From patchwork Mon Jul 3 08:02:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wilczynski, Michal" X-Patchwork-Id: 13299703 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7569A1FA6 for ; Mon, 3 Jul 2023 08:04:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688371443; x=1719907443; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8UyXWfKO7yUPN8MnLg1ywaUXI/b1qFb1tKTsv4NWR/I=; b=Koy46bzStrvFknCchs3w34G1gOAs14x9aJwx7PVYI73Lqb/B2ak0NVpq h0Jk4YeshPgOjPV9KOfoWa0VZrrBssU7bEY907jCL93XowJ57zvbVNFNp 66Md6ixlADWzzAZTAqM56tUmlXyfS9TZmIEdm0vVM5SeHm9ik3Z3DCQ2J bkwSmSyYRvDsHbrF2W2Ca+t6jJVlCrEAX8vDkv+L/thaLsdGUnZgBFIHs CcLdCNs+PFc7Zf3EVL7H0xMIXbSD+2IX3gs7jkjPT5RnCd/4Svrev3Ld3 bMeOTUQKlEM45evnvaZwCcLfJhOc99sd6t169BmrGl4SOgiYlFsbK2FhE A==; X-IronPort-AV: E=McAfee;i="6600,9927,10759"; a="366304116" X-IronPort-AV: E=Sophos;i="6.01,177,1684825200"; d="scan'208";a="366304116" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2023 01:03:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10759"; a="862994579" X-IronPort-AV: E=Sophos;i="6.01,177,1684825200"; d="scan'208";a="862994579" Received: from powerlab.fi.intel.com ([10.237.71.25]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2023 01:03:39 -0700 From: Michal Wilczynski To: linux-acpi@vger.kernel.org Cc: rafael@kernel.org, dan.j.williams@intel.com, vishal.l.verma@intel.com, lenb@kernel.org, dave.jiang@intel.com, ira.weiny@intel.com, rui.zhang@intel.com, linux-kernel@vger.kernel.org, nvdimm@lists.linux.dev, Michal Wilczynski , "Rafael J . Wysocki" Subject: [PATCH v7 9/9] acpi/thermal: Move handler installing logic to driver Date: Mon, 3 Jul 2023 11:02:52 +0300 Message-ID: <20230703080252.2899090-10-michal.wilczynski@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230703080252.2899090-1-michal.wilczynski@intel.com> References: <20230703080252.2899090-1-michal.wilczynski@intel.com> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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_dev_install_notify_handler() at the end of .add() callback. Call acpi_dev_remove_notify_handler() at the beginning of .remove() callback. Change arguments passed to the notify function to match with what's required by acpi_dev_install_notify_handler(). Remove .notify callback initialization in acpi_driver. While at it, fix whitespaces in .remove() callback. Suggested-by: Rafael J. Wysocki Signed-off-by: Michal Wilczynski --- drivers/acpi/thermal.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index f9f6ebb08fdb..97858ad59d68 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -825,8 +825,9 @@ static void acpi_queue_thermal_check(struct acpi_thermal *tz) queue_work(acpi_thermal_pm_queue, &tz->thermal_check_work); } -static void acpi_thermal_notify(struct acpi_device *device, u32 event) +static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data) { + struct acpi_device *device = data; struct acpi_thermal *tz = acpi_driver_data(device); if (!tz) @@ -997,11 +998,21 @@ static int acpi_thermal_add(struct acpi_device *device) pr_info("%s [%s] (%ld C)\n", acpi_device_name(device), acpi_device_bid(device), deci_kelvin_to_celsius(tz->temperature)); - goto end; + result = acpi_dev_install_notify_handler(device, + ACPI_DEVICE_NOTIFY, + acpi_thermal_notify); + if (result) + goto flush_wq; + + return 0; + +flush_wq: + flush_workqueue(acpi_thermal_pm_queue); + acpi_thermal_unregister_thermal_zone(tz); free_memory: kfree(tz); -end: + return result; } @@ -1012,10 +1023,15 @@ static void acpi_thermal_remove(struct acpi_device *device) if (!device || !acpi_driver_data(device)) return; - flush_workqueue(acpi_thermal_pm_queue); tz = acpi_driver_data(device); + acpi_dev_remove_notify_handler(device, + ACPI_DEVICE_NOTIFY, + acpi_thermal_notify); + + flush_workqueue(acpi_thermal_pm_queue); acpi_thermal_unregister_thermal_zone(tz); + kfree(tz); } @@ -1078,7 +1094,6 @@ static struct acpi_driver acpi_thermal_driver = { .ops = { .add = acpi_thermal_add, .remove = acpi_thermal_remove, - .notify = acpi_thermal_notify, }, .drv.pm = &acpi_thermal_pm, };