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Bluetooth: Clean up current advertising instance tracking

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We can simplify a lot of code by making sure hdev->cur_adv_instance is
always up-to-date. This allows e.g. the removal of the
get_current_adv_instance() helper function and the special
HCI_ADV_CURRENT value. This patch also makes selecting instance 0x00
explicit in the various calls where advertising instances aren't
enabled, e.g. when HCI_ADVERTISING is set or we've just finished
enabling LE.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg
2015-11-30 11:21:45 +02:00
committed by Marcel Holtmann
parent d6b7e2cddb
commit cab054ab47
4 changed files with 32 additions and 66 deletions
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10
net/bluetooth/mgmt.c
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@@ -1626,8 +1626,8 @@ static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
struct hci_request req;
hci_req_init(&req, hdev);
__hci_req_update_adv_data(&req, HCI_ADV_CURRENT);
__hci_req_update_scan_rsp_data(&req, HCI_ADV_CURRENT);
__hci_req_update_adv_data(&req, 0x00);
__hci_req_update_scan_rsp_data(&req, 0x00);
hci_req_run(&req, NULL);
hci_update_background_scan(hdev);
}
@@ -3006,7 +3006,7 @@ static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
* no need to udpate the advertising data here.
*/
if (lmp_le_capable(hdev))
__hci_req_update_scan_rsp_data(&req, HCI_ADV_CURRENT);
__hci_req_update_scan_rsp_data(&req, hdev->cur_adv_instance);
err = hci_req_run(&req, set_name_complete);
if (err < 0)
@@ -3799,6 +3799,7 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
bool changed;
if (cp->val) {
hdev->cur_adv_instance = 0x00;
changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
if (cp->val == 0x02)
hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
@@ -3846,6 +3847,7 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
* We cannot use update_[adv|scan_rsp]_data() here as the
* HCI_ADVERTISING flag is not yet set.
*/
hdev->cur_adv_instance = 0x00;
__hci_req_update_adv_data(&req, 0x00);
__hci_req_update_scan_rsp_data(&req, 0x00);
__hci_req_enable_advertising(&req);
@@ -4195,7 +4197,7 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
/* Since only the advertising data flags will change, there
* is no need to update the scan response data.
*/
__hci_req_update_adv_data(&req, HCI_ADV_CURRENT);
__hci_req_update_adv_data(&req, hdev->cur_adv_instance);
err = hci_req_run(&req, set_bredr_complete);
if (err < 0)