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Bluetooth: Add dedicated pool for HCI_Num_Completed_Packets HCI event

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This event is a priority one, so it's not safe to have it use the RX
buffer pool which may be depleted due to non-priority events (e.g.
advertising events). Since the event is consumed synchronously it's
safe to have a single-buffer pool for it. Also introduce a new
bt_buf_get_evt() API for HCI drivers to simplify the driver-side code,
this effectively also deprecates bt_buf_get_cmd_complete() which now
has no in-tree HCI driver users anymore.

Fixes #16864

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2019-06-17 15:54:45 +03:00 • committed by Johan Hedberg
commit fc2fcd10cf
12 changed files with 75 additions and 41 deletions
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6
drivers/bluetooth/hci/ipm_stm32wb.c
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@ -114,12 +114,8 @@ void TM_EvtReceivedCb(TL_EvtPacket_t *hcievt)
BT_ERR("Unknown evtcode type 0x%02x",
hcievt->evtserial.evt.evtcode);
goto out;
case BT_HCI_EVT_CMD_COMPLETE:
case BT_HCI_EVT_CMD_STATUS:
buf = bt_buf_get_cmd_complete(K_FOREVER);
break;
default:
buf = bt_buf_get_rx(BT_BUF_EVT, K_FOREVER);
buf = bt_buf_get_evt(evtserial.evt.evtcode, K_FOREVER);
break;
}
net_buf_add_mem(buf, &hcievt->evtserial.evt,