From patchwork Wed Apr 19 08:33:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 675519 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 0E359C77B73 for ; Wed, 19 Apr 2023 08:34:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232736AbjDSIeX (ORCPT ); Wed, 19 Apr 2023 04:34:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232695AbjDSIeJ (ORCPT ); Wed, 19 Apr 2023 04:34:09 -0400 Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58F7B1024C for ; Wed, 19 Apr 2023 01:33:54 -0700 (PDT) Received: by mail-wm1-x32c.google.com with SMTP id r15so7135362wmo.1 for ; Wed, 19 Apr 2023 01:33:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681893232; x=1684485232; 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=ZFr0nNH7gKvfGd1xmrDdwsbO4A4hFnitswKb+PdA3E8=; b=W/Tqw/dMvtEe3FajEF9yCwGnfzmUZEjH+Tif9EgeaHJIdCUZf++mkSpx6eNr2zFb3B ev+9mSAGmiJOJ/xVRku+fLPsaOHjzLH2vkIUvhFYMXg7qd0Fk1N8vHRCL4CXq+60iHAG KpfoO799aCEpb1snZiiflY8lj4Yo2MXdArjEAeSUWr98PgdJ6U8mRomWqj566wQR1ZhZ LhHNRCim/aJ0ubva7AbwrKjtojJ2zcS0hQABDMbqunXxyXfaEQcEd12Y4zJsuyqNN9B3 iUAWLfYe3gGZ+lxE+JU/R7HFQWChRETiFZ0meFXZBsdJZdALiwBMGzcLOM7cIEOkwhvT QgQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681893232; x=1684485232; 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=ZFr0nNH7gKvfGd1xmrDdwsbO4A4hFnitswKb+PdA3E8=; b=f2tbym2p65W9JLXVKLqQO5j0nT3QhDoUuz6Cj1qctX/FaMhIV5hZe5O6+BGnNORljI Rg1sZui5CUb2RyEZedwew1m0UQDgtJE99H0fYXfO2q+tU9LP5Xq0VsS4DDiM+RKax1AU f4l/J58cMBc+SFmfl1DCDJCl5xnSufC9yhwhQNQQ5SpG4mmUIIhBqZnTkQSN4e5aIEF3 KcGfdasesP987JDZwWZSULMVFFeEQ3EqwiNOexwIQbz6nUDq9gLGP6J7LHe34JjaxyOD GdDcJcT9EIBQdUa+yRnEJQBVzzXO+i6/DifcFrEllZ9VMchpNuGIVEETfPEHdLq1EkZ0 HdJA== X-Gm-Message-State: AAQBX9e8jpnxql61U0iUU+gcZvxgc9JiAf9Z8Mbx9aHpyUDLfiWrif7m zd0pljKEAyMWuoLpDot5fBVeTw== X-Google-Smtp-Source: AKy350bEQa6B5ZqLGlKS+oPmo6grbCsWKBRQGeNInPxEGgjFovGVroUCPj9Lo+sCs3xC28bfbvM3Cg== X-Received: by 2002:a1c:cc05:0:b0:3ef:d8c6:4bc0 with SMTP id h5-20020a1ccc05000000b003efd8c64bc0mr14793730wmb.40.1681893232730; Wed, 19 Apr 2023 01:33:52 -0700 (PDT) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:a794:9fb2:29fb:606d]) by smtp.gmail.com with ESMTPSA id s5-20020a1cf205000000b003ed1ff06faasm1442033wmc.19.2023.04.19.01.33.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 01:33:52 -0700 (PDT) From: Daniel Lezcano To: daniel.lezcano@linaro.org, rafael@kernel.org Cc: rui.zhang@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Len Brown , linux-acpi@vger.kernel.org (open list:ACPI THERMAL DRIVER) Subject: [PATCH v4 5/6] thermal/drivers/acpi: Move to dedicated function sysfs extra attr creation Date: Wed, 19 Apr 2023 10:33:42 +0200 Message-Id: <20230419083343.505780-6-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230419083343.505780-1-daniel.lezcano@linaro.org> References: <20230419083343.505780-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The ACPI thermal driver creates extra sysfs attributes in its own directory pointing to the thermal zone it is related to and add a pointer to the sysfs ACPI thermal device from the thermal zone sysfs entry. This is very specific to this ACPI thermal driver, let's encapsulate the related creation/deletion code to group it inside a function we can identify later for removal if needed. Signed-off-by: Daniel Lezcano --- drivers/acpi/thermal.c | 52 ++++++++++++++++++++++++++---------------- 1 file changed, 32 insertions(+), 20 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 5763db4528b8..9a90b1a117cd 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -787,9 +787,34 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = { .critical = acpi_thermal_zone_device_critical, }; +static int acpi_thermal_zone_sysfs_add(struct acpi_thermal *tz) +{ + struct device *tzdev = thermal_zone_device(tz->thermal_zone); + int ret; + + ret = sysfs_create_link(&tz->device->dev.kobj, + &tzdev->kobj, "thermal_zone"); + if (ret) + return ret; + + ret = sysfs_create_link(&tzdev->kobj, + &tz->device->dev.kobj, "device"); + if (ret) + sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone"); + + return ret; +} + +static void acpi_thermal_zone_sysfs_remove(struct acpi_thermal *tz) +{ + struct device *tzdev = thermal_zone_device(tz->thermal_zone); + + sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone"); + sysfs_remove_link(&tzdev->kobj, "device"); +} + static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) { - struct device *tzdev; int trips = 0; int result; acpi_status status; @@ -821,23 +846,15 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) if (IS_ERR(tz->thermal_zone)) return -ENODEV; - tzdev = thermal_zone_device(tz->thermal_zone); - - result = sysfs_create_link(&tz->device->dev.kobj, - &tzdev->kobj, "thermal_zone"); + result = acpi_thermal_zone_sysfs_add(tz); if (result) goto unregister_tzd; - - result = sysfs_create_link(&tzdev->kobj, - &tz->device->dev.kobj, "device"); - if (result) - goto remove_tz_link; - + status = acpi_bus_attach_private_data(tz->device->handle, tz->thermal_zone); if (ACPI_FAILURE(status)) { result = -ENODEV; - goto remove_dev_link; + goto remove_links; } result = thermal_zone_device_enable(tz->thermal_zone); @@ -851,10 +868,8 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) acpi_bus_detach: acpi_bus_detach_private_data(tz->device->handle); -remove_dev_link: - sysfs_remove_link(&tzdev->kobj, "device"); -remove_tz_link: - sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone"); +remove_links: + acpi_thermal_zone_sysfs_remove(tz); unregister_tzd: thermal_zone_device_unregister(tz->thermal_zone); @@ -863,10 +878,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz) { - struct device *tzdev = thermal_zone_device(tz->thermal_zone); - - sysfs_remove_link(&tz->device->dev.kobj, "thermal_zone"); - sysfs_remove_link(&tzdev->kobj, "device"); + acpi_thermal_zone_sysfs_remove(tz); thermal_zone_device_unregister(tz->thermal_zone); tz->thermal_zone = NULL; acpi_bus_detach_private_data(tz->device->handle);