From 86dd9696d3a1acb036d65909d93d73455b8aed3a Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Tue, 19 Feb 2008 14:54:17 +0200 Subject: Revert ubi-tools changes Restore ubi tools to their "original" state, which means to the state they were before I stareted cleaning them up. Instead, create a "new-utils" subdirectory and move my work there. Signed-off-by: Artem Bityutskiy --- ubi-utils/src/crc32.h | 47 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 32 insertions(+), 15 deletions(-) (limited to 'ubi-utils/src/crc32.h') diff --git a/ubi-utils/src/crc32.h b/ubi-utils/src/crc32.h index ee3145b..31362b0 100644 --- a/ubi-utils/src/crc32.h +++ b/ubi-utils/src/crc32.h @@ -1,19 +1,36 @@ -#ifndef CRC32_H -#define CRC32_H +#ifndef __CRC32_H__ +#define __CRC32_H__ +/* + * Copyright (c) International Business Machines Corp., 2006 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +/* + * Author: Thomas Gleixner + * + * CRC32 functions + * + * Can be compiled as seperate object, but is included into the ipl source + * so gcc can inline the functions. We optimize for size so the omission of + * the function frame is helpful. + * + */ #include -extern const uint32_t crc32_table[256]; +void init_crc32_table(uint32_t *table); +uint32_t clc_crc32(uint32_t *table, uint32_t crc, void *buf, int len); -/* Return a 32-bit CRC of the contents of the buffer. */ - - static inline uint32_t -crc32(uint32_t val, const void *ss, int len) -{ - const unsigned char *s = ss; - while (--len >= 0) - val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8); - return val; -} - -#endif +#endif /* __CRC32_H__ */ -- cgit v1.2.3