From 56a6b1eb7bfb5ace0b5cb9c149f502fbd101b8ab Mon Sep 17 00:00:00 2001 From: Alexander van Heukelum Date: Sat, 15 Mar 2008 18:31:49 +0100 Subject: generic: implement __fls on all 64-bit archs Implement __fls on all 64-bit archs: alpha has an implementation of fls64. Added __fls(x) = fls64(x) - 1. ia64 has fls, but not __fls. Added __fls based on code of fls. mips and powerpc have __ilog2, which is the same as __fls. Added __fls = __ilog2. parisc, s390, sh and sparc64: Include generic __fls. x86_64 already has __fls. Signed-off-by: Alexander van Heukelum Signed-off-by: Ingo Molnar --- include/asm-alpha/bitops.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/asm-alpha') diff --git a/include/asm-alpha/bitops.h b/include/asm-alpha/bitops.h index 9e19a704d484..15f3ae25c511 100644 --- a/include/asm-alpha/bitops.h +++ b/include/asm-alpha/bitops.h @@ -388,6 +388,11 @@ static inline int fls64(unsigned long x) } #endif +static inline unsigned long __fls(unsigned long x) +{ + return fls64(x) - 1; +} + static inline int fls(int x) { return fls64((unsigned int) x); -- cgit v1.2.3