From patchwork Tue Jan 9 17:49:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 761143 Received: from mail-oo1-f41.google.com (mail-oo1-f41.google.com [209.85.161.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A6C33BB24 for ; Tue, 9 Jan 2024 17:49:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YLALYHwB" Received: by mail-oo1-f41.google.com with SMTP id 006d021491bc7-59502aa878aso1769160eaf.1 for ; Tue, 09 Jan 2024 09:49:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1704822578; x=1705427378; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=cyRlMyk1oGQnCsO+7EPfkXmXJnStecgFHMtT45h68x4=; b=YLALYHwBo48cuuW+gjpGNwZ4Tu5WshuG6RDXpNFdtY7e0/GmGup8Rku12ZfxgzyS26 D7PET18Jo/33S/WUKv+TTdA6RqRhYw6pwxCjROVOmXHAkYxLvAVXqy5IYKmNjQqAHjAk ZGmw+4CV7zG50NDvQNVC+VsB5Dj4UalsohtwfaoocciJCe0kfJIdjUmpFMgQuEHZ1CKx TPXknBz1P8hakZ6lKeqAXQpD7WyxaWvVhtT2WQNJwErJ2kl2wZPplV53+hgZERXlTO/3 ++ebDYYulA5lH5ADYiw3UpGluVsVed2IuBRcR9BbsBup+00TFXBqHrvEZRmLwnX4y0mC xNnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704822578; x=1705427378; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cyRlMyk1oGQnCsO+7EPfkXmXJnStecgFHMtT45h68x4=; b=oWHL3s131f3G8Ry+oVmDybojyU8lZ/jn2ytTYs8DnuLkYDsjWGIH6RdPDrb4AQf77y X340hnanLDPPRbqaMzLsmFK3hLyzfpuGo2g52f7ZSXtd3XzOWlFQc7J9YbJNs2uh2LDQ H7vpQZzjuz0vymqpSQpGtmmskblVIuJ1TtH5EFCJ9ujjeMFYg/F/KhjYaWOdwzyVS6QN YrWdS4N+2+efF7sEkUNpyPTaORyMCftLD2MgdgS0ObziyGZrEZaor2UAwtliQuCqsZ/I u+40rAFw14fP6bVyExDVGH0uzKkLh4RLkBO0RVhCVOGRA9TmVrrB7RWwyKF5+idV/zE0 oCCw== X-Gm-Message-State: AOJu0YzHx8IbM0Jl8v5EAZu1e0BkZNc0AOQ9nEA/zMkPF673YOr0Ghvx oZyD6vjidJd32pwZWWNBuiqBmiyfDmw= X-Google-Smtp-Source: AGHT+IEd+jtyxMJiIEo1d7tdYQuw6scN23N2N+6dbkkiDwGwJpzHRTtpYDihdRpUSHxrolUnU2ruaA== X-Received: by 2002:a05:6820:1627:b0:58d:974b:5056 with SMTP id bb39-20020a056820162700b0058d974b5056mr3923465oob.1.1704822577725; Tue, 09 Jan 2024 09:49:37 -0800 (PST) Received: from lvondent-mobl4.. (071-047-239-151.res.spectrum.com. [71.47.239.151]) by smtp.gmail.com with ESMTPSA id o184-20020a4a44c1000000b00595e66557e6sm476814ooa.6.2024.01.09.09.49.35 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jan 2024 09:49:35 -0800 (PST) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH v4 4/4] Bluetooth: Remove pending ACL connection attempts Date: Tue, 9 Jan 2024 12:49:28 -0500 Message-ID: <20240109174928.488595-4-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240109174928.488595-1-luiz.dentz@gmail.com> References: <20240109174928.488595-1-luiz.dentz@gmail.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jonas Dreßler 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 --- 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 8f8dd9173714..34aa9d0290fe 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1480,7 +1480,6 @@ 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 8d2c2751455e..451004e70ca4 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -2596,22 +2596,6 @@ 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_conn(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 6130c969f361..cd3fcd2aeb64 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -120,8 +120,6 @@ 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; } @@ -152,8 +150,6 @@ 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; } @@ -2314,10 +2310,8 @@ 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); @@ -2342,12 +2336,9 @@ 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) { @@ -3039,8 +3030,6 @@ 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; @@ -3262,8 +3251,6 @@ 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)