[patch 11/47] generic fls64()
Akinobu Mita <[email protected]>
| Newsgroups | gmane.linux.ports.sparc,gmane.linux.kernel,gmane.linux.ports.ia64,gmane.linux.ports.hppa,gmane.linux.ports.ppc.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.ultrapenguin |
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| Message-ID | <[email protected]> |
fls64.patch
(application/octet-stream, 948 B)
This patch introduces the C-language equivalent of the function: int fls64(__u64 x); In include/asm-generic/bitops/fls64.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <[email protected]> include/asm-generic/bitops/fls64.h | 12 ++++++++++++ 1 files changed, 12 insertions(+) Index: 2.6-rc/include/asm-generic/bitops/fls64.h =================================================================== --- /dev/null +++ 2.6-rc/include/asm-generic/bitops/fls64.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FLS64_H_ +#define _ASM_GENERIC_BITOPS_FLS64_H_ + +static inline int fls64(__u64 x) +{ + __u32 h = x >> 32; + if (h) + return fls(h) + 32; + return fls(x); +} + +#endif /* _ASM_GENERIC_BITOPS_FLS64_H_ */ -- - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html