Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [Resend][PATCH 2/5][RFT] ACPI / hotplug: Introduce acpi_install_hotplug_notify_handler() | Date | Wed, 29 Jan 2014 00:59:04 +0100 |
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Introduce a helper routine for installing acpi_hotplug_notify_cb() as an ACPI notify handler for the given ACPI namespace node and make acpi_scan_init_hotplug() use it.
This is to make subsequent changes easier to follow.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- drivers/acpi/scan.c | 15 +++++++++++++-- include/acpi/acpi_bus.h | 2 ++ 2 files changed, 15 insertions(+), 2 deletions(-)
Index: linux-pm/drivers/acpi/scan.c =================================================================== --- linux-pm.orig/drivers/acpi/scan.c +++ linux-pm/drivers/acpi/scan.c @@ -523,6 +523,18 @@ static void acpi_hotplug_notify_cb(acpi_ acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL); } +void acpi_install_hotplug_notify_handler(acpi_handle handle, void *data) +{ + acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, + acpi_hotplug_notify_cb, data); +} + +void acpi_remove_hotplug_notify_handler(acpi_handle handle) +{ + acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, + acpi_hotplug_notify_cb); +} + static ssize_t real_power_state_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1961,8 +1973,7 @@ static void acpi_scan_init_hotplug(acpi_ list_for_each_entry(hwid, &pnp.ids, list) { handler = acpi_scan_match_handler(hwid->id, NULL); if (handler) { - acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, - acpi_hotplug_notify_cb, handler); + acpi_install_hotplug_notify_handler(handle, handler); break; } } Index: linux-pm/include/acpi/acpi_bus.h =================================================================== --- linux-pm.orig/include/acpi/acpi_bus.h +++ linux-pm/include/acpi/acpi_bus.h @@ -434,6 +434,8 @@ static inline bool acpi_device_enumerate typedef void (*acpi_hp_callback)(void *data, u32 src); acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src); +void acpi_install_hotplug_notify_handler(acpi_handle handle, void *data); +void acpi_remove_hotplug_notify_handler(acpi_handle handle); /** * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
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