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Commit 43e73e4e authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
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Bluetooth: Provide HCI command opcode information to driver 



The Bluetooth core already does processing of the HCI command header
and puts it together before sending it to the driver. It is not really
efficient for the driver to look at the HCI command header again in
case it has to make certain decisions about certain commands. To make
this easier, just provide the opcode as part of the SKB control buffer
information. The extra information about the opcode is optional and
only provided for HCI commands.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 7cb9d20f

include/net/bluetooth/bluetooth.h

+1 −0
Original line number Diff line number Diff line
@@ -284,6 +284,7 @@ struct hci_req_ctrl { 
struct bt_skb_cb {

	__u8 pkt_type;

	__u8 incoming;

	__u16 opcode;

	__u16 expect;

	__u8 force_active;

	struct l2cap_chan *chan;

net/bluetooth/hci_core.c

+1 −0
Original line number Diff line number Diff line
@@ -4547,6 +4547,7 @@ static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, 
	BT_DBG("skb len %d", skb->len);



	bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;

	bt_cb(skb)->opcode = opcode;



	return skb;

}