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kernel/kfifo.c: replace conditional test with is_power_of_2()

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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Robert P. J. Day 2009-06-16 15:33:34 -07:00 committed by Linus Torvalds
parent 417dcdf99e
commit b33112d1cc
1 changed files with 2 additions and 2 deletions
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4
kernel/kfifo.c
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@ -72,9 +72,9 @@ struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, spinlock_t *lock)
/*
* round up to the next power of 2, since our 'let the indices
* wrap' tachnique works only in this case.
* wrap' technique works only in this case.
*/
if (size & (size - 1)) {
if (!is_power_of_2(size)) {
BUG_ON(size > 0x80000000);
size = roundup_pow_of_two(size);
}