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Re: [patch V3] lib: GCD: add binary GCD algorithm

From Sam Ravnborg <sam@ravnborg.org>
Newsgroups linux.kernel
Subject Re: [patch V3] lib: GCD: add binary GCD algorithm
Date 2016-04-28 22:00 +0200
Message-ID <rt0gr-1fw-9@gated-at.bofh.it> (permalink)
References <rsSLU-2rx-3@gated-at.bofh.it> <rsXLA-7xX-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> __ffs on the available architectures:
> 	Alpha: sometimes (CONFIG_ALPHA_EV6, CONFIG_ALPHA_EV67)
> 	ARC: sometimes (!CONFIG_ISA_ARCOMPACT)
> 	ARM: sometimes (V5+)
> 	ARM64: NO, could be written using RBIT and CLZ
> 	AVR: yes
> 	Blackfin: NO, could be written using hweight()
> 	C6x: yes
> 	CRIS: NO
> 	FR-V: yes
> 	H8300: NO
> 	Hexagon: yes
> 	IA64: yes
> 	M32R: NO
> 	M68k: sometimes
> 	MetaG: NO
> 	Microblaze: NO
> 	MIPS: sometimes
> 	MN10300: yes
> 	OpenRISC: NO
> 	PA-RISC: NO?  Interesting code, but I think it's a net loss.
> 	PowerPC: yes
> 	S390: sometimes (CONFIG_HAVE_MARCH_Z9_109_FEATURES)
> 	Score: NO
> 	SH: NO
> 	SPARC: NO
SPARC: sparc64: YES, sparc32: NO
Patch needs to be updated to refelct this.

	Sam

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[patch V3] lib: GCD: add binary GCD algorithm zengzhaoxiu@163.com - 2016-04-28 14:00 +0200
  Re: [patch V3] lib: GCD: add binary GCD algorithm Josh Juran <jjuran@gmail.com> - 2016-04-28 19:20 +0200
  Re: [patch V3] lib: GCD: add binary GCD algorithm "George Spelvin" <linux@horizon.com> - 2016-04-28 19:20 +0200
    Re: [patch V3] lib: GCD: add binary GCD algorithm Geert Uytterhoeven <geert@linux-m68k.org> - 2016-04-28 20:00 +0200
      Re: [patch V3] lib: GCD: add binary GCD algorithm Rich Felker <dalias@libc.org> - 2016-04-28 20:10 +0200
        Re: [patch V3] lib: GCD: add binary GCD algorithm Geert Uytterhoeven <geert@linux-m68k.org> - 2016-04-28 20:20 +0200
        Re: [patch V3] lib: GCD: add binary GCD algorithm "George Spelvin" <linux@horizon.com> - 2016-04-28 21:20 +0200
    Re: [patch V3] lib: GCD: add binary GCD algorithm Sam Ravnborg <sam@ravnborg.org> - 2016-04-28 22:00 +0200
  Re: [patch V3] lib: GCD: add binary GCD algorithm James Bottomley <James.Bottomley@HansenPartnership.com> - 2016-04-28 19:30 +0200

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