Hi Dmitry,

I love your patch! Yet something to improve:

[auto build test ERROR on tegra/for-next]
[also build test ERROR on next-20210615]
[cannot apply to pm/linux-next daniel.lezcano/clockevents/next v5.13-rc6]
[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/Dmitry-Osipenko/Compile-test-NVIDIA-Tegra-CPUIDLE-driver/20210607-063217
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next
config: arm-randconfig-r005-20210616 (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/53a9ab1dfd605ffae44d67f01a07a18b8ecbb1be
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Dmitry-Osipenko/Compile-test-NVIDIA-Tegra-CPUIDLE-driver/20210607-063217
        git checkout 53a9ab1dfd605ffae44d67f01a07a18b8ecbb1be
        # 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: arch/arm/kernel/sleep.o: in function `__cpu_suspend':
>> (.text+0x68): undefined reference to `cpu_sa110_suspend_size'
   arm-linux-gnueabi-ld: arch/arm/kernel/suspend.o: in function `__cpu_suspend_save':
>> suspend.c:(.text+0x118): undefined reference to `cpu_sa110_do_suspend'
>> arm-linux-gnueabi-ld: suspend.c:(.text+0x13c): undefined reference to `cpu_sa110_do_resume'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for ARM_CPU_SUSPEND
   Depends on ARCH_SUSPEND_POSSIBLE
   Selected by
   - ARM_TEGRA_CPUIDLE && CPU_IDLE && (ARM || ARM64) && (ARCH_TEGRA || COMPILE_TEST && !ARM64

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