redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

[MTD] [NAND] Minor cleanup of nand_ecc.c

Browse source 
Make the standalone stuff a little cleaner, fix some checkpatch warnings.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2008-08-16 11:01:31 +01:00
parent e6cf5df183
commit ccbcd6cba5
1 changed files with 9 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
drivers/mtd/nand/nand_ecc.c
View file

@ -4,15 +4,15 @@
*
* drivers/mtd/nand/nand_ecc.c
*
* Copyright (C) 2008 Koninklijke Philips Electronics NV.
* Author: Frans Meulenbroeks
* Copyright © 2008 Koninklijke Philips Electronics NV.
* Author: Frans Meulenbroeks
*
* Completely replaces the previous ECC implementation which was written by:
* Steven J. Hill (sjhill@realitydiluted.com)
* Thomas Gleixner (tglx@linutronix.de)
*
* Information on how this algorithm works and how it was developed
* can be found in Documentation/nand/ecc.txt
* can be found in Documentation/mtd/nand_ecc.txt
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@ -35,7 +35,7 @@
* e.g. when running the code in a testbed or a benchmark program.
* When STANDALONE is used, the module related macros are commented out
* as well as the linux include files.
* Instead a private definition of mtd_into is given to satisfy the compiler
* Instead a private definition of mtd_info is given to satisfy the compiler
* (the code does not use mtd_info, so the code does not care)
*/
#ifndef STANDALONE
@ -44,10 +44,8 @@
#include <linux/module.h>
#include <linux/mtd/nand_ecc.h>
#else
typedef uint32_t unsigned long
struct mtd_info {
int dummy;
};
#include <stdint.h>
struct mtd_info;
#define EXPORT_SYMBOL(x) /* x */
#define MODULE_LICENSE(x) /* x */
@ -409,7 +407,7 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
/* repeated if statements are slightly more efficient than switch ... */
/* ordered in order of likelihood */
if (nr_bits == 0)
return (0); /* no error */
return 0; /* no error */
if (nr_bits == 11) { /* correctable error */
/*
* rp15/13/11/9/7/5/3/1 indicate which byte is the faulty byte
@ -431,10 +429,10 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
bit_addr = addressbits[b2 >> 2];
/* flip the bit */
buf[byte_addr] ^= (1 << bit_addr);
return (1);
return 1;
}
if (nr_bits == 1)
return (1); /* error in ecc data; no action needed */
return 1; /* error in ecc data; no action needed */
return -1;
}
EXPORT_SYMBOL(nand_correct_data);