[PATCH] spi: spi-mtk-nor: make mtk_nor_exec_op() statuc

[Jason Yan]

Fix the following sparse warning:

drivers/spi/spi-mtk-nor.c:394:5: warning: symbol 'mtk_nor_exec_op' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Jason Yan <yanaijie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200409085009.44971-1-yanaijie@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 drivers/spi/spi-mtk-nor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c
index c15a9910549f..7bc302b50396 100644
--- a/drivers/spi/spi-mtk-nor.c
+++ b/drivers/spi/spi-mtk-nor.c
@@ -391,7 +391,7 @@ static int mtk_nor_pp_unbuffered(struct mtk_nor *sp,
 	return mtk_nor_cmd_exec(sp, MTK_NOR_CMD_WRITE, 6 * BITS_PER_BYTE);
 }
 
-int mtk_nor_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
+static int mtk_nor_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 {
 	struct mtk_nor *sp = spi_controller_get_devdata(mem->spi->master);
 	int ret;
-- 
2.20.1