connector: fix defined but not used warning

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

../drivers/connector/connector.c:242:12: warning: 'cn_proc_show' defined but not used [-Wunused-function]

Signed-off-by: Randy Dunlap <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index e718b8c69a566713362f16c7d6795a86f4c79912..eeb7d31cbda5b2794afad4c9fd0ab65c8849240d 100644 (file)
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -19,6 +19,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/list.h>
@@ -239,7 +240,7 @@ void cn_del_callback(struct cb_id *id)
 }
 EXPORT_SYMBOL_GPL(cn_del_callback);
 
-static int cn_proc_show(struct seq_file *m, void *v)
+static int __maybe_unused cn_proc_show(struct seq_file *m, void *v)
 {
        struct cn_queue_dev *dev = cdev.cbdev;
        struct cn_callback_entry *cbq;