ACPI: introduce helper function acpi_execute_simple_method()

Introduce helper function acpi_execute_simple_method() and use it in
a number of places to simplify code.

[rjw: Changelog]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index b08d97376f84..87b85882b5df 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -510,3 +510,15 @@ bool acpi_has_method(acpi_handle handle, char *name)
         return ACPI_SUCCESS(acpi_get_handle(handle, name, &tmp));
 }
 EXPORT_SYMBOL(acpi_has_method);
+
+acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
+                                       u64 arg)
+{
+        union acpi_object obj = { .type = ACPI_TYPE_INTEGER };
+        struct acpi_object_list arg_list = { .count = 1, .pointer = &obj, };
+
+        obj.integer.value = arg;
+
+        return acpi_evaluate_object(handle, method, &arg_list, NULL);
+}
+EXPORT_SYMBOL(acpi_execute_simple_method);