Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 38 insertions, 8 deletions

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4abdcb220e3a..8df15ad0d43f 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -134,10 +134,12 @@ struct l2cap_conninfo {
 #define L2CAP_FCS_CRC16		0x01
 
 /* L2CAP fixed channels */
-#define L2CAP_FC_L2CAP		0x02
+#define L2CAP_FC_SIG_BREDR	0x02
 #define L2CAP_FC_CONNLESS	0x04
 #define L2CAP_FC_A2MP		0x08
-#define L2CAP_FC_6LOWPAN        0x3e /* reserved and temporary value */
+#define L2CAP_FC_ATT		0x10
+#define L2CAP_FC_SIG_LE		0x20
+#define L2CAP_FC_SMP_LE		0x40
 
 /* L2CAP Control Field bit masks */
 #define L2CAP_CTRL_SAR			0xC000
@@ -579,7 +581,7 @@ struct l2cap_chan {
 	struct list_head	global_l;
 
 	void			*data;
-	struct l2cap_ops	*ops;
+	const struct l2cap_ops	*ops;
 	struct mutex		lock;
 };
 
@@ -600,7 +602,12 @@ struct l2cap_ops {
 	void			(*set_shutdown) (struct l2cap_chan *chan);
 	long			(*get_sndtimeo) (struct l2cap_chan *chan);
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
+					       unsigned long hdr_len,
 					       unsigned long len, int nb);
+	int			(*memcpy_fromiovec) (struct l2cap_chan *chan,
+						     unsigned char *kdata,
+						     struct iovec *iov,
+						     int len);
 };
 
 struct l2cap_conn {
@@ -618,11 +625,10 @@ struct l2cap_conn {
 
 	struct delayed_work	info_timer;
 
-	spinlock_t		lock;
-
 	struct sk_buff		*rx_skb;
 	__u32			rx_len;
 	__u8			tx_ident;
+	struct mutex		ident_lock;
 
 	struct sk_buff_head	pending_rx;
 	struct work_struct	pending_rx_work;
@@ -856,6 +862,31 @@ static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
 	return 0;
 }
 
+static inline int l2cap_chan_no_memcpy_fromiovec(struct l2cap_chan *chan,
+						 unsigned char *kdata,
+						 struct iovec *iov,
+						 int len)
+{
+	/* Following is safe since for compiler definitions of kvec and
+	 * iovec are identical, yielding the same in-core layout and alignment
+	 */
+	struct kvec *vec = (struct kvec *)iov;
+
+	while (len > 0) {
+		if (vec->iov_len) {
+			int copy = min_t(unsigned int, len, vec->iov_len);
+			memcpy(kdata, vec->iov_base, copy);
+			len -= copy;
+			kdata += copy;
+			vec->iov_base += copy;
+			vec->iov_len -= copy;
+		}
+		vec++;
+	}
+
+	return 0;
+}
+
 extern bool disable_ertm;
 
 int l2cap_init_sockets(void);
@@ -872,10 +903,9 @@ struct l2cap_chan *l2cap_chan_create(void);
 void l2cap_chan_close(struct l2cap_chan *chan, int reason);
 int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		       bdaddr_t *dst, u8 dst_type);
-int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
-								u32 priority);
+int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
 void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
-int l2cap_chan_check_security(struct l2cap_chan *chan);
+int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator);
 void l2cap_chan_set_defaults(struct l2cap_chan *chan);
 int l2cap_ertm_init(struct l2cap_chan *chan);
 void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan);