[PATCH -next] printk/index: Fix -Wunused-function warning

[YueHaibing]

If CONFIG_MODULES is n, we got this:

kernel/printk/index.c:146:13: warning: ‘pi_remove_file’ defined but not used [-Wunused-function]

Move it inside #ifdef block to fix this warning.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 kernel/printk/index.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/printk/index.c b/kernel/printk/index.c
index 58d27272f992..d3709408debe 100644
--- a/kernel/printk/index.c
+++ b/kernel/printk/index.c
@@ -143,12 +143,12 @@ static void pi_create_file(struct module *mod)
 				       mod, &dfs_index_fops);
 }
 
+#ifdef CONFIG_MODULES
 static void pi_remove_file(struct module *mod)
 {
 	debugfs_remove(debugfs_lookup(pi_get_module_name(mod), dfs_index));
 }
 
-#ifdef CONFIG_MODULES
 static int pi_module_notify(struct notifier_block *nb, unsigned long op,
 			    void *data)
 {
-- 
2.17.1