Re: [PATCH v3] powerpc: Export thread_struct.used_vr/used_vsr to user space

Hi,

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.7-rc6 next-20160706]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/wei-guo-simon-gmail-com/powerpc-Export-thread_struct-used_vr-used_vsr-to-user-space/20160707-103044
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
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=powerpc 

All errors (new ones prefixed by >>):

   arch/powerpc/kernel/built-in.o: In function `arch_ptrace':

quoted

(.text+0xad4): undefined reference to `__get_user_bad'

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation