linux-kernel - Re: [PATCH 0/5] perf inject + say no to __KERNEL_

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Message-ID: <20100503130623.GB23372@elte.hu>
Date:	Mon, 3 May 2010 15:06:23 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Fr??d??ric Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Tom Zanussi <tzanussi@...il.com>
Subject: Re: [PATCH 0/5] perf inject + say no to __KERNEL__ only stuff


* Borislav Petkov <bp@...en8.de> wrote:

> From: Ingo Molnar <mingo@...e.hu>
> Date: Mon, May 03, 2010 at 09:37:49AM +0200
> 
> > It broke half of the non-x86 architectures. For example on Sparc defconfig:
> > 
> > In file included from /home/mingo/tip/include/asm-generic/bitops/hweight.h:4,
> >                  from /home/mingo/tip/arch/sparc/include/asm/bitops_32.h:103,
> >                  from /home/mingo/tip/arch/sparc/include/asm/bitops.h:6,
> >                  from /home/mingo/tip/include/linux/bitops.h:17,
> >                  from /home/mingo/tip/include/linux/kernel.h:15,
> >                  from /home/mingo/tip/include/linux/sched.h:54,
> >                  from /home/mingo/tip/arch/sparc/kernel/asm-offsets.c:13:
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h: In function '__arch_hweight32':
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h:8: error: implicit declaration of function '__sw_hweight32'
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h: In function '__arch_hweight16':
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h:13: error: implicit declaration of function '__sw_hweight16'
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h: In function '__arch_hweight8':
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h:18: error: implicit declaration of function '__sw_hweight8'
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h: In function '__arch_hweight64':
> > /home/mingo/tip/include/asm-generic/bitops/arch_hweight.h:23: error: implicit declaration of function '__sw_hweight64'
> > 
> > (the failure on other architectures looks similar)
> 
> Looks like we're missing the __sw_hweightXX prototype definitions in
> that include maze. Ingo, which -tip branch is that and can you put it
> somewhere for me to test?

it's tip:core/hweight. You should be able to do 'git checkout 
tip/core/hweight' if you have -tip as a remote repository.

It's not merged into tip:master at the moment, but you can do it yourself via:

	git merge tip/core/hweight

to get the tree i tested.

Thanks,

	Ingo
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