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
+			      int (*payload_hook)(struct sk_buff *skb))
 {
 	struct l2tp_session *session = NULL;
 	unsigned char *ptr, *optr;
@@ -812,7 +844,6 @@ error:
 
 	return 1;
 }
-EXPORT_SYMBOL_GPL(l2tp_udp_recv_core);
 
 /* UDP encapsulation receive handler. See net/ipv4/udp.c.
  * Return codes:
@@ -922,7 +953,8 @@ static int l2tp_build_l2tpv3_header(struct l2tp_session *session, void *buf)
 	return bufp - optr;
 }
 
-int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb, size_t data_len)
+static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
+			  size_t data_len)
 {
 	struct l2tp_tunnel *tunnel = session->tunnel;
 	unsigned int len = skb->len;
@@ -970,7 +1002,6 @@ int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb, size_t dat
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(l2tp_xmit_core);
 
 /* Automatically called when the skb is freed.
  */
@@ -1089,7 +1120,7 @@ EXPORT_SYMBOL_GPL(l2tp_xmit_skb);
  * The tunnel context is deleted only when all session sockets have been
  * closed.
  */
-void l2tp_tunnel_destruct(struct sock *sk)
+static void l2tp_tunnel_destruct(struct sock *sk)
 {
 	struct l2tp_tunnel *tunnel;
 
@@ -1128,11 +1159,10 @@ void l2tp_tunnel_destruct(struct sock *sk)
 end:
 	return;
 }
-EXPORT_SYMBOL(l2tp_tunnel_destruct);
 
 /* When the tunnel is closed, all the attached sessions need to go too.
  */
-void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
+static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
 {
 	int hash;
 	struct hlist_node *walk;
@@ -1193,12 +1223,11 @@ again:
 	}
 	write_unlock_bh(&tunnel->hlist_lock);
 }
-EXPORT_SYMBOL_GPL(l2tp_tunnel_closeall);
 
 /* Really kill the tunnel.
  * Come here only when all sessions have been cleared from the tunnel.
  */
-void l2tp_tunnel_free(struct l2tp_tunnel *tunnel)
+static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel)
 {
 	struct l2tp_net *pn = l2tp_pernet(tunnel->l2tp_net);
 
@@ -1217,7 +1246,6 @@ void l2tp_tunnel_free(struct l2tp_tunnel *tunnel)
 	atomic_dec(&l2tp_tunnel_count);
 	kfree(tunnel);
 }
-EXPORT_SYMBOL_GPL(l2tp_tunnel_free);
 
 /* Create a socket for the tunnel, if one isn't set up by
  * userspace. This is used for static tunnels where there is no
@@ -1512,7 +1540,7 @@ EXPORT_SYMBOL_GPL(l2tp_session_delete);
 /* We come here whenever a session's send_seq, cookie_len or
  * l2specific_len parameters are set.
  */
-void l2tp_session_set_header_len(struct l2tp_session *session, int version)
+static void l2tp_session_set_header_len(struct l2tp_session *session, int version)
 {
 	if (version == L2TP_HDR_VER_2) {
 		session->hdr_len = 6;
@@ -1525,7 +1553,6 @@ void l2tp_session_set_header_len(struct l2tp_session *session, int version)
 	}
 
 }
-EXPORT_SYMBOL_GPL(l2tp_session_set_header_len);
 
 struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg)
 {
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index f0f318e..a16a48e 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -231,48 +231,15 @@ extern int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_i
 extern int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
 extern struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg);
 extern int l2tp_session_delete(struct l2tp_session *session);
-extern void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
 extern void l2tp_session_free(struct l2tp_session *session);
 extern void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb, unsigned char *ptr, unsigned char *optr, u16 hdrflags, int length, int (*payload_hook)(struct sk_buff *skb));
-extern int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb, int (*payload_hook)(struct sk_buff *skb));
 extern int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb);
 
-extern int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb, size_t data_len);
 extern int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len);
-extern void l2tp_tunnel_destruct(struct sock *sk);
-extern void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
-extern void l2tp_session_set_header_len(struct l2tp_session *session, int version);
 
 extern int l2tp_nl_register_ops(enum l2tp_pwtype pw_type, const struct l2tp_nl_cmd_ops *ops);
 extern void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type);
 
-/* Tunnel reference counts. Incremented per session that is added to
- * the tunnel.
- */
-static inline void l2tp_tunnel_inc_refcount_1(struct l2tp_tunnel *tunnel)
-{
-	atomic_inc(&tunnel->ref_count);
-}
-
-static inline void l2tp_tunnel_dec_refcount_1(struct l2tp_tunnel *tunnel)
-{
-	if (atomic_dec_and_test(&tunnel->ref_count))
-		l2tp_tunnel_free(tunnel);
-}
-#ifdef L2TP_REFCNT_DEBUG
-#define l2tp_tunnel_inc_refcount(_t) do { \
-		printk(KERN_DEBUG "l2tp_tunnel_inc_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
-		l2tp_tunnel_inc_refcount_1(_t);				\
-	} while (0)
-#define l2tp_tunnel_dec_refcount(_t) do { \
-		printk(KERN_DEBUG "l2tp_tunnel_dec_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
-		l2tp_tunnel_dec_refcount_1(_t);				\
-	} while (0)
-#else
-#define l2tp_tunnel_inc_refcount(t) l2tp_tunnel_inc_refcount_1(t)
-#define l2tp_tunnel_dec_refcount(t) l2tp_tunnel_dec_refcount_1(t)
-#endif
-
 /* Session reference counts. Incremented when code obtains a reference
  * to a session.
  */
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index 1ae6976..8d9ce0a 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -144,7 +144,6 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
 	nf_reset(skb);
 
 	if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) {
-		dev->last_rx = jiffies;
 		dev->stats.rx_packets++;
 		dev->stats.rx_bytes += data_len;
 	} else
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 226a0ae..0bf6a59 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -65,9 +65,7 @@ static struct sock *__l2tp_ip_bind_lookup(struct net *net, __be32 laddr, int dif
 			continue;
 
 		if ((l2tp->conn_id == tunnel_id) &&
-#ifdef CONFIG_NET_NS
-		    (sk->sk_net == net) &&
-#endif
+		    net_eq(sock_net(sk), net) &&
 		    !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) &&
 		    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
 			goto found;
@@ -578,7 +576,7 @@ out:
 	return copied;
 }
 
-struct proto l2tp_ip_prot = {
+static struct proto l2tp_ip_prot = {
 	.name		   = "L2TP/IP",
 	.owner		   = THIS_MODULE,
 	.init		   = l2tp_ip_open,
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index ff954b3..39a21d0 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1768,7 +1768,7 @@ static const struct proto_ops pppol2tp_ops = {
 	.ioctl		= pppox_ioctl,
 };
 
-static struct pppox_proto pppol2tp_proto = {
+static const struct pppox_proto pppol2tp_proto = {
 	.create		= pppol2tp_create,
 	.ioctl		= pppol2tp_ioctl
 };