Hi "André,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on linus/master v5.13-rc4]
[cannot apply to tip/locking/core tip/x86/asm next-20210603]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Andr-Almeida/Add-futex2-syscalls/20210604-040253
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm-zeus_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/0d97dd96e50eedfb960644c316285cf5fa121d1e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andr-Almeida/Add-futex2-syscalls/20210604-040253
        git checkout 0d97dd96e50eedfb960644c316285cf5fa121d1e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: kernel/futex2.o: in function `futex_get_user':
>> futex2.c:(.text+0xec): undefined reference to `__get_user_bad'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org