From nobody Sat Sep 21 04:45:48 2024 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 D8C7FC7EE39 for ; Wed, 1 Mar 2023 20:17:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230117AbjCAURA (ORCPT ); Wed, 1 Mar 2023 15:17:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229931AbjCAUQU (ORCPT ); Wed, 1 Mar 2023 15:16:20 -0500 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1D7151F8B for ; Wed, 1 Mar 2023 12:15:56 -0800 (PST) Received: by mail-wr1-x42e.google.com with SMTP id j2so14483230wrh.9 for ; Wed, 01 Mar 2023 12:15:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1677701751; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=GP9BUpkAAnItZXgZisVn1kO1oz9qmtA+bV8jqWpOtJM=; b=w20389TVo7cyTMlF1uBdGLoV3aG9r8YnIBrEEaUmS9NigcXApbhiu+OjC9ruIiIyfC qNCdf4BKsBXu3pPRYxFsPeKFTm3gYDg3uMAMMVTVEmgan5U/bqXsoEB63X4rxO4Pn3lr STj1QF6J54achUo1iLzZTLul3chly+tXnbQHYT169j5RNdJk3Y6c2r7Xh4gZvAzZ260/ HszIq/U4S41qFWXpL71jXGfFIngIdvBLkbXJPomnbPjLWH86lNjdQSlBWb07wjK6vtGl 5QAIn0Ux8tUZW/347UD7g6foztFrY++6eH+t7cDjy8ddi5k7jnpowdUOs2fBgR2KDJUs +70w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1677701751; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GP9BUpkAAnItZXgZisVn1kO1oz9qmtA+bV8jqWpOtJM=; b=vNfuzPEtzZFzTAygtR3d2d9ls6gKZgaJ3+62GA67c7J1wuSzNnrtW6ed7yySAQJHcq dJ6H9sabN+2hoxnbvCSpC9nPe9E0nwwrU4FasgaNjieqrszwOba/31E/COnsOvRWI9zE vwBgnG7HIWCRyZAeYLFkRdN9zOkCLpVeNS01HaJ38jovXRzc4KpUlrzp4Ln2NwXo/3jC tfr+iVVGw4hEEC/S/TU0DtxssBvClcHkcpAucMADrcfbN20fQhn0Iiw6EgH/o13/qtNB qM0m2oIYsy4pEOQ6ncRYSSmNSRaCufOWzLm8DWQ4sdWledzIzX5Vpvr2qQdIYXkAuIjY dAOA== X-Gm-Message-State: AO0yUKU7Wfzn3dj0NHmpxe2YRQe5Jz0+lELzspjEBs7V9HiTVM0QPP9M uVhfGbu46LaVVUxa5vE88VUIqg== X-Google-Smtp-Source: AK7set8XUqwRo5r5lojj7sUCgZls1QjoUg3zR+RESxHPeB+d5LlWXJhnxfeLre8oPm3UQJDLA0WWYg== X-Received: by 2002:adf:ff8f:0:b0:2c7:1757:3a8e with SMTP id j15-20020adfff8f000000b002c717573a8emr5126686wrr.34.1677701751124; Wed, 01 Mar 2023 12:15:51 -0800 (PST) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:6ffe:ce4f:bd31:1e6d]) by smtp.gmail.com with ESMTPSA id x16-20020a1c7c10000000b003e70a7c1b73sm576546wmc.16.2023.03.01.12.15.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Mar 2023 12:15:50 -0800 (PST) From: Daniel Lezcano To: rafael@kernel.org, daniel.lezcano@linaro.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Kaestle , Hans de Goede , Mark Gross , platform-driver-x86@vger.kernel.org (open list:ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER) Subject: [PATCH v5 17/18] thermal/drivers/acerhdf: Make interval setting only at module load time Date: Wed, 1 Mar 2023 21:14:45 +0100 Message-Id: <20230301201446.3713334-18-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230301201446.3713334-1-daniel.lezcano@linaro.org> References: <20230301201446.3713334-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The thermal zone device structure is in the process of being private to the thermal framework core code. This driver is directly accessing and changing the monitoring polling rate. After discussing with the maintainers of this driver, having the polling interval at module loading time is enough for their purpose. Change the code to take into account the interval when the module is loaded but restrict the permissions so the value can not be changed afterwards. Signed-off-by: Daniel Lezcano Acked-by: Peter Kaestle Reviewed-by: Hans de Goede --- drivers/platform/x86/acerhdf.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 1956469c3457..61f1c3090867 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -79,7 +79,6 @@ static unsigned int list_supported; static unsigned int fanstate =3D ACERHDF_FAN_AUTO; static char force_bios[16]; static char force_product[16]; -static unsigned int prev_interval; static struct thermal_zone_device *thz_dev; static struct thermal_cooling_device *cl_dev; static struct platform_device *acerhdf_dev; @@ -346,20 +345,15 @@ static void acerhdf_check_param(struct thermal_zone_d= evice *thermal) trips[0].temperature =3D fanon; trips[0].hysteresis =3D fanon - fanoff; =20 - if (kernelmode && prev_interval !=3D interval) { + if (kernelmode) { if (interval > ACERHDF_MAX_INTERVAL) { pr_err("interval too high, set to %d\n", ACERHDF_MAX_INTERVAL); interval =3D ACERHDF_MAX_INTERVAL; } + if (verbose) pr_notice("interval changed to: %d\n", interval); - - if (thermal) - thermal->polling_delay_jiffies =3D - round_jiffies(msecs_to_jiffies(interval * 1000)); - - prev_interval =3D interval; } } =20 @@ -807,5 +801,5 @@ static const struct kernel_param_ops interval_ops =3D { .get =3D param_get_uint, }; =20 -module_param_cb(interval, &interval_ops, &interval, 0600); +module_param_cb(interval, &interval_ops, &interval, 0000); MODULE_PARM_DESC(interval, "Polling interval of temperature check"); --=20 2.34.1