From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.216.248.212 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793869082; b=dd0p45m9QuL4q+/S3HpGa7XLJDvZkNOPkzzk2nrDbZ0i6imeWrBg7v40s07fOgQblykJ uLK2l222as1hNiIJlkWQdpjCe/AgrOnDQhJfua7Q7xGWL024Ac6sRyUmmMfE9y0GdsBkS Nv9Us0kyUL6NvDWQ6DKCQoqA3kOqjYw5DB6eU131tm6xU5NslL/aKhZWI9R59oOTp9zJg HLEnLpQ7zwKi+QNeRXJ+weBFF/ex8jVoa01lO6OPYB2yBBJ9UVEW9ZiN4LEY80sRQMQim kS1JDYRUxr4dozA7eqmMMfbT5Tc6fOem/iTklGa1xx6j6Rd1437NbZWdfknDr/1LgHA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793869082; h=DMARC-Filter:From:DKIM-Signature:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=6UOkymQhnfOrj2yAZv17rmW+xuQ+0zZXE06/CQLTSww=; b=0GfboqYPWwkas3/bdH3K0iuW+eb1CdZHytQ+81QSy7OzyC7boJ3qOdssqnrx6ElA5O3R NRRBFwAO5XQPQtbr26DZRO3CM+JqmS1lEotut8Ow3j4YjDF41eeknm/G689FQ3PxcTAqw mvVd7W/X7OVs4kzFgEHIW6hmyJHf4HX8AlEXPgIkAqEfs7AmQKSvsg8641nbDXY7DRS42 vuMPlmrU61vP+c27BIsa0iSdS+F6Cdpf8dc2rCaPSfgxDiOEtXAItXqKtd2eYS8/ZLyE+ HIHRGXop3KdrHou4UiXyp3bf/+DGXcAv/pq4wuhKHLLn2ygFA4dSncpDPm5FHBotIUg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=deq.rocks; spf=none smtp.mailfrom=deq.rocks; dkim=pass header.d=deq.rocks header.i=@deq.rocks header.a=rsa-sha256 header.s=securedbylima-20251205 header.b=cbGVGSKj; arc=none smtp.remote-ip=91.216.248.212 Received: from bulk0.mail-out.lima-city.de (bulk0.mail-out.lima-city.de [91.216.248.212]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7527A606A334; Thu, 5 Nov 2026 08:58:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 7527A606A334 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=deq.rocks Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=deq.rocks Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=deq.rocks header.i=@deq.rocks header.a=rsa-sha256 header.s=securedbylima-20251205 header.b=cbGVGSKj From: Andre Eikmeyer DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=deq.rocks; s=securedbylima-20251205; t=1793869079; bh=AlntEjGZGdpJydOR7xazAe3mieEGTxbT1NLXNTsDkjY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cbGVGSKjSlLWifvxO0qrhgHm2nn1svRBdsFavoAUjaVD7q5UqCRG4z/V75mVI/6a4 jlyqAKYQAY+rZqxFunTLXcylQ3O0rSxOPXT6UrU4GdqoMtzEQNLD+maF5j1tawaB/U fS6LtVJ8jrUDq6UfE6hqnIKuRPY9kmDk1Pm4xZw+wb3yNuNAgJNurn0YDarmiihN8U 4Lsz9/dzZp7SLvZs0xDfqueoCDOvVx8H2ZiJ1niRiqSG3ahJ2aTLMDCreGu3OJVC0F 1pv1SpPCWUIOiI6gmb4okeTXIRiuY33yZetuU2NZ4C1sPufQBGlC83lsrtKglvf0AK 15Fn9UO9skexQ== To: marcel@holtmann.org, luiz.dentz@gmail.com Cc: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, sven@kernel.org, j@jannau.net, neal@gompa.dev, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Andre Eikmeyer , Yossef Osman , Aditya Garg Subject: [PATCH v2 2/2] Bluetooth: set the strict duplicate filter quirk on Apple Broadcom controllers Date: Thu, 5 Nov 2026 09:57:50 +0100 Message-ID: <20261105085750.120392-3-dev@deq.rocks> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261105085750.120392-1-dev@deq.rocks> References: <20261105085750.120392-1-dev@deq.rocks> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit btbcm_finalize() sets HCI_QUIRK_STRICT_DUPLICATE_FILTER, but bcm_setup() returns before it when no patch file was loaded. The MacBookPro15,1 has none for its BCM4364B0 ("BCM: firmware Patch file not found"). hci_bcm4377 does not use btbcm_finalize() and never sets the quirk. A service discovery then scans with "Filter duplicates: Enabled", and the controller reports an address once per discovery cycle of about 10.7 s. A Mac that changed its advertisement data on the same address was reported 6 s after the change, at the next cycle. Set the quirk in hci_bcm on that path and in hci_bcm4377. Tested-by: Yossef Osman Tested-by: Aditya Garg Signed-off-by: Andre Eikmeyer --- drivers/bluetooth/hci_bcm.c | 5 ++++- drivers/bluetooth/hci_bcm4377.c | 5 +++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index cf4f1455cf9..9eeeaf5d6b0 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -596,8 +596,11 @@ static int bcm_setup(struct hci_uart *hu) if (err) return err; - if (!fw_load_done) + if (!fw_load_done) { + /* btbcm_finalize() sets this after loading a patch file */ + hci_set_quirk(hu->hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); return 0; + } /* Init speed if any */ if (bcm->dev && bcm->dev->init_speed) diff --git a/drivers/bluetooth/hci_bcm4377.c b/drivers/bluetooth/hci_bcm4377.c index 30fcadfae3f..66cdd896c95 100644 --- a/drivers/bluetooth/hci_bcm4377.c +++ b/drivers/bluetooth/hci_bcm4377.c @@ -2391,6 +2391,11 @@ static int bcm4377_probe(struct pci_dev *pdev, const struct pci_device_id *id) hdev->set_bdaddr = bcm4377_hci_set_bdaddr; hdev->setup = bcm4377_hci_setup; + /* The controller reports an address once per scan with duplicate + * filtering, also after its advertisement data changed. + */ + hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER); + if (bcm4377->hw->broken_mws_transport_config) hci_set_quirk(hdev, HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG); if (bcm4377->hw->broken_ext_scan)