3 Commits

Author	SHA1	Message	Date
Peter Zijlstra	1527bc8b92	bitops: Optimize hweight() by making use of compile-time evaluation ... Rename the extisting runtime hweight() implementations to __arch_hweight(), rename the compile-time versions to __const_hweight() and then have hweight() pick between them. Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100318111929.GB11152@aftab> Acked-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <1265028224.24455.154.camel@laptop> Signed-off-by: H. Peter Anvin <hpa@zytor.com>	2010-04-06 15:52:11 -07:00
Akinobu Mita	a54baa1487	[PATCH] fix error: __u32 undeclared ... Build fix for s390 declare __u32 and __u64. Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	2006-03-26 08:57:11 -08:00
Akinobu Mita	3b9ed1a5d2	[PATCH] bitops: generic hweight{64,32,16,8}() ... This patch introduces the C-language equivalents of the functions below: unsigned int hweight32(unsigned int w); unsigned int hweight16(unsigned int w); unsigned int hweight8(unsigned int w); unsigned long hweight64(__u64 w); In include/asm-generic/bitops/hweight.h This code largely copied from: include/linux/bitops.h Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>	2006-03-26 08:57:11 -08:00