mtd: nand: remove unused function input parameter

The nand_get_flash_type parameter "busw" input value is not used by any
branch, and it is updated before use it in the function, so remove it,
define the "busw" as an internal variable.

Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 62e5d26464f044d03ff33386d5845739348e6554..71c5c7a7705322048b9a1f6d3783410ecac3cfef 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3549,10 +3549,10 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
  */
 static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                                                  struct nand_chip *chip,
-                                                 int busw,
                                                  int *maf_id, int *dev_id,
                                                  struct nand_flash_dev *type)
 {
+       int busw;
        int i, maf_idx;
        u8 id_data[8];
 
@@ -3722,18 +3722,16 @@ ident_done:
 int nand_scan_ident(struct mtd_info *mtd, int maxchips,
                    struct nand_flash_dev *table)
 {
-       int i, busw, nand_maf_id, nand_dev_id;
+       int i, nand_maf_id, nand_dev_id;
        struct nand_chip *chip = mtd->priv;
        struct nand_flash_dev *type;
 
-       /* Get buswidth to select the correct functions */
-       busw = chip->options & NAND_BUSWIDTH_16;
        /* Set the default functions */
-       nand_set_defaults(chip, busw);
+       nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16);
 
        /* Read the flash type */
-       type = nand_get_flash_type(mtd, chip, busw,
-                               &nand_maf_id, &nand_dev_id, table);
+       type = nand_get_flash_type(mtd, chip, &nand_maf_id,
+                                  &nand_dev_id, table);
 
        if (IS_ERR(type)) {
                if (!(chip->options & NAND_SCAN_SILENT_NODEV))