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Commit 5c134dad authored by Rusty Russell's avatar Rusty Russell
Browse files

mn10300: define __fls 



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

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 16a20626

include/asm-mn10300/bitops.h

+11 −0
Original line number Diff line number Diff line
@@ -195,6 +195,17 @@ int fls(int x) 
	return (x != 0) ? __ilog2_u32(x) + 1 : 0;

}



/**

 * __fls - find last (most-significant) set bit in a long word

 * @word: the word to search

 *

 * Undefined if no set bit exists, so code should check against 0 first.

 */

static inline unsigned long __fls(unsigned long word)

{

	return __ilog2_u32(word);

}



/**

 * ffs - find first bit set

 * @x: the word to search