ACPI / button: fix defined but not used warning

Fix a build warning in the ACPI button driver when CONFIG_PROC_FS
is not enabled by marking the unused function as __maybe_unused.

../drivers/acpi/button.c:252:12: warning: 'acpi_button_state_seq_show' defined but not used [-Wunused-function]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Randy Dunlap 2018-07-07 08:25:01 -07:00 committed by Rafael J. Wysocki
parent 7c058c7c74
commit 2c4c2a71bd

View File

@ -21,6 +21,7 @@
#define pr_fmt(fmt) "ACPI: button: " fmt #define pr_fmt(fmt) "ACPI: button: " fmt
#include <linux/compiler.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/init.h> #include <linux/init.h>
@ -249,7 +250,8 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
return ret; return ret;
} }
static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) static int __maybe_unused acpi_button_state_seq_show(struct seq_file *seq,
void *offset)
{ {
struct acpi_device *device = seq->private; struct acpi_device *device = seq->private;
int state; int state;