From: Randy Dunlap <rdun...@infradead.org> 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 <rdun...@infradead.org> Cc: Evgeniy Polyakov <z...@ioremap.net> Cc: netdev@vger.kernel.org --- drivers/connector/connector.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- linux-next-20180706.orig/drivers/connector/connector.c +++ linux-next-20180706/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;