From patchwork Wed Aug 28 06:24:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 823833 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9EC171BC2F; Wed, 28 Aug 2024 06:25:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724826319; cv=none; b=UXhGF3WoeZ1AKwX1opLIzezqMjWxZsGlmnkm9p0+1ZDgjGPcO0H5m7CRW3Rj+9G4yrYzm6B1RlFv2p0eRbRkqtBirGJaWp37qb/OKgvzvrEL8s1MtLs9uMfHefux+HAa0avTroonZH9x29NIgfETeCnCW/LxVu9OrCqY1WY2b9Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724826319; c=relaxed/simple; bh=MEuMtdmGcnCXCBbyeF3r94mGLyQW7MccMHMw4Wd22i4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uTpj7RQbWXq4hg5gXBC6laiPxKEzCznW+4e9P4rpzuK1qKgzW0YoQDJg84hMtuAYhV7ktyPdl1l/C7v5WBsa3kBAARYYVIGTbjS4TcjBwm3O4HJMHj4EqyiAdXrQvBRF7izjwYd+iRlLVin6BIQkCumrDyCICJi/taDhUAgZ3nE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92576C5813C; Wed, 28 Aug 2024 06:25:16 +0000 (UTC) From: Huacai Chen To: "Rafael J . Wysocki" , Viresh Kumar , Huacai Chen Cc: loongarch@lists.linux.dev, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Xuerui Wang , Jiaxun Yang , Huacai Chen , Xi Ruoyao , Binbin Zhou Subject: [PATCH] cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request() Date: Wed, 28 Aug 2024 14:24:59 +0800 Message-ID: <20240828062459.1853837-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.43.5 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use raw_smp_processor_id() instead of plain smp_processor_id() in do_service_request(), otherwise we may get some errors with the driver enabled: BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/208 caller is loongson3_cpufreq_probe+0x5c/0x250 [loongson3_cpufreq] Reported-by: Xi Ruoyao Tested-by: Binbin Zhou Signed-off-by: Huacai Chen --- drivers/cpufreq/loongson3_cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/loongson3_cpufreq.c b/drivers/cpufreq/loongson3_cpufreq.c index 5f79b6de127c..6b5e6798d9a2 100644 --- a/drivers/cpufreq/loongson3_cpufreq.c +++ b/drivers/cpufreq/loongson3_cpufreq.c @@ -176,7 +176,7 @@ static DEFINE_PER_CPU(struct loongson3_freq_data *, freq_data); static inline int do_service_request(u32 id, u32 info, u32 cmd, u32 val, u32 extra) { int retries; - unsigned int cpu = smp_processor_id(); + unsigned int cpu = raw_smp_processor_id(); unsigned int package = cpu_data[cpu].package; union smc_message msg, last;