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avr32: define __fls

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Like fls, but can't be handed 0 and returns the bit number.

(I broke this arch in linux-next by using __fls in generic code).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-01-01 10:12:16 +10:30
parent 165ac433fa
commit 96b8d4c19d
1 changed files with 5 additions and 0 deletions
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5
arch/avr32/include/asm/bitops.h
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@ -263,6 +263,11 @@ static inline int fls(unsigned long word)
return 32 - result;
}
static inline int __fls(unsigned long word)
{
return fls(word) - 1;
}
unsigned long find_first_zero_bit(const unsigned long *addr,
unsigned long size);
unsigned long find_next_zero_bit(const unsigned long *addr,