Commit 42d939fa authored by Bob Moore's avatar Bob Moore Committed by Rafael J. Wysocki
Browse files

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: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarErik Schmauss <erik.schmauss@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent aaf7566f

drivers/acpi/acpica/tbxfload.c

+32 −0
Original line number Diff line number Diff line
@@ -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)

include/acpi/acpixf.h

+3 −0
Original line number Diff line number Diff line
@@ -460,6 +460,9 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION 
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))

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