linux-kernel - Re: [PATCH v4 (updated)] getcpu_cache: wire up ARM system call

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Date:	Wed, 24 Feb 2016 14:54:28 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	kbuild-all@...org, Andrew Morton <akpm@...ux-foundation.org>,
	Russell King <linux@....linux.org.uk>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, Paul Turner <pjt@...gle.com>,
	Andrew Hunter <ahh@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andy Lutomirski <luto@...capital.net>,
	Andi Kleen <andi@...stfloor.org>,
	Dave Watson <davejwatson@...com>, Chris Lameter <cl@...ux.com>,
	Ben Maurer <bmaurer@...com>,
	Steven Rostedt <rostedt@...dmis.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Josh Triplett <josh@...htriplett.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH v4 (updated)] getcpu_cache: wire up ARM system call

Hi Mathieu,

[auto build test ERROR on arm/for-next]
[also build test ERROR on v4.5-rc5 next-20160223]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Mathieu-Desnoyers/getcpu_cache-wire-up-ARM-system-call/20160224-090642
base:   http://repo.or.cz/linux-2.6/linux-2.6-arm.git for-next
config: arm-efm32_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   arch/arm/kernel/built-in.o: In function `__sys_trace_return_nosave':
>> arch/arm/kernel/entry-header.S:312: undefined reference to `sys_getcpu_cache'

vim +312 arch/arm/kernel/entry-header.S

a18f3645 Daniel Thompson  2015-01-09  306  	ldmdb	r2, {r0 - lr}^			@ get calling r0 - lr
b86040a5 Catalin Marinas  2009-07-24  307  	.endif
8e4971f2 Anders Grafström 2010-03-15  308  	mov	r0, r0				@ ARMv5T and earlier require a nop
8e4971f2 Anders Grafström 2010-03-15  309  						@ after ldm {}^
a18f3645 Daniel Thompson  2015-01-09  310  	add	sp, sp, #\offset + S_FRAME_SIZE
b86040a5 Catalin Marinas  2009-07-24  311  	movs	pc, lr				@ return & move spsr_svc into cpsr
aa06e5c1 Russell King     2015-08-26 @312  #elif defined(CONFIG_CPU_V7M)
aa06e5c1 Russell King     2015-08-26  313  	@ V7M restore.
aa06e5c1 Russell King     2015-08-26  314  	@ Note that we don't need to do clrex here as clearing the local
aa06e5c1 Russell King     2015-08-26  315  	@ monitor is part of the exception entry and exit sequence.

:::::: The code at line 312 was first introduced by commit
:::::: aa06e5c1f9c2b466712be904cc5b56a813e24cfd ARM: entry: get rid of multiple macro definitions

:::::: TO: Russell King <rmk+kernel@....linux.org.uk>
:::::: CC: Russell King <rmk+kernel@....linux.org.uk>

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