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=1793805378; b=iIC0ao6Je2pV9VEWyvWar/143uQeMxzQltE93dEQgWTGVUUaTxGWZPXyMTWcDu4tHxv/ gDIq/vaAUYz88GJWwssf/VaEgHmZVFS2NT1xWZLcIKoC4rO5YRsWizh1nY2GvAqalVCuD UjZqRd7wqx7Ow+oBLLeQA3K+f+vFHS2DoPeNr7LKE5WutTAH3arxMU+ET2g3+ZuCcilCq VVRYxwx3TGUGg1icKVRmnI+10DPTa2O2Stn+RTKeWQMhfflfRCGvv3G+aWSMh2P/GUixr j167kRYq7bI0VTMAopDLNwDp8I8BoV67UTdq78/HbIwKBhy1F1CQ/RBXCHIRyXI6qWg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793805378; h=DMARC-Filter:From:DKIM-Signature:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=OqDo8ZjWnldpjQLZtviwEAKFTnnvBemRbk1Ky+Mok18=; b=Muqj2C1p7AtPVe/O7KQd7EB/K1S45ia7J9Q5fYjdCiZzv6yDwikG5zLUFS5DkEN0qP9t C8svw4EURz1DT/NMG1xSe66uBcBtlfAJ9oS9Y5Z9FPfVm42nBSOcjMJs6xJRr6CR03Zgf 8f+XwSHZp3GbrYPZeFq/zRkX6a2nmgG46oiu+6Akr/3tr8wWEK8d5Jh3hmfyRd6gcJCqY 9Y902tITHVAZjRajgg8AZsSxN8HP97nUGxNMOiqZxuTgoW0kKiYKEqhk/fDEVAk1dPFQE sbah1Wswm0vIu0ZA12HkRWRJKtxZPdVXpBhUKqxzlAB5kAfgWBgYNjGR/CcZkuxO1dA== 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=ebBIYhlM; 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 0DAA3606D833; Wed, 4 Nov 2026 15:16:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 0DAA3606D833 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=ebBIYhlM From: Andre Eikmeyer DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=deq.rocks; s=securedbylima-20251205; t=1793805376; bh=JfQzV030AVQ0gGFAqN90Ocdak/ZrdoDwpXmDpK8ZLe0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ebBIYhlMVX8RH7xQ6B++3qwd5Lv5lPTWN8GoEJOK4SqgVgb3H6FK2eOH04V+qeMob eJMG7K7RHrV9qvaDSkVwHEwnwJxVN0DYMWnbsRarCzoqyDI9OWT3ny3VpixW3l+6Zq kOm0dztD0n1UO+vu2xXOMFfRCSQmoh/aiDRW5iX3ffbCZFIIeTux7f/SOFsTr9kvxG 5/Z1Kvr+sJzPgzyZCaiQq+KMKcvCYHMmXY5QNv++Qcu+6XKr3e3J8sDgVyDYxxR8+c IDgyOL/JXne/SsqdOgSeUC5vc/Hz4br51u8XxVVCTpj9Lh54ENj2bm1UShojJ6rbpS exvvHQ2iDJI3w== 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, 66ton99@gmail.com, josemiguelo.ochoa@gmail.com, aditya.garg@linux.dev, Andre Eikmeyer , Yossef Osman Subject: [PATCH 4/4] Bluetooth: set the strict duplicate filter quirk on Apple Broadcom controllers Date: Wed, 4 Nov 2026 16:16:01 +0100 Message-ID: <20261104151601.70493-5-dev@deq.rocks> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261104151601.70493-1-dev@deq.rocks> References: <20261104151601.70493-1-dev@deq.rocks> X-Mailing-List: linux-bluetooth@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 1ae9619ee1e..ee077c8502d 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -597,8 +597,11 @@ 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 8d99a7a8f76..7105372898d 100644 --- a/drivers/bluetooth/hci_bcm4377.c +++ b/drivers/bluetooth/hci_bcm4377.c @@ -2392,6 +2392,11 @@ 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)