From patchwork Mon Mar 21 09:57:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Luba X-Patchwork-Id: 553422 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 920FDC433F5 for ; Mon, 21 Mar 2022 09:58:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346127AbiCUJ7p (ORCPT ); Mon, 21 Mar 2022 05:59:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346144AbiCUJ7j (ORCPT ); Mon, 21 Mar 2022 05:59:39 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 17E2333E90; Mon, 21 Mar 2022 02:58:12 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 732E5106F; Mon, 21 Mar 2022 02:58:12 -0700 (PDT) Received: from e123648.arm.com (unknown [10.57.22.222]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8F8753F766; Mon, 21 Mar 2022 02:58:09 -0700 (PDT) From: Lukasz Luba To: linux-kernel@vger.kernel.org Cc: lukasz.luba@arm.com, dietmar.eggemann@arm.com, Pierre.Gondois@arm.com, ionela.voinescu@arm.com, viresh.kumar@linaro.org, rafael@kernel.org, daniel.lezcano@linaro.org, linux-pm@vger.kernel.org, mka@chromium.org, nm@ti.com, sboyd@kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, cristian.marussi@arm.com, sudeep.holla@arm.com, matthias.bgg@gmail.com Subject: [RESEND][PATCH 8/8] powercap: DTPM: Check for Energy Model type Date: Mon, 21 Mar 2022 09:57:29 +0000 Message-Id: <20220321095729.20655-9-lukasz.luba@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220321095729.20655-1-lukasz.luba@arm.com> References: <20220321095729.20655-1-lukasz.luba@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The Energy Model power values might be artificial. In such case it's safe to bail out during the registration, since the PowerCap framework supports only micro-Watts. Signed-off-by: Lukasz Luba Reviewed-by: Ionela Voinescu --- drivers/powercap/dtpm_cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/powercap/dtpm_cpu.c b/drivers/powercap/dtpm_cpu.c index bca2f912d349..f5eced0842b3 100644 --- a/drivers/powercap/dtpm_cpu.c +++ b/drivers/powercap/dtpm_cpu.c @@ -211,7 +211,7 @@ static int __dtpm_cpu_setup(int cpu, struct dtpm *parent) return 0; pd = em_cpu_get(cpu); - if (!pd) + if (!pd || em_is_artificial(pd)) return -EINVAL; dtpm_cpu = kzalloc(sizeof(*dtpm_cpu), GFP_KERNEL);