[PATCH v1 1/4] ACPI: TAD: Use __ATTRIBUTE_GROUPS() macro

["Rafael J. Wysocki" <rafael@kernel.org>]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Recent commit 93afe8ba9b01 ("ACPI: TAD: Use dev_groups in struct
device_driver") switched over the ACPI TAD driver to using device
attruibute groups instead of creating and removing the device sysfs
attributes directly, but it might go one step farther and use the
__ATTRIBUTE_GROUPS() macro which would reduce the code size slightly.

Do it now.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_tad.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/drivers/acpi/acpi_tad.c
+++ b/drivers/acpi/acpi_tad.c
@@ -605,15 +605,12 @@ static umode_t acpi_tad_attr_is_visible(
 	return 0;
 }
 
-static const struct attribute_group acpi_tad_attr_group = {
+static const struct attribute_group acpi_tad_group = {
 	.attrs	= acpi_tad_attrs,
 	.is_visible = acpi_tad_attr_is_visible,
 };
 
-static const struct attribute_group *acpi_tad_attr_groups[] = {
-	&acpi_tad_attr_group,
-	NULL,
-};
+__ATTRIBUTE_GROUPS(acpi_tad);
 
 #ifdef CONFIG_RTC_CLASS
 /* RTC class device interface */
@@ -885,7 +882,7 @@ static struct platform_driver acpi_tad_d
 	.driver = {
 		.name = "acpi-tad",
 		.acpi_match_table = acpi_tad_ids,
-		.dev_groups = acpi_tad_attr_groups,
+		.dev_groups = acpi_tad_groups,
 	},
 	.probe = acpi_tad_probe,
 	.remove = acpi_tad_remove,