Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

John Linville says:

Here are three more fixes that some of my developers are desperate to
see included in 3.4...

Johan Hedberg went to some length justifyng the inclusion of these two
Bluetooth fixes:

"The device_connected fix should be quite self-explanatory, but it's
actually a wider issue than just for keyboards. All profiles that do
incoming connection authorization (e.g. headsets) will break without it
with specific hardware. The reason it wasn't caught earlier is that it
only occurs with specific Bluetooth adapters.

As for the security level patch, this fixes L2CAP socket based security
level elevation during a connection. The HID profile needs this (for
keyboards) and it is the only way to achieve the security level
elevation when using the management interface to talk to the kernel
(hence the management enabling patch being the one that exposes this"

The rtlwifi fix addresses a regression related to firmware loading,
as described in kernel.org bug 43187.  It basically just moves a hunk
of code to a more appropriate place.

Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 31 insertions, 7 deletions

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 72eb187a5f60..6fb68a9743af 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -450,7 +450,7 @@ unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wa
 			sk->sk_state == BT_CONFIG)
 		return mask;
 
-	if (sock_writeable(sk))
+	if (!bt_sk(sk)->suspended && sock_writeable(sk))
 		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
 	else
 		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index edfd61addcec..d6dc44cd15b0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2784,6 +2784,14 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	if (conn) {
 		hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);
 
+		hci_dev_lock(hdev);
+		if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
+		    !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+			mgmt_device_connected(hdev, &conn->dst, conn->type,
+					      conn->dst_type, 0, NULL, 0,
+					      conn->dev_class);
+		hci_dev_unlock(hdev);
+
 		/* Send to upper protocol */
 		l2cap_recv_acldata(conn, skb, flags);
 		return;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 6c065254afc0..1266f78fa8e3 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2039,6 +2039,12 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
 
 		clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
 
+		if (ev->status && conn->state == BT_CONNECTED) {
+			hci_acl_disconn(conn, 0x13);
+			hci_conn_put(conn);
+			goto unlock;
+		}
+
 		if (conn->state == BT_CONFIG) {
 			if (!ev->status)
 				conn->state = BT_CONNECTED;
@@ -2049,6 +2055,7 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
 			hci_encrypt_cfm(conn, ev->status, ev->encrypt);
 	}
 
+unlock:
 	hci_dev_unlock(hdev);
 }
 
@@ -2102,7 +2109,7 @@ static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff
 		goto unlock;
 	}
 
-	if (!ev->status) {
+	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
 		struct hci_cp_remote_name_req cp;
 		memset(&cp, 0, sizeof(cp));
 		bacpy(&cp.bdaddr, &conn->dst);
@@ -2871,7 +2878,7 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b
 	if (conn->state != BT_CONFIG)
 		goto unlock;
 
-	if (!ev->status) {
+	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
 		struct hci_cp_remote_name_req cp;
 		memset(&cp, 0, sizeof(cp));
 		bacpy(&cp.bdaddr, &conn->dst);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 94552b33d528..6f9c25b633a6 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4589,6 +4589,11 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 
 		if (!status && (chan->state == BT_CONNECTED ||
 						chan->state == BT_CONFIG)) {
+			struct sock *sk = chan->sk;
+
+			bt_sk(sk)->suspended = false;
+			sk->sk_state_change(sk);
+
 			l2cap_check_encryption(chan, encrypt);
 			l2cap_chan_unlock(chan);
 			continue;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 29122ed28ea9..04e7c172d49c 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -592,10 +592,14 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 			sk->sk_state = BT_CONFIG;
 			chan->state = BT_CONFIG;
 
-		/* or for ACL link, under defer_setup time */
-		} else if (sk->sk_state == BT_CONNECT2 &&
-					bt_sk(sk)->defer_setup) {
-			err = l2cap_chan_check_security(chan);
+		/* or for ACL link */
+		} else if ((sk->sk_state == BT_CONNECT2 &&
+			   bt_sk(sk)->defer_setup) ||
+			   sk->sk_state == BT_CONNECTED) {
+			if (!l2cap_chan_check_security(chan))
+				bt_sk(sk)->suspended = true;
+			else
+				sk->sk_state_change(sk);
 		} else {
 			err = -EINVAL;
 		}