This is a note to let you know that I've just added the patch titled Bluetooth: Fix sending HCI commands after reset
to the 3.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bluetooth-fix-sending-hci-commands-after-reset.patch and it can be found in the queue-3.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@vger.kernel.org> know about it. >From dbccd791a3fbbdac12c33834b73beff3984988e9 Mon Sep 17 00:00:00 2001 From: Szymon Janc <szymon.j...@tieto.com> Date: Tue, 11 Dec 2012 08:51:19 +0100 Subject: Bluetooth: Fix sending HCI commands after reset From: Szymon Janc <szymon.j...@tieto.com> commit dbccd791a3fbbdac12c33834b73beff3984988e9 upstream. After sending reset command wait for its command complete event before sending next command. Some chips sends CC event for command received before reset if reset was send before chip replied with CC. This is also required by specification that host shall not send additional HCI commands before receiving CC for reset. < HCI Command: Reset (0x03|0x0003) plen 0 [hci0] 18.404612 > HCI Event: Command Complete (0x0e) plen 4 [hci0] > 18.405850 Write Extended Inquiry Response (0x03|0x0052) ncmd 1 Status: Success (0x00) < HCI Command: Read Local Supported Features (0x04|0x0003) plen 0 [hci0] 18.406079 > HCI Event: Command Complete (0x0e) plen 4 [hci0] > 18.407864 Reset (0x03|0x0003) ncmd 1 Status: Success (0x00) < HCI Command: Read Local Supported Features (0x04|0x0003) plen 0 [hci0] 18.408062 > HCI Event: Command Complete (0x0e) plen 12 [hci0] > 18.408835 Signed-off-by: Szymon Janc <szymon.j...@tieto.com> Acked-by: Johan Hedberg <johan.hedb...@intel.com> Signed-off-by: Gustavo Padovan <gustavo.pado...@collabora.co.uk> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- net/bluetooth/hci_event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2366,7 +2366,7 @@ static inline void hci_cmd_complete_evt( if (ev->opcode != HCI_OP_NOP) del_timer(&hdev->cmd_timer); - if (ev->ncmd) { + if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) { atomic_set(&hdev->cmd_cnt, 1); if (!skb_queue_empty(&hdev->cmd_q)) queue_work(hdev->workqueue, &hdev->cmd_work); Patches currently in stable-queue which might be from szymon.j...@tieto.com are queue-3.4/bluetooth-fix-sending-hci-commands-after-reset.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html