Patchwork [5/9] mtd: sh_flctl: Simplify the hardware ecc page read/write

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Submitter Bastian Hecht
Date April 20, 2012, 9:13 a.m.
Message ID <1334913230-23615-6-git-send-email-hechtb@gmail.com>
Download mbox | patch
Permalink /patch/153979/
State New
Headers show

Comments

Bastian Hecht - April 20, 2012, 9:13 a.m.
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>
---
 drivers/mtd/nand/sh_flctl.c |   25 ++-----------------------
 1 files changed, 2 insertions(+), 23 deletions(-)

Patch

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index c16479c..8e56f87 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 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;
-	}
-
+	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 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)