[PATCH 4.9 041/111] platform/x86: toshiba_acpi: Fix defined but not used build warnings

From: Greg Kroah-Hartman
Date: Mon Sep 24 2018 - 08:01:33 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

[ Upstream commit c2e2a618eb7104e18fdcf739d4d911563812a81c ]

Fix a build warning in toshiba_acpi.c when CONFIG_PROC_FS is not enabled
by marking the unused function as __maybe_unused.

../drivers/platform/x86/toshiba_acpi.c:1685:12: warning: 'version_proc_show' defined but not used [-Wunused-function]

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Azael Avalos <coproscefalo@xxxxxxxxx>
Cc: platform-driver-x86@xxxxxxxxxxxxxxx
Cc: Andy Shevchenko <andy@xxxxxxxxxxxxx>
Signed-off-by: Darren Hart (VMware) <dvhart@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/toshiba_acpi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -34,6 +34,7 @@
#define TOSHIBA_ACPI_VERSION "0.24"
#define PROC_INTERFACE_VERSION 1

+#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -1687,7 +1688,7 @@ static const struct file_operations keys
.write = keys_proc_write,
};

-static int version_proc_show(struct seq_file *m, void *v)
+static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);