From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753329AbaCAUmb (ORCPT ); Sat, 1 Mar 2014 15:42:31 -0500 Received: from v094114.home.net.pl ([79.96.170.134]:57896 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753201AbaCAUma (ORCPT ); Sat, 1 Mar 2014 15:42:30 -0500 From: "Rafael J. Wysocki" To: ACPI Devel Maling List Cc: Linux Kernel Mailing List , Toshi Kani Subject: [PATCH] ACPI / hotplug: Rework deferred execution of acpi_device_hotplug() Date: Sat, 01 Mar 2014 21:57:34 +0100 Message-ID: <1573287.V189PcUPxA@vostro.rjw.lan> User-Agent: KMail/4.11.5 (Linux/3.13.0+; KDE/4.11.5; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rafael J. Wysocki Since the only function executed by acpi_hotplug_execute() is acpi_device_hotplug() and it only is called by the ACPI core, simplify its definition so that it only takes two arguments, the ACPI device object pointer and event code, rename it to acpi_hotplug_schedule() and move its header from acpi_bus.h to the ACPI core's internal header file internal.h. Modify the definition of acpi_device_hotplug() so that its first argument is an ACPI device object pointer and modify the definition of struct acpi_hp_work accordingly. Signed-off-by: Rafael J. Wysocki --- On top of current linux-next, 3.15 material. Thanks! --- drivers/acpi/bus.c | 2 +- drivers/acpi/internal.h | 3 ++- drivers/acpi/osl.c | 14 ++++++-------- drivers/acpi/scan.c | 6 ++---- include/acpi/acpi_bus.h | 4 ---- 5 files changed, 11 insertions(+), 18 deletions(-) Index: linux-pm/drivers/acpi/internal.h =================================================================== --- linux-pm.orig/drivers/acpi/internal.h +++ linux-pm/drivers/acpi/internal.h @@ -78,8 +78,9 @@ void acpi_lpss_init(void); static inline void acpi_lpss_init(void) {} #endif +acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); bool acpi_queue_hotplug_work(struct work_struct *work); -void acpi_device_hotplug(void *data, u32 src); +void acpi_device_hotplug(struct acpi_device *adev, u32 src); bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); /* -------------------------------------------------------------------------- Index: linux-pm/drivers/acpi/osl.c =================================================================== --- linux-pm.orig/drivers/acpi/osl.c +++ linux-pm/drivers/acpi/osl.c @@ -1168,8 +1168,7 @@ void acpi_os_wait_events_complete(void) struct acpi_hp_work { struct work_struct work; - acpi_hp_callback func; - void *data; + struct acpi_device *adev; u32 src; }; @@ -1178,25 +1177,24 @@ static void acpi_hotplug_work_fn(struct struct acpi_hp_work *hpw = container_of(work, struct acpi_hp_work, work); acpi_os_wait_events_complete(); - hpw->func(hpw->data, hpw->src); + acpi_device_hotplug(hpw->adev, hpw->src); kfree(hpw); } -acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src) +acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src) { struct acpi_hp_work *hpw; ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Scheduling function [%p(%p, %u)] for deferred execution.\n", - func, data, src)); + "Scheduling hotplug event (%p, %u) for deferred execution.\n", + adev, src)); hpw = kmalloc(sizeof(*hpw), GFP_KERNEL); if (!hpw) return AE_NO_MEMORY; INIT_WORK(&hpw->work, acpi_hotplug_work_fn); - hpw->func = func; - hpw->data = data; + hpw->adev = adev; hpw->src = src; /* * We can't run hotplug code in kacpid_wq/kacpid_notify_wq etc., because Index: linux-pm/include/acpi/acpi_bus.h =================================================================== --- linux-pm.orig/include/acpi/acpi_bus.h +++ linux-pm/include/acpi/acpi_bus.h @@ -457,10 +457,6 @@ static inline bool acpi_device_enumerate return adev && adev->flags.initialized && adev->flags.visited; } -typedef void (*acpi_hp_callback)(void *data, u32 src); - -acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src); - /** * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver * @__acpi_driver: acpi_driver struct Index: linux-pm/drivers/acpi/scan.c =================================================================== --- linux-pm.orig/drivers/acpi/scan.c +++ linux-pm/drivers/acpi/scan.c @@ -481,10 +481,9 @@ static int acpi_generic_hotplug_event(st return -EINVAL; } -void acpi_device_hotplug(void *data, u32 src) +void acpi_device_hotplug(struct acpi_device *adev, u32 src) { u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; - struct acpi_device *adev = data; int error = -ENODEV; lock_device_hotplug(); @@ -579,8 +578,7 @@ acpi_eject_store(struct device *d, struc return -ENODEV; get_device(&acpi_device->dev); - status = acpi_hotplug_execute(acpi_device_hotplug, acpi_device, - ACPI_OST_EC_OSPM_EJECT); + status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) return count; Index: linux-pm/drivers/acpi/bus.c =================================================================== --- linux-pm.orig/drivers/acpi/bus.c +++ linux-pm/drivers/acpi/bus.c @@ -398,7 +398,7 @@ static void acpi_bus_notify(acpi_handle case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: case ACPI_NOTIFY_EJECT_REQUEST: - status = acpi_hotplug_execute(acpi_device_hotplug, adev, type); + status = acpi_hotplug_schedule(adev, type); if (ACPI_SUCCESS(status)) return; default: