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linux_old1/fs/jfs/endian24.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
JFS: White space cleanup Removed trailing spaces & tabs, and spaces preceding tabs. Also a couple very minor comment cleanups. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
2006-10-02 22:55:27 +08:00
* Copyright (C) International Business Machines Corp., 2001
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_ENDIAN24
#define _H_ENDIAN24
/*
* endian24.h:
*
* Endian conversion for 24-byte data
*
*/
#define __swab24(x) \
({ \
__u32 __x = (x); \
((__u32)( \
((__x & (__u32)0x000000ffUL) << 16) | \
JFS: Whitespace cleanup and remove some dead code Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-07 04:28:35 +08:00
(__x & (__u32)0x0000ff00UL) | \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
((__x & (__u32)0x00ff0000UL) >> 16) )); \
})
#if (defined(__KERNEL__) && defined(__LITTLE_ENDIAN)) || (defined(__BYTE_ORDER) && (__BYTE_ORDER == __LITTLE_ENDIAN))
#define __cpu_to_le24(x) ((__u32)(x))
#define __le24_to_cpu(x) ((__u32)(x))
#else
#define __cpu_to_le24(x) __swab24(x)
#define __le24_to_cpu(x) __swab24(x)
#endif
#ifdef __KERNEL__
#define cpu_to_le24 __cpu_to_le24
#define le24_to_cpu __le24_to_cpu
#endif
#endif /* !_H_ENDIAN24 */