From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
---
drivers/acpi/button.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- linux-next-20180706.orig/drivers/acpi/button.c
+++ linux-next-20180706/drivers/acpi/button.c
@@ -21,6 +21,7 @@
#define pr_fmt(fmt) "ACPI: button: " fmt
+#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -249,7 +250,8 @@ static int acpi_lid_notify_state(struct
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;
int state;
--
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