platform/x86: toshiba_acpi: Fix defined but not used build warnings

[ 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@infradead.org>
Cc: Azael Avalos <coproscefalo@gmail.com>
Cc: platform-driver-x86@vger.kernel.org
Cc: Andy Shevchenko <andy@infradead.org>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index f774cb576ffa0631d2200007785161a457408083..1ff95b5a429db0bfab81e46e149dae82f6f8db42 100644 (file)
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -34,6 +34,7 @@
 #define TOSHIBA_ACPI_VERSION   "0.23"
 #define PROC_INTERFACE_VERSION 1
 
+#include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -1472,7 +1473,7 @@ static const struct file_operations keys_proc_fops = {
        .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);