[PATCH] scsi: ufs-mediatek: Make ufs_mtk_wait_link_state as static function

[Stanley Chu]

Fix build warning reported by kernel test robot:
Make ufs_mtk_wait_link_state() as static functon.

Warning:
>> drivers/scsi/ufs/ufs-mediatek.c:181:5: warning: no previous prototype
>> for 'ufs_mtk_wait_link_state' [-Wmissing-prototypes]

Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
---
 drivers/scsi/ufs/ufs-mediatek.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 9a4432c9f7dc..ad929235c193 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -185,8 +185,8 @@ static void ufs_mtk_setup_ref_clk_wait_us(struct ufs_hba *hba,
 	host->ref_clk_ungating_wait_us = ungating_us;
 }
 
-int ufs_mtk_wait_link_state(struct ufs_hba *hba, u32 state,
-			    unsigned long max_wait_ms)
+static int ufs_mtk_wait_link_state(struct ufs_hba *hba, u32 state,
+				   unsigned long max_wait_ms)
 {
 	ktime_t timeout, time_checked;
 	u32 val;
-- 
2.18.0