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| author | Al Viro <viro@ZenIV.linux.org.uk> | 2014-12-19 06:51:26 +0000 |
|---|---|---|
| committer | Dave Kleikamp <dave.kleikamp@oracle.com> | 2014-12-23 17:01:24 -0600 |
| commit | e1f1fe798d2f2eab904624125ba924d08205f960 (patch) | |
| tree | 7da293aa0c88034b38b03afeb7e46823a7f87751 /fs/jfs/endian24.h | |
| parent | 53262d12d1658669029ab39a63e3d314108abe66 (diff) | |
| download | op-kernel-dev-e1f1fe798d2f2eab904624125ba924d08205f960.zip op-kernel-dev-e1f1fe798d2f2eab904624125ba924d08205f960.tar.gz | |
jfs: get rid of homegrown endianness helpers
Get rid of le24 stuff, along with the bitfields use - all that stuff
can be done with standard stuff, in sparse-verifiable manner. Moreover,
that way (shift-and-mask) often generates better code - gcc optimizer
sucks on bitfields...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
----
Diffstat (limited to 'fs/jfs/endian24.h')
| -rw-r--r-- | fs/jfs/endian24.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/fs/jfs/endian24.h b/fs/jfs/endian24.h deleted file mode 100644 index fa92f7f1..0000000 --- a/fs/jfs/endian24.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) International Business Machines Corp., 2001 - * - * 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) | \ - (__x & (__u32)0x0000ff00UL) | \ - ((__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 */ |
