On Thu, Jan 13, 2022 at 11:53:50AM +0000, Aditya Garg wrote:
On 13-Jan-2022, at 4:17 PM, gregkh@linuxfoundation.org wrote:
The patch below does not apply to the 5.16-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From d2f8114f9574509580a8506d2ef72e7e43d1a5bd Mon Sep 17 00:00:00 2001 From: Aditya Garg gargaditya08@live.com Date: Thu, 2 Dec 2021 12:41:59 +0000 Subject: [PATCH] Bluetooth: add quirk disabling LE Read Transmit Power
From: Aditya Garg gargaditya08@live.com
Some devices have a bug causing them to not work if they query LE tx power on startup. Thus we add a quirk in order to not query it and default min/max tx power values to HCI_TX_POWER_INVALID.
Signed-off-by: Aditya Garg gargaditya08@live.com Reported-by: Orlando Chamberlain redecorating@protonmail.com Tested-by: Orlando Chamberlain redecorating@protonmail.com Link: https://lore.kernel.org/r/4970a940-211b-25d6-edab-21a815313954@protonmail.co... Fixes: 7c395ea521e6 ("Bluetooth: Query LE tx power on startup") Cc: stable@vger.kernel.org Signed-off-by: Marcel Holtmann marcel@holtmann.org
include/net/bluetooth/hci.h | 9 +++++++++ net/bluetooth/hci_core.c | 3 ++- 2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 63065bc01..383342efc 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -246,6 +246,15 @@ enum { * HCI after resume. */ HCI_QUIRK_NO_SUSPEND_NOTIFIER,
- /*
* When this quirk is set, LE tx power is not queried on startup* and the min/max tx power values default to HCI_TX_POWER_INVALID.** This quirk can be set before hci_register_dev is called or* during the hdev->setup vendor callback.*/- HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER,
}; /* HCI device flags */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8d33aa648..2cf77d76c 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -619,7 +619,8 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt) hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); }
if (hdev->commands[38] & 0x80) {
if ((hdev->commands[38] & 0x80) &&!test_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks)) { /* Read LE Min/Max Tx Power*/ hci_req_add(req, HCI_OP_LE_READ_TRANSMIT_POWER, 0, NULL);-- 2.25.1
Thank you for all of the backports, now queued up!
greg k-h