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ACPICA: make acpi_load_table() return table index 

ACPICA commit d1716a829d19be23277d9157c575a03b9abb7457

For unloading an ACPI table, it is necessary to provide the index of
the table. The method intended for dynamically loading or hotplug
addition of tables, acpi_load_table(), should provide this information
via an optional pointer to the loaded table index.

This patch fixes the table unload function of acpi_configfs.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: d06c47e3dd ("ACPI: configfs: Resolve objects on host-directed table loads")
Link: https://github.com/acpica/acpica/commit/d1716a82
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Nikolaus Voss 2019-10-25 14:36:53 -07:00 committed by Rafael J. Wysocki
parent 42d939fadb
commit 1770093c5b
5 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/acpi_configfs.c
View File

@ -53,7 +53,7 @@ static ssize_t acpi_table_aml_write(struct config_item *cfg,
if (!table->header)
return -ENOMEM;
ret = acpi_load_table(table->header);
ret = acpi_load_table(table->header, &table->index);
if (ret) {
kfree(table->header);
table->header = NULL;
@ -223,7 +223,7 @@ static void acpi_table_drop_item(struct config_group *group,
struct acpi_table *table = container_of(cfg, struct acpi_table, cfg);
ACPI_INFO(("Host-directed Dynamic ACPI Table Unload"));
acpi_tb_unload_table(table->index);
acpi_unload_table(table->index);
}
static struct configfs_group_operations acpi_table_group_ops = {

2
drivers/acpi/acpica/dbfileio.c
View File

@ -93,7 +93,7 @@ acpi_status acpi_db_load_tables(struct acpi_new_table_desc *list_head)
while (table_list_head) {
table = table_list_head->table;
status = acpi_load_table(table);
status = acpi_load_table(table, NULL);
if (ACPI_FAILURE(status)) {
if (status == AE_ALREADY_EXISTS) {
acpi_os_printf

8
drivers/acpi/acpica/tbxfload.c
View File

@ -268,6 +268,8 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
*
* PARAMETERS: table - Pointer to a buffer containing the ACPI
* table to be loaded.
* table_idx - Pointer to a u32 for storing the table
* index, might be NULL
*
* RETURN: Status
*
@ -278,7 +280,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
* to ensure that the table is not deleted or unmapped.
*
******************************************************************************/
acpi_status acpi_load_table(struct acpi_table_header *table)
acpi_status acpi_load_table(struct acpi_table_header *table, u32 *table_idx)
{
acpi_status status;
u32 table_index;
@ -297,6 +299,10 @@ acpi_status acpi_load_table(struct acpi_table_header *table)
status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
FALSE, &table_index);
if (table_idx) {
*table_idx = table_index;
}
if (ACPI_SUCCESS(status)) {
/* Complete the initialization/resolution of new objects */

2
drivers/firmware/efi/efi.c
View File

@ -296,7 +296,7 @@ static __init int efivar_ssdt_load(void)
goto free_data;
}
ret = acpi_load_table(data);
ret = acpi_load_table(data, NULL);
if (ret) {
pr_err("failed to load table: %d\n", ret);
goto free_data;

3
include/acpi/acpixf.h
View File

@ -458,7 +458,8 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
u8 physical))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_load_table(struct acpi_table_header *table))
acpi_load_table(struct acpi_table_header *table,
u32 *table_idx))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_unload_table(u32 table_index))