[PATCH net-next] rtl8xxxu: Fix non static symbol warning

[Wei Yongjun <weiyj.lk@xxxxxxxxx>]

From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>

Fixes the following sparse warning:

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c:1559:6: warning:
 symbol 'rtl8192eu_power_off' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
index a793fed..a1178c5 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
@@ -1556,7 +1556,7 @@ static int rtl8192eu_power_on(struct rtl8xxxu_priv *priv)
 	return ret;
 }
 
-void rtl8192eu_power_off(struct rtl8xxxu_priv *priv)
+static void rtl8192eu_power_off(struct rtl8xxxu_priv *priv)
 {
 	u8 val8;
 	u16 val16;