[RFC][Precise][PATCH 1/2] UBUNTU: SAUCE: Bluetooth: Add a load_firmware callback to struct hci_dev

[Jesse Sung]

From: Wen-chien Jesse Sung <jesse.sung at canonical.com>

BugLink: https://launchpad.net/bugs/1065400

load_firmware will be called at the end of hci_dev_open() if it
is defined. How, when, and the mutual exclusion for firmware loading
is inplemented in device driver.

Signed-off-by: Wen-chien Jesse Sung <jesse.sung at canonical.com>
---
 include/net/bluetooth/hci_core.h |    1 +
 net/bluetooth/hci_core.c         |    2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3779ea3..8e86465 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -233,6 +233,7 @@ struct hci_dev {
 	void (*destruct)(struct hci_dev *hdev);
 	void (*notify)(struct hci_dev *hdev, unsigned int evt);
 	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
+	void (*load_firmware)(struct hci_dev *hdev);
 };
 
 struct hci_conn {
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 857dc88..ac7b0ee 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -582,6 +582,8 @@ int hci_dev_open(__u16 dev)
 done:
 	hci_req_unlock(hdev);
 	hci_dev_put(hdev);
+	if (!ret && hdev->load_firmware)
+		hdev->load_firmware(hdev);
 	return ret;
 }
 
-- 
1.7.9.5