From patchwork Thu Jun 1 13:17:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wilczynski X-Patchwork-Id: 688323 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 85D0FC7EE23 for ; Thu, 1 Jun 2023 13:43:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233678AbjFANno (ORCPT ); Thu, 1 Jun 2023 09:43:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233215AbjFANnj (ORCPT ); Thu, 1 Jun 2023 09:43:39 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D91F3139; Thu, 1 Jun 2023 06:43:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1685627018; x=1717163018; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Jrn9jLUoNqgpgWSIlur6vSPLt4iltvZpRWGlDjKGO+w=; b=QJjTzim7JAl8VDpCUT6TyeZ4XB/xa0iyA8y1vBdqBeWtroIqCSWaic2z SZI4YdRFjAggYwIjmcoKsO6gaaBLcxXJ5hJqY87G2UY78k7TFE8ND/1dd LbqWfVwjNyELdg0gIflId1vL3kkC8HPEhma0DLo39kvSO8yRz/0TbWI/e kT5Ur6ZudmGg/HTA7g7+HvrG+6sd34g7Qvz0cc+f7Asf/p0lDJZjMFBQ3 uXZGcdYFH13LoRqGRiQ4pW4lTAIwyLCjtq6PzP+KEbVFoD8a2rTIvrvR3 2PD7l6UE7NbaeQgOYX0yS0qH8hdinT8BQF8OtjHnaU6Ar1Em+wXnnUKgV w==; X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="419067202" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="419067202" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 06:18:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="881601623" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="881601623" Received: from hextor.igk.intel.com ([10.123.220.6]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 06:18:55 -0700 From: Michal Wilczynski To: Jean Delvare , Guenter Roeck Cc: Michal Wilczynski , linux-hwmon@vger.kernel.org, linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org, rafael@kernel.org Subject: [PATCH v4 10/35] hwmon/acpi_power_meter: Move handler installing logic to driver Date: Thu, 1 Jun 2023 15:17:13 +0200 Message-Id: <20230601131739.300760-11-michal.wilczynski@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230601131739.300760-3-michal.wilczynski@intel.com> References: <20230601131739.300760-3-michal.wilczynski@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Currently logic for installing notifications from ACPI devices is implemented using notify callback in struct acpi_driver. Preparations are being made to replace acpi_driver with more generic struct platform_driver, which doesn't contain notify callback. Furthermore as of now handlers are being called indirectly through acpi_notify_device(), which decreases performance. Call acpi_device_install_event_handler() at the end of .add() callback. Call acpi_device_remove_event_handler() at the beginning of .remove() callback. Change arguments passed to the notify callback to match with what's required by acpi_device_install_event_handler(). Signed-off-by: Michal Wilczynski --- drivers/hwmon/acpi_power_meter.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index fa28d447f0df..7410ee8693ba 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -817,9 +817,10 @@ static int read_capabilities(struct acpi_power_meter_resource *resource) } /* Handle ACPI event notifications */ -static void acpi_power_meter_notify(struct acpi_device *device, u32 event) +static void acpi_power_meter_notify(acpi_handle handle, u32 event, void *data) { struct acpi_power_meter_resource *resource; + struct acpi_device *device = data; int res; if (!device || !acpi_driver_data(device)) @@ -897,8 +898,12 @@ static int acpi_power_meter_add(struct acpi_device *device) goto exit_remove; } - res = 0; - goto exit; + res = acpi_device_install_event_handler(device, ACPI_DEVICE_NOTIFY, + acpi_power_meter_notify); + if (res) + goto exit_remove; + + return 0; exit_remove: remove_attrs(resource); @@ -906,7 +911,7 @@ static int acpi_power_meter_add(struct acpi_device *device) free_capabilities(resource); exit_free: kfree(resource); -exit: + return res; } @@ -917,6 +922,7 @@ static void acpi_power_meter_remove(struct acpi_device *device) if (!device || !acpi_driver_data(device)) return; + acpi_device_remove_event_handler(device, ACPI_DEVICE_NOTIFY, acpi_power_meter_notify); resource = acpi_driver_data(device); hwmon_device_unregister(resource->hwmon_dev); @@ -953,7 +959,6 @@ static struct acpi_driver acpi_power_meter_driver = { .ops = { .add = acpi_power_meter_add, .remove = acpi_power_meter_remove, - .notify = acpi_power_meter_notify, }, .drv.pm = pm_sleep_ptr(&acpi_power_meter_pm), };