[PATCH -next] mtd: rawnand: stm32_fmc2: Make some functions static

[YueHaibing]

Fixes the following sparse warning:
drivers/mtd/nand/raw/stm32_fmc2_nand.c:1228:6: warning: symbol 'stm32_fmc2_read_data' was not declared. Should it be static?
drivers/mtd/nand/raw/stm32_fmc2_nand.c:1275:6: warning: symbol 'stm32_fmc2_write_data' was not declared. Should it be static?
drivers/mtd/nand/raw/stm32_fmc2_nand.c:1707:32: warning: symbol 'stm32_fmc2_nand_ooblayout_ops' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/mtd/nand/raw/stm32_fmc2_nand.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index e057282..999ca6a 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -1225,8 +1225,8 @@ static irqreturn_t stm32_fmc2_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-void stm32_fmc2_read_data(struct nand_chip *chip, void *buf,
-			  unsigned int len, bool force_8bit)
+static void stm32_fmc2_read_data(struct nand_chip *chip, void *buf,
+				 unsigned int len, bool force_8bit)
 {
 	struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
 	void __iomem *io_addr_r = fmc2->data_base[fmc2->cs_sel];
@@ -1272,8 +1272,8 @@ void stm32_fmc2_read_data(struct nand_chip *chip, void *buf,
 		stm32_fmc2_set_buswidth_16(fmc2, true);
 }
 
-void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf,
-			   unsigned int len, bool force_8bit)
+static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf,
+				  unsigned int len, bool force_8bit)
 {
 	struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
 	void __iomem *io_addr_w = fmc2->data_base[fmc2->cs_sel];
@@ -1704,7 +1704,7 @@ static int stm32_fmc2_nand_ooblayout_free(struct mtd_info *mtd, int section,
 	return 0;
 }
 
-const struct mtd_ooblayout_ops stm32_fmc2_nand_ooblayout_ops = {
+static const struct mtd_ooblayout_ops stm32_fmc2_nand_ooblayout_ops = {
 	.ecc = stm32_fmc2_nand_ooblayout_ecc,
 	.free = stm32_fmc2_nand_ooblayout_free,
 };
-- 
2.7.0