linux-kernel - Re: [PATCH v7 0/12] x86: Arbitrary CPU hot(un)plug support

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Message-ID: <5036EC1E.5030804@zytor.com>
Date:	Thu, 23 Aug 2012 19:51:10 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Fenghua Yu <fenghua.yu@...el.com>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Asit K Mallick <asit.k.mallick@...el.com>,
	Tony Luck <tony.luck@...el.com>,
	Arjan Dan De Ven <arjan@...ux.intel.com>,
	Suresh B Siddha <suresh.b.siddha@...el.com>,
	Len Brown <len.brown@...el.com>,
	"Srivatssa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Chen Gong <gong.chen@...ux.intel.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-pm <linux-pm@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v7 0/12] x86: Arbitrary CPU hot(un)plug support

Hi Fenghua,

This patchset breaks compiling with Xen enabled on 64 bits:

/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c: In function 
‘cpu_bringup’:
/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c:75:2: error: too few 
arguments to function ‘smp_store_cpu_info’
In file included from 
/home/hpa/kernel/tip.x86-hotplug/include/linux/smp.h:38:0,
                  from 
/home/hpa/kernel/tip.x86-hotplug/include/linux/sched.h:70,
                  from 
/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c:15:
/home/hpa/kernel/tip.x86-hotplug/arch/x86/include/asm/smp.h:169:6: note: 
declared here
/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c: In function 
‘xen_smp_prepare_cpus’:
/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c:257:2: error: too 
few arguments to function ‘smp_store_cpu_info’
In file included from 
/home/hpa/kernel/tip.x86-hotplug/include/linux/smp.h:38:0,
                  from 
/home/hpa/kernel/tip.x86-hotplug/include/linux/sched.h:70,
                  from 
/home/hpa/kernel/tip.x86-hotplug/arch/x86/xen/smp.c:15:
/home/hpa/kernel/tip.x86-hotplug/arch/x86/include/asm/smp.h:169:6: note: 
declared here
make[4]: *** [arch/x86/xen/smp.o] Error 1
make[3]: *** [arch/x86/xen] Error 2
make[2]: *** [arch/x86] Error 2
make[1]: *** [sub-make] Error 2
make[1]: Leaving directory `/home/hpa/kernel/tip.x86-hotplug'

Could you fix that?

	-hpa

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