mtd: sh_flctl: Simplify the hardware ecc page read/write

As the equation mtd->writesize == eccsteps * eccsize holds, we can
simplify the code. The second loop of the 1st hunk is never entered,
so we delete it.

Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 2 insertions, 23 deletions

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 8633b5b98a13..1cc19eb1c302 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -353,35 +353,14 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
 static int flctl_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                 uint8_t *buf, int oob_required, int page)
 {
-        int i, eccsize = chip->ecc.size;
-        int eccbytes = chip->ecc.bytes;
-        int eccsteps = chip->ecc.steps;
-        uint8_t *p = buf;
-        struct sh_flctl *flctl = mtd_to_flctl(mtd);
-
-        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
-                chip->read_buf(mtd, p, eccsize);
-
-        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
-                if (flctl->hwecc_cant_correct[i])
-                        mtd->ecc_stats.failed++;
-                else
-                        mtd->ecc_stats.corrected += 0; /* FIXME */
-        }
-
+        chip->read_buf(mtd, buf, mtd->writesize);
         return 0;
 }
 
 static void flctl_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                    const uint8_t *buf, int oob_required)
 {
-        int i, eccsize = chip->ecc.size;
-        int eccbytes = chip->ecc.bytes;
-        int eccsteps = chip->ecc.steps;
-        const uint8_t *p = buf;
-
-        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
-                chip->write_buf(mtd, p, eccsize);
+        chip->write_buf(mtd, buf, mtd->writesize);
 }
 
 static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr)