[PATCH -next] mfd: ene-kb3930: Make symbol 'kb3930_power_off' static

[Wei Yongjun]

The sparse tool complains as follows:

drivers/mfd/ene-kb3930.c:36:15: warning:
 symbol 'kb3930_power_off' was not declared. Should it be static?

This variable is not used outside of ene-kb3930.c, this commit
marks it static.

Fixes: 753bd752e181 ("mfd: ene-kb3930: Add driver for ENE KB3930 Embedded Controller")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 drivers/mfd/ene-kb3930.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/ene-kb3930.c b/drivers/mfd/ene-kb3930.c
index 1c32ff586816..eb7312bd6361 100644
--- a/drivers/mfd/ene-kb3930.c
+++ b/drivers/mfd/ene-kb3930.c
@@ -33,7 +33,7 @@ struct kb3930 {
 	struct gpio_descs *off_gpios;
 };
 
-struct kb3930 *kb3930_power_off;
+static struct kb3930 *kb3930_power_off;
 
 #define EC_GPIO_WAVE		0
 #define EC_GPIO_OFF_MODE	1