linux-kernel - Re: [PATCH v4 3/5] getcpu_cache: wire up ARM system call

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Message-ID: <201602240819.MiLGeUzU%fengguang.wu@intel.com>
Date:	Wed, 24 Feb 2016 08:54:05 +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 3/5] getcpu_cache: wire up ARM system call

Hi Mathieu,

[auto build test ERROR on tip/x86/core]
[also build test ERROR on v4.5-rc5]
[cannot apply to 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-system-call-for-4-6/20160224-073424
config: arm-at91_dt_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/entry-common.S: Assembler messages:
>> arch/arm/kernel/entry-common.S:132: Error: __NR_syscalls is not equal to the size of the syscall table

vim +132 arch/arm/kernel/entry-common.S

9fff2fa0 Al Viro         2012-10-10  116  	movne	r0, r4
14327c66 Russell King    2015-04-21  117  	badrne	lr, 1f
6ebbf2ce Russell King    2014-06-30  118  	retne	r5
68687c84 Russell King    2012-10-15  119  1:	get_thread_info tsk
^1da177e Linus Torvalds  2005-04-16  120  	b	ret_slow_syscall
93ed3970 Catalin Marinas 2008-08-28  121  ENDPROC(ret_from_fork)
^1da177e Linus Torvalds  2005-04-16  122  
fa1b4f91 Al Viro         2006-01-19  123  	.equ NR_syscalls,0
fa1b4f91 Al Viro         2006-01-19  124  #define CALL(x) .equ NR_syscalls,NR_syscalls+1
^1da177e Linus Torvalds  2005-04-16  125  #include "calls.S"
1f66e06f Wade Farnsworth 2012-09-07  126  
1f66e06f Wade Farnsworth 2012-09-07  127  /*
1f66e06f Wade Farnsworth 2012-09-07  128   * Ensure that the system call table is equal to __NR_syscalls,
1f66e06f Wade Farnsworth 2012-09-07  129   * which is the value the rest of the system sees
1f66e06f Wade Farnsworth 2012-09-07  130   */
1f66e06f Wade Farnsworth 2012-09-07  131  .ifne NR_syscalls - __NR_syscalls
1f66e06f Wade Farnsworth 2012-09-07 @132  .error "__NR_syscalls is not equal to the size of the syscall table"
1f66e06f Wade Farnsworth 2012-09-07  133  .endif
1f66e06f Wade Farnsworth 2012-09-07  134  
fa1b4f91 Al Viro         2006-01-19  135  #undef CALL
fa1b4f91 Al Viro         2006-01-19  136  #define CALL(x) .long x
^1da177e Linus Torvalds  2005-04-16  137  
^1da177e Linus Torvalds  2005-04-16  138  /*=============================================================================
^1da177e Linus Torvalds  2005-04-16  139   * SWI handler
^1da177e Linus Torvalds  2005-04-16  140   *-----------------------------------------------------------------------------

:::::: The code at line 132 was first introduced by commit
:::::: 1f66e06fb6414732bef7bf4a071ef76a837badec ARM: 7524/1: support syscall tracing

:::::: TO: Wade Farnsworth <wade_farnsworth@...tor.com>
:::::: CC: Russell King <rmk+kernel@....linux.org.uk>

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