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| author | Bob Moore <robert.moore@intel.com> | 2019-10-25 23:36:52 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-10-28 22:12:46 +0100 |
| commit | 42d939fadbfa96d2983c804bb1980699a6c1f221 (patch) | |
| tree | 465085f19015379007c85a248ab0583c4646b4d9 | |
| parent | ACPICA: More Clang changes (diff) | |
| download | linux-42d939fadbfa96d2983c804bb1980699a6c1f221.tar.xz linux-42d939fadbfa96d2983c804bb1980699a6c1f221.zip | |
ACPICA: Add new external interface, acpi_unload_table()
ACPICA commit c69369cd9cf0134e1aac516e97d612947daa8dc2
Unload a table via the table_index.
Link: https://github.com/acpica/acpica/commit/c69369cd
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 32 | ||||
| -rw-r--r-- | include/acpi/acpixf.h | 3 |
2 files changed, 35 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index 86f1693f6d29..ce86e7945e90 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -390,3 +390,35 @@ acpi_status acpi_unload_parent_table(acpi_handle object) } ACPI_EXPORT_SYMBOL(acpi_unload_parent_table) +/******************************************************************************* + * + * FUNCTION: acpi_unload_table + * + * PARAMETERS: table_index - Index as returned by acpi_load_table + * + * RETURN: Status + * + * DESCRIPTION: Via the table_index representing an SSDT or OEMx table, unloads + * the table and deletes all namespace objects associated with + * that table. Unloading of the DSDT is not allowed. + * Note: Mainly intended to support hotplug removal of SSDTs. + * + ******************************************************************************/ +acpi_status acpi_unload_table(u32 table_index) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_unload_table); + + if (table_index == 1) { + + /* table_index==1 means DSDT is the owner. DSDT cannot be unloaded */ + + return_ACPI_STATUS(AE_TYPE); + } + + status = acpi_tb_unload_table(table_index); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_unload_table) diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index e5e041413581..109b2f14b6c6 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -461,6 +461,9 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_load_table(struct acpi_table_header *table)) ACPI_EXTERNAL_RETURN_STATUS(acpi_status + acpi_unload_table(u32 table_index)) + +ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_unload_parent_table(acpi_handle object)) ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION |