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-badge4_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-common.S:284: undefined reference to `sys_getcpu_cache'

vim +284 arch/arm/kernel/entry-common.S

^1da177e4 Linus Torvalds 2005-04-16  278  	b	ret_slow_syscall
^1da177e4 Linus Torvalds 2005-04-16  279  
3302caddf Russell King   2015-08-20  280  __sys_trace_return_nosave:
e0aa3a665 Russell King   2015-08-20  281  	enable_irq_notrace
3302caddf Russell King   2015-08-20  282  	mov	r0, sp
3302caddf Russell King   2015-08-20  283  	bl	syscall_trace_exit
3302caddf Russell King   2015-08-20 @284  	b	ret_slow_syscall
3302caddf Russell King   2015-08-20  285  
^1da177e4 Linus Torvalds 2005-04-16  286  	.align	5
^1da177e4 Linus Torvalds 2005-04-16  287  #ifdef CONFIG_ALIGNMENT_TRAP

:::::: The code at line 284 was first introduced by commit
:::::: 3302caddf10ad50710dbb7a94ccbdb3ad5bf1412 ARM: entry: efficiency cleanups

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

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