From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 AC965416878; Fri, 4 Sep 2026 06:12:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788502352; cv=none; b=kCKFamVMGr/iI8ywuHWAUlLNN+cFX9bZTLxf0k85ipn9vVw6tq6bN8jkgu54A+EVDdMESeThDg/4EspUId4sxR4k62+FKWkXq+3s+TfCWujdknh04p/OVed3UYqTk/HVd8xA65RL0MsVAIzWsvt/BQqHIZJxas87u/ylSAjyLw4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788502352; c=relaxed/simple; bh=t7K0hvGXslwkaqVFWdMl/wv9psLw9oIvIvxBmRtZb2s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=j6j3ZzhF5gGZT+jAZQL80Mx60/C3Dg6wSMcWVSJa/tnX9e6TW2tIHe7eBK2gKMLi02oBbo55MreOJwYbB5va2n3FlJNJein29C7LKNUWd8FWBJHXZP/b6GHKX3TR4+pgpMaf+bndVVDAHvE/EvvAbXLwsBbPXqe5a4XRrWPYkIA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=GViYJIC2; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="GViYJIC2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6A8F1F00A3D; Fri, 4 Sep 2026 06:12:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788502351; bh=hwceJebJ46nxOVnMXJ5Qi1GlGQGc/pAvJMdpDbtXVnw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GViYJIC2RGSU75rGKfVkJ88A5AoIZudzD7C+psPYmcycwJkiZgatm/RYZJSt2o1wy DHbATtCXMgnGo5tthaLv9rm+ec+YhTyMPHNp1W/a+zQXa/FLeAtcdll9CFMdDfxzuH l975epl3BsmTJtGm3gIlJp11yxxcN9WFgz6wA4NI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Lorenzo Stoakes (ARM)" , Sven Peter , Luiz Augusto von Dentz Subject: [PATCH 6.12 175/403] Bluetooth: hci_bcm4377: Ignore reserved PHY in ext adv reports on BCM4378 Date: Fri, 4 Sep 2026 06:59:38 +0200 Message-ID: <20260904045738.838783715@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260904045734.806166532@linuxfoundation.org> References: <20260904045734.806166532@linuxfoundation.org> User-Agent: quilt/0.69 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-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Stoakes (ARM) commit aec6a8d80e3da0ab5c9303a0281fd06d077f8716 upstream. Commit ed2a2ef16a6b ("Bluetooth: Add quirk to ignore reserved PHY bits in LE Extended Adv Report") added a quirk to handle creative use of the reserved bits in the PHY fields for 4388 controllers in Apple silicon. I observed the same issue with the BCM4378 Bluetooth controller (14e4:5f69, rev 05) on an Apple MacBook Pro (13-inch, M2, 2022): > HCI Event: LE Meta Event (0x3e) plen 51 LE Extended Advertising Report (0x0d) Num reports: 1 Entry 0 Event type: 0x2513 Props: 0x0013 Connectable Scannable Use legacy advertising PDUs Data status: Complete Reserved (0x2500) Legacy PDU Type: Reserved (0x2513) Address type: Random (0x01) Address: EA:C1:82:F0:24:C6 (Static) Primary PHY: Reserved Secondary PHY: No packets SID: no ADI field (0xff) TX power: 127 dBm RSSI: -57 dBm (0xc7) Periodic advertising interval: 0.00 msec (0x0000) Direct address type: Public (0x00) Direct address: 00:00:00:00:00:00 (OUI 00-00-00) Data length: 25 This results in the firmware rejecting connection attempts with "Unsupported Feature or Parameter Value" (0x11). Fix the issue by using the same quirk for BCM4378 devices too. I tested this locally and confirmed that the issue is resolved. This was observed when attempting to connect a Kinesis Advantage 360 keyboard to the MacBook. Assisted-by: Claude:claude-fable-5 Fixes: 2e7ed5f5e69b ("Bluetooth: hci_sync: Use advertised PHYs on hci_le_ext_create_conn_sync") Cc: stable@vger.kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Reviewed-by: Sven Peter Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Greg Kroah-Hartman --- drivers/bluetooth/hci_bcm4377.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/bluetooth/hci_bcm4377.c +++ b/drivers/bluetooth/hci_bcm4377.c @@ -2486,6 +2486,7 @@ static const struct bcm4377_hw bcm4377_h .has_bar0_core2_window2 = true, .broken_mws_transport_config = true, .broken_le_coded = true, + .broken_le_ext_adv_report_phy = true, .send_calibration = bcm4378_send_calibration, .send_ptb = bcm4378_send_ptb, },