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| author | Octavian Purdila <octavian.purdila@intel.com> | 2016-07-08 19:13:09 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-07-08 21:52:35 +0200 |
| commit | 68bdb6773289f8c9a36633f9f6525b127c093258 (patch) | |
| tree | 675807b263d4ce87f5d35beac0f21658d77a3ff5 /drivers/acpi/sysfs.c | |
| parent | 10c7e20b2ff3caa5a8c0e7d60aef5a9c86e60ce8 (diff) | |
| download | linux-68bdb6773289f8c9a36633f9f6525b127c093258.tar.bz2 | |
ACPI: add support for ACPI reconfiguration notifiers
Add support for ACPI reconfiguration notifiers to allow subsystems
to react to changes in the ACPI tables that happen after the initial
enumeration. This is similar with the way dynamic device tree
notifications work.
The reconfigure notifications supported for now are device add and
device remove.
Since ACPICA allows only one table notification handler, this patch
makes the table notifier function generic and moves it out of the
sysfs specific code.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/sysfs.c')
| -rw-r--r-- | drivers/acpi/sysfs.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 4b3a9e27f1b6..358165e9f5b8 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -378,8 +378,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, return; } -static acpi_status -acpi_sysfs_table_handler(u32 event, void *table, void *context) +acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context) { struct acpi_table_attr *table_attr; @@ -452,9 +451,8 @@ static int acpi_tables_sysfs_init(void) kobject_uevent(tables_kobj, KOBJ_ADD); kobject_uevent(dynamic_tables_kobj, KOBJ_ADD); - status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); - return ACPI_FAILURE(status) ? -EINVAL : 0; + return 0; err_dynamic_tables: kobject_put(tables_kobj); err: |