From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) (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 2CF473BFE3F; Thu, 19 Mar 2026 10:58:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.176.79.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773917927; cv=none; b=O25qrPVd+SD/jsF0514T0mv216K5uWfeOKR3cyxJkt8GWVJhW2Mim0Z9Z0l6U9n27tpOlgwk2Eoi62bJX1Igt1HvrmdtfqUVf34/QktTNNJsMS/65PxMKXiBCYL8NlweCzesJBHTRDG6zsALCOLUrkH2iCIoTGMOVTblblazL5k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773917927; c=relaxed/simple; bh=AgCBXHZnTJeW1jAh7B9Ei661agzhi2bu6A1p7nceQYM=; h=Date:From:To:CC:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=W+KonpLASqLy2VMjbNX4CgQFkFekGQhTCMMH499N84RPIPdzdq9uIJw2durS4qitlMsXEfJf++tlWRzrbFYX8K4PAzDe2CgOfM8JFyes5ytjPP4cJfPGwfQ2mNGLmLufXhTLXjNr6ePNEUsDxAuM23mp61RZ+SsmxGMOq8GEk+U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=185.176.79.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.18.224.83]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4fc2hx2gqtzJ46cg; Thu, 19 Mar 2026 18:57:37 +0800 (CST) Received: from dubpeml500005.china.huawei.com (unknown [7.214.145.207]) by mail.maildlp.com (Postfix) with ESMTPS id 94D4A40569; Thu, 19 Mar 2026 18:58:36 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml500005.china.huawei.com (7.214.145.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 19 Mar 2026 10:58:34 +0000 Date: Thu, 19 Mar 2026 10:58:32 +0000 From: Jonathan Cameron To: Chengwen Feng CC: Bjorn Helgaas , Catalin Marinas , Will Deacon , "Rafael J . Wysocki" , Jonathan Corbet , Shuah Khan , Huacai Chen , "WANG Xuerui" , Paul Walmsley , "Palmer Dabbelt" , Albert Ou , "Alexandre Ghiti" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , , "H . Peter Anvin" , Juergen Gross , Boris Ostrovsky , Len Brown , Sunil V L , Mark Rutland , Kees Cook , Yanteng Si , Sean Christopherson , Kai Huang , Tom Lendacky , Thomas Huth , Thorsten Blum , Kevin Loughlin , Zheyun Shen , Peter Zijlstra , Pawan Gupta , Xin Li , "Ahmed S . Darwish" , Sohil Mehta , Ilkka Koskinen , Robin Murphy , James Clark , Besar Wicaksono , Ma Ke , "Wei Huang" , Andy Gospodarek , Somnath Kotur , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v9 0/7] ACPI: Unify CPU UID interface and fix ARM64 TPH steer-tag issue Message-ID: <20260319105832.00002218@huawei.com> In-Reply-To: <20260319065735.45954-1-fengchengwen@huawei.com> References: <20260319065735.45954-1-fengchengwen@huawei.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: lhrpeml500009.china.huawei.com (7.191.174.84) To dubpeml500005.china.huawei.com (7.214.145.207) On Thu, 19 Mar 2026 14:57:28 +0800 Chengwen Feng wrote: > This patchset unifies ACPI Processor UID retrieval across > arm64/loongarch/riscv/x86 via acpi_get_cpu_uid() (with input validation) > and fixes ARM64 CPU steer-tag retrieval failure in PCI/TPH: > > 1-4: Add acpi_get_cpu_uid() for arm64/loongarch/riscv/x86 (update > respective users) > 5: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h > 6: Clean up ACPI/PPTT and remove unused get_acpi_id_for_cpu() > 7: Fix ARM64 platform CPU steer-tag retrieval failure > > The interface refactor ensures consistent CPU UID retrieval across > architectures (no functional changes for valid inputs) and provides the > unified interface required for the ARM64 TPH fix. Given the structure of the series has slowly evolved since I gave tags, I took another look. All looks good to me. Nice work. Jonathan