From nobody Thu Oct 2 07:43:59 2025 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 E90322D594D; Thu, 18 Sep 2025 21:10:54 +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=1758229856; cv=none; b=tTEpALf/ZU9esPDqjM5IpnzhjNA2tLT+QjhMQxQduQVkfS5C6/hn4i3zNrzMfmYWRkN749Qlmh4RSYop1ChbW/aT2tEJ3otDFWP6cqnB/78UxtD27wUYXpL6fO3nuTA72vTqGqj/U1RXJZ4bVSlTFgIOp5qZwTOucXKA6ExGyoc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758229856; c=relaxed/simple; bh=GTU39OVki/AXOb5+gpAep3ky1ReqWJfjSGGsMzkKEt0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=glQHFiw+kaA+R0BAMDLYNMwE1xawMXO8kAS1LeVD4vi8mjG8OIA9UAhm5T77SGrLfGkmR2L9X7WuWatmJ0KRRwANiuNAq53VAiUKgd7Neq4KMvZBL/w8kp013W7O8nlKtlhnE4GkULquayvTS5dxd7yDHUGcDaoXKPuJlbGO6is= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lallFBBP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lallFBBP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1B0FC4CEE7; Thu, 18 Sep 2025 21:10:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758229854; bh=GTU39OVki/AXOb5+gpAep3ky1ReqWJfjSGGsMzkKEt0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lallFBBPAjBv+IgXeDmK8xmeq2JTMVQdw4GaJ6Intk+3jX+WJSReW/BOdSwr4feAq Ag3GTgNXA6reTew+O10yNsdaKxfgC1ityw33jPbFezoRdzlKOgRwFG/t7sFrEJD36j KQ8rTOhk+4oAtUQxuPdsOqyCiy4YxX3UWDHHk5ckfnmDUoVgWPHFSY2u2lEQ56S1cd pHye5FXhyYjZhNT++H3Mn9vz4NpmHRXvb0p9Gfr+97L19JXuTX/pJ63JeHHOnXcs99 xvmldGvVKzaCFPurUbfo9BPVuuufEE6S7THLXH2wsbf4bNclobVMUktueThchCs9v+ yoy1MQnbLYAuw== From: "Rafael J. Wysocki" To: Linux ACPI Cc: Huisong Li , LKML , Linux PM , Mario Limonciello , "Shenoy, Gautham Ranjal" Subject: [PATCH v1 1/2] ACPI: processor: Update cpuidle driver check in __acpi_processor_start() Date: Thu, 18 Sep 2025 23:09:17 +0200 Message-ID: <5044465.31r3eYUQgx@rafael.j.wysocki> Organization: Linux Kernel Development In-Reply-To: <5926523.DvuYhMxLoT@rafael.j.wysocki> References: <5926523.DvuYhMxLoT@rafael.j.wysocki> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Rafael J. Wysocki Commit 7a8c994cbb2d ("ACPI: processor: idle: Optimize ACPI idle driver registration") moved the ACPI idle driver registration to acpi_processor_driver_init() and acpi_processor_power_init() does not register an idle driver any more, so the cpuidle driver check in __acpi_processor_start() needs to be updated to avoid calling acpi_processor_power_init() without a cpuidle driver (in which case the registration of the cpuidle device in that function would fail anyway). Fixes: 7a8c994cbb2d ("ACPI: processor: idle: Optimize ACPI idle driver regi= stration") Signed-off-by: Rafael J. Wysocki Acked-by: lihuisong@huawei.com --- Commit 7a8c994cbb2d is only in linux-next at this point. --- drivers/acpi/processor_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -166,7 +166,7 @@ static int __acpi_processor_start(struct if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS)) dev_dbg(&device->dev, "CPPC data invalid or not present\n"); =20 - if (!cpuidle_get_driver() || cpuidle_get_driver() =3D=3D &acpi_idle_drive= r) + if (cpuidle_get_driver() =3D=3D &acpi_idle_driver) acpi_processor_power_init(pr); =20 acpi_pss_perf_init(pr);