x86/APM: Fix build warning when PROC_FS is not enabled

Fix build warning in apm_32.c when CONFIG_PROC_FS is not enabled:

../arch/x86/kernel/apm_32.c:1643:12: warning: 'proc_apm_show' defined but not used [-Wunused-function]
 static int proc_apm_show(struct seq_file *m, void *v)

Fixes: 3f3942aca6da ("proc: introduce proc_create_single{,_data}")
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Cc: Jiri Kosina <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index ec00d1ff5098b3701b1f1af324be2576676b7786..f7151cd03cb08145a5c596d28c676abaf8e1f1bf 100644 (file)
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1640,6 +1640,7 @@ static int do_open(struct inode *inode, struct file *filp)
        return 0;
 }
 
+#ifdef CONFIG_PROC_FS
 static int proc_apm_show(struct seq_file *m, void *v)
 {
        unsigned short  bx;
@@ -1719,6 +1720,7 @@ static int proc_apm_show(struct seq_file *m, void *v)
                   units);
        return 0;
 }
+#endif
 
 static int apm(void *unused)
 {