From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 210CFC2D0A3 for ; Tue, 3 Nov 2020 20:52:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD9DF223AC for ; Tue, 3 Nov 2020 20:52:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604436766; bh=mM9p67JparyPNl0jBq+FJskXxSCBycxRnaITaoh7xgE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=B52unoiKc8LxyWWDWWuo7zPBr3FE39ssmWa0jb+huIdGEuPVz/sj/pKCa2mcKn0TH l9NJ+AygIB4QnCaXGTSCgv+jsgZERjy4vbsldCBFGNqrfiZpSC3grIjV3UGQn47x3d 9tY1hexWypQBQMAozinLvLV6SXDoYId/6et5Mzyw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732150AbgKCUwq (ORCPT ); Tue, 3 Nov 2020 15:52:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:49744 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732137AbgKCUwo (ORCPT ); Tue, 3 Nov 2020 15:52:44 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2952B2236F; Tue, 3 Nov 2020 20:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604436763; bh=mM9p67JparyPNl0jBq+FJskXxSCBycxRnaITaoh7xgE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nUijQ7oUPq0XGeBsKXd+bKsiyXtfhTo8dvC4ACl+YjJpbAAWiBHiIJWg7cUl7h95V n4pPeUgQO9k+S9icyTkvvIEfFORU6pFF7yuaGmAi7zhaADZ+PaDBZlGZ95wykHIvuO nSXWpYbQcm0B8rbHP8FoDedH6XrU+Ww0kh8+lEfs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Rafael J. Wysocki" Subject: [PATCH 5.9 385/391] cpufreq: Introduce cpufreq_driver_test_flags() Date: Tue, 3 Nov 2020 21:37:16 +0100 Message-Id: <20201103203413.141104074@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201103203348.153465465@linuxfoundation.org> References: <20201103203348.153465465@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rafael J. Wysocki commit a62f68f5ca53ab61cba2f0a410d0add7a6d54a52 upstream. Add a helper function to test the flags of the cpufreq driver in use againt a given flags mask. In particular, this will be needed to test the CPUFREQ_NEED_UPDATE_LIMITS cpufreq driver flag in the schedutil governor. Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/cpufreq.c | 12 ++++++++++++ include/linux/cpufreq.h | 1 + 2 files changed, 13 insertions(+) --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1904,6 +1904,18 @@ void cpufreq_resume(void) } /** + * cpufreq_driver_test_flags - Test cpufreq driver's flags against given ones. + * @flags: Flags to test against the current cpufreq driver's flags. + * + * Assumes that the driver is there, so callers must ensure that this is the + * case. + */ +bool cpufreq_driver_test_flags(u16 flags) +{ + return !!(cpufreq_driver->flags & flags); +} + +/** * cpufreq_get_current_driver - return current driver's name * * Return the name string of the currently loaded cpufreq driver --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -428,6 +428,7 @@ struct cpufreq_driver { int cpufreq_register_driver(struct cpufreq_driver *driver_data); int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); +bool cpufreq_driver_test_flags(u16 flags); const char *cpufreq_get_current_driver(void); void *cpufreq_get_driver_data(void);