From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7702E12C47A; Tue, 30 Apr 2024 10:49:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714474176; cv=none; b=peqloZ1wTRQc9o64z8dDkdYrR13gHOUQf9BNvnvHoKYZONL6msipsQHupSP31OojiFGdAcVwS+ZX5Eg8jlNKbFzjX/wODlv/UGIEJWEmOUmVA1TSd07FU+YQkTm70hKNK3pW1pVOBxTgW7Yo0fET40pIopmtf2cWoBwk27H95Fg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714474176; c=relaxed/simple; bh=ZinmeS8O3dPwej8dhaNARbUpzuyOGlQpsrczL6oRks0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TYsXuUkl7dOF8GC1lYEvqvLcMr4R9TEP7G8w0eOWhnQkDLsMRChLxelouRM1+y0cctMCJ3hPZEs0nRMrLtOfaY9TQlKn936awJkG1hneuolhPk7EmoUkoBKRkd1APQPXAE6J8Yr5wvVezcHwW0EKXd7OiYTlbFXX6/im5w5r8Ok= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YQZF8rOd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YQZF8rOd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01792C2BBFC; Tue, 30 Apr 2024 10:49:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1714474176; bh=ZinmeS8O3dPwej8dhaNARbUpzuyOGlQpsrczL6oRks0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YQZF8rOd2St7H/KyTD2FDhcVO/7UzRO38A0i4oU9rsfaZJaaHiuz4x3/ZTX7JySER hwGFvid6tmzjxDFMh7cgDsUcAEv7RUzK9JHjuVsygKgTcrI5Fz5S3xIdvpWcPyFc2H 01gPaZ9ywDhOW0HX44YnrrSj9drhzRzvLYlVob/g= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Jonas=20Dre=C3=9Fler?= , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 6.8 079/228] Bluetooth: Remove pending ACL connection attempts Date: Tue, 30 Apr 2024 12:37:37 +0200 Message-ID: <20240430103106.084233795@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240430103103.806426847@linuxfoundation.org> References: <20240430103103.806426847@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonas Dreßler [ Upstream commit 4aa42119d971603dc9e4d8cf4f53d5fcf082ea7d ] With the last commit we moved to using the hci_sync queue for "Create Connection" requests, removing the need for retrying the paging after finished/failed "Create Connection" requests and after the end of inquiries. hci_conn_check_pending() was used to trigger this retry, we can remove it now. Note that we can also remove the special handling for COMMAND_DISALLOWED errors in the completion handler of "Create Connection", because "Create Connection" requests are now always serialized. This is somewhat reverting commit 4c67bc74f016 ("[Bluetooth] Support concurrent connect requests"). With this, the BT_CONNECT2 state of ACL hci_conn objects should now be back to meaning only one thing: That we received a "Connection Request" from another device (see hci_conn_request_evt), but the response to that is going to be deferred. Signed-off-by: Jonas Dreßler Signed-off-by: Luiz Augusto von Dentz Stable-dep-of: 2e7ed5f5e69b ("Bluetooth: hci_sync: Use advertised PHYs on hci_le_ext_create_conn_sync") Signed-off-by: Sasha Levin --- include/net/bluetooth/hci_core.h | 1 - net/bluetooth/hci_conn.c | 16 ---------------- net/bluetooth/hci_event.c | 21 ++++----------------- 3 files changed, 4 insertions(+), 34 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index d1228857b1d0f..ddbf287ee64fb 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1481,7 +1481,6 @@ struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, bdaddr_t *dst, u8 role); void hci_conn_del(struct hci_conn *conn); void hci_conn_hash_flush(struct hci_dev *hdev); -void hci_conn_check_pending(struct hci_dev *hdev); struct hci_chan *hci_chan_create(struct hci_conn *conn); void hci_chan_del(struct hci_chan *chan); diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index d21e39ae67658..13481f08e47ee 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -2592,22 +2592,6 @@ void hci_conn_hash_flush(struct hci_dev *hdev) } } -/* Check pending connect attempts */ -void hci_conn_check_pending(struct hci_dev *hdev) -{ - struct hci_conn *conn; - - BT_DBG("hdev %s", hdev->name); - - hci_dev_lock(hdev); - - conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2); - if (conn) - hci_acl_create_connection_sync(hdev, conn); - - hci_dev_unlock(hdev); -} - static u32 get_link_mode(struct hci_conn *conn) { u32 link_mode = 0; diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index a59b5b4711a46..f5d77c8089d81 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -118,8 +118,6 @@ static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data, hci_discovery_set_state(hdev, DISCOVERY_STOPPED); hci_dev_unlock(hdev); - hci_conn_check_pending(hdev); - return rp->status; } @@ -150,8 +148,6 @@ static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data, hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); - hci_conn_check_pending(hdev); - return rp->status; } @@ -2312,10 +2308,8 @@ static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status) { bt_dev_dbg(hdev, "status 0x%2.2x", status); - if (status) { - hci_conn_check_pending(hdev); + if (status) return; - } if (hci_sent_cmd_data(hdev, HCI_OP_INQUIRY)) set_bit(HCI_INQUIRY, &hdev->flags); @@ -2340,12 +2334,9 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) if (status) { if (conn && conn->state == BT_CONNECT) { - if (status != HCI_ERROR_COMMAND_DISALLOWED || conn->attempt > 2) { - conn->state = BT_CLOSED; - hci_connect_cfm(conn, status); - hci_conn_del(conn); - } else - conn->state = BT_CONNECT2; + conn->state = BT_CLOSED; + hci_connect_cfm(conn, status); + hci_conn_del(conn); } } else { if (!conn) { @@ -3035,8 +3026,6 @@ static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data, bt_dev_dbg(hdev, "status 0x%2.2x", ev->status); - hci_conn_check_pending(hdev); - if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags)) return; @@ -3283,8 +3272,6 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data, unlock: hci_dev_unlock(hdev); - - hci_conn_check_pending(hdev); } static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr) -- 2.43.0