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

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=50ed399cc3fbe5e16de78f7b62a39b8280f9001b
Commit:     50ed399cc3fbe5e16de78f7b62a39b8280f9001b
Parent:     ef4ce0bcb3c91375d2bdefd7a0e2fead95c97620
Author:     Bastian Hecht <hechtb at googlemail.com>
AuthorDate: Mon May 14 14:14:44 2012 +0200
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Fri Jul 6 18:17:03 2012 +0100

    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 at gmail.com>
    Signed-off-by: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/nand/sh_flctl.c |   25 ++-----------------------
 1 files changed, 2 insertions(+), 23 deletions(-)

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 8633b5b..1cc19eb 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)