Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/ker…

…nel/git/bluetooth/bluetooth

Johan Hedberg says:

====================
pull request: bluetooth 2016-10-08

Here are a couple of Bluetooth fixes for the 4.9 kernel:

 - Firmware download fix for Atheros controllers
 - Fixes to the content of LE scan response
 - New USB ID for a Marvell chipset

Please let me know if there are any issues pulling. Thanks.
====================

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

drivers/bluetooth/btusb.c

@@ -314,6 +314,7 @@ static const struct usb_device_id blacklist_table[] = {
 	/* Marvell Bluetooth devices */
 	{ USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 	{ USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
+	{ USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 
 	/* Intel Bluetooth devices */
 	{ USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
@@ -1042,6 +1043,10 @@ static int btusb_open(struct hci_dev *hdev)
 
 	BT_DBG("%s", hdev->name);
 
+	err = usb_autopm_get_interface(data->intf);
+	if (err < 0)
+		return err;
+
 	/* Patching USB firmware files prior to starting any URBs of HCI path
 	 * It is more safe to use USB bulk channel for downloading USB patch
 	 */
@@ -1051,10 +1056,6 @@ static int btusb_open(struct hci_dev *hdev)
 			return err;
 	}
 
-	err = usb_autopm_get_interface(data->intf);
-	if (err < 0)
-		return err;
-
 	data->intf->needs_remote_wakeup = 1;
 
 	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))

net/bluetooth/hci_request.c

@@ -21,8 +21,6 @@
    SOFTWARE IS DISCLAIMED.
 */
 
-#include <asm/unaligned.h>
-
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
@@ -973,33 +971,58 @@ void __hci_req_enable_advertising(struct hci_request *req)
 
 static u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
 {
-	size_t name_len;
+	size_t complete_len;
+	size_t short_len;
 	int max_len;
 
 	max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
-	name_len = strlen(hdev->dev_name);
-	if (name_len > 0 && max_len > 0) {
-
-		if (name_len > max_len) {
-			name_len = max_len;
-			ptr[1] = EIR_NAME_SHORT;
-		} else
-			ptr[1] = EIR_NAME_COMPLETE;
-
-		ptr[0] = name_len + 1;
+	complete_len = strlen(hdev->dev_name);
+	short_len = strlen(hdev->short_name);
+
+	/* no space left for name */
+	if (max_len < 1)
+		return ad_len;
+
+	/* no name set */
+	if (!complete_len)
+		return ad_len;
+
+	/* complete name fits and is eq to max short name len or smaller */
+	if (complete_len <= max_len &&
+	    complete_len <= HCI_MAX_SHORT_NAME_LENGTH) {
+		return eir_append_data(ptr, ad_len, EIR_NAME_COMPLETE,
+				       hdev->dev_name, complete_len);
+	}
 
-		memcpy(ptr + 2, hdev->dev_name, name_len);
+	/* short name set and fits */
+	if (short_len && short_len <= max_len) {
+		return eir_append_data(ptr, ad_len, EIR_NAME_SHORT,
+				       hdev->short_name, short_len);
+	}
 
-		ad_len += (name_len + 2);
-		ptr += (name_len + 2);
+	/* no short name set so shorten complete name */
+	if (!short_len) {
+		return eir_append_data(ptr, ad_len, EIR_NAME_SHORT,
+				       hdev->dev_name, max_len);
 	}
 
 	return ad_len;
 }
 
+static u8 append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
+{
+	return eir_append_le16(ptr, ad_len, EIR_APPEARANCE, hdev->appearance);
+}
+
 static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
 {
-	return append_local_name(hdev, ptr, 0);
+	u8 scan_rsp_len = 0;
+
+	if (hdev->appearance) {
+		scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len);
+	}
+
+	return append_local_name(hdev, ptr, scan_rsp_len);
 }
 
 static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
@@ -1016,18 +1039,13 @@ static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
 	instance_flags = adv_instance->flags;
 
 	if ((instance_flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance) {
-		ptr[0] = 3;
-		ptr[1] = EIR_APPEARANCE;
-		put_unaligned_le16(hdev->appearance, ptr + 2);
-		scan_rsp_len += 4;
-		ptr += 4;
+		scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len);
 	}
 
-	memcpy(ptr, adv_instance->scan_rsp_data,
+	memcpy(&ptr[scan_rsp_len], adv_instance->scan_rsp_data,
 	       adv_instance->scan_rsp_len);
 
 	scan_rsp_len += adv_instance->scan_rsp_len;
-	ptr += adv_instance->scan_rsp_len;
 
 	if (instance_flags & MGMT_ADV_FLAG_LOCAL_NAME)
 		scan_rsp_len = append_local_name(hdev, ptr, scan_rsp_len);

net/bluetooth/hci_request.h

@@ -20,6 +20,8 @@
    SOFTWARE IS DISCLAIMED.
 */
 
+#include <asm/unaligned.h>
+
 #define hci_req_sync_lock(hdev)   mutex_lock(&hdev->req_lock)
 #define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
 
@@ -103,3 +105,24 @@ static inline void hci_update_background_scan(struct hci_dev *hdev)
 
 void hci_request_setup(struct hci_dev *hdev);
 void hci_request_cancel_all(struct hci_dev *hdev);
+
+static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
+				  u8 *data, u8 data_len)
+{
+	eir[eir_len++] = sizeof(type) + data_len;
+	eir[eir_len++] = type;
+	memcpy(&eir[eir_len], data, data_len);
+	eir_len += data_len;
+
+	return eir_len;
+}
+
+static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
+{
+	eir[eir_len++] = sizeof(type) + sizeof(data);
+	eir[eir_len++] = type;
+	put_unaligned_le16(data, &eir[eir_len]);
+	eir_len += sizeof(data);
+
+	return eir_len;
+}

net/bluetooth/mgmt.c

@@ -867,27 +867,6 @@ static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
 				 sizeof(rp));
 }
 
-static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
-				  u8 data_len)
-{
-	eir[eir_len++] = sizeof(type) + data_len;
-	eir[eir_len++] = type;
-	memcpy(&eir[eir_len], data, data_len);
-	eir_len += data_len;
-
-	return eir_len;
-}
-
-static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
-{
-	eir[eir_len++] = sizeof(type) + sizeof(data);
-	eir[eir_len++] = type;
-	put_unaligned_le16(data, &eir[eir_len]);
-	eir_len += sizeof(data);
-
-	return eir_len;
-}
-
 static u16 append_eir_data_to_buf(struct hci_dev *hdev, u8 *eir)
 {
 	u16 eir_len = 0;