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[PATCH] m32r: Use asm-generic/div64.h 

The current include/asm-m32r/div64.h of 2.6.12-rc5 looks buggy.  Here is a
patch for updating it to use asm-generic/div64.h for m32r like other
architectures.

Signed-off-by: Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hirokazu Takata 2005-06-21 17:16:17 -07:00 committed by Linus Torvalds
parent 960c2a89a0
commit 5757b284a3
1 changed files with 1 additions and 38 deletions
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39
include/asm-m32r/div64.h
View File

@ -1,38 +1 @@
#ifndef _ASM_M32R_DIV64
#define _ASM_M32R_DIV64
/* $Id$ */
/* unsigned long long division.
* Input:
* unsigned long long n
* unsigned long base
* Output:
* n = n / base;
* return value = n % base;
*/
#define do_div(n, base) \
({ \
unsigned long _res, _high, _mid, _low; \
\
_low = (n) & 0xffffffffUL; \
_high = (n) >> 32; \
if (_high) { \
_mid = (_high % (unsigned long)(base)) << 16; \
_high = _high / (unsigned long)(base); \
_mid += _low >> 16; \
_low &= 0x0000ffffUL; \
_low += (_mid % (unsigned long)(base)) << 16; \
_mid = _mid / (unsigned long)(base); \
_res = _low % (unsigned long)(base); \
_low = _low / (unsigned long)(base); \
n = _low + ((long long)_mid << 16) + \
((long long)_high << 32); \
} else { \
_res = _low % (unsigned long)(base); \
n = (_low / (unsigned long)(base)); \
} \
_res; \
})
#endif /* _ASM_M32R_DIV64 */
#include <asm-generic/div64.h>