[RFC PATCH] mtd: spi-nor: rockchip_sfc_runtime_suspend() can be static

[kbuild test robot]

Fixes: dbc2d867929a ("mtd: spi-nor: add rockchip serial flash controller driver")
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 rockchip-sfc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/rockchip-sfc.c b/drivers/mtd/spi-nor/rockchip-sfc.c
index 60371011..e38d79d 100644
--- a/drivers/mtd/spi-nor/rockchip-sfc.c
+++ b/drivers/mtd/spi-nor/rockchip-sfc.c
@@ -896,7 +896,7 @@ static int rockchip_sfc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-int rockchip_sfc_runtime_suspend(struct device *dev)
+static int rockchip_sfc_runtime_suspend(struct device *dev)
 {
 	struct rockchip_sfc *sfc = dev_get_drvdata(dev);
 
@@ -904,7 +904,7 @@ int rockchip_sfc_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-int rockchip_sfc_runtime_resume(struct device *dev)
+static int rockchip_sfc_runtime_resume(struct device *dev)
 {
 	struct rockchip_sfc *sfc = dev_get_drvdata(dev);