Hi Calvin,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Calvin-Johnson/ACPI-support-for-dpaa2-driver/20201001-000801
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 879456bedbe54f2d38b15c21dc5e3c30232b53e1
config: x86_64-randconfig-a016-20200930 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/6e5127ac074bf64c940207f35e710562cf6e18ff
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Calvin-Johnson/ACPI-support-for-dpaa2-driver/20201001-000801
        git checkout 6e5127ac074bf64c940207f35e710562cf6e18ff
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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 >>, old ones prefixed by <<):

>> ERROR: modpost: "phy_device_create" [drivers/net/phy/mdio-bus.ko] undefined!
ERROR: modpost: "rcu_idle_enter" [drivers/acpi/processor.ko] undefined!
ERROR: modpost: "rcu_idle_exit" [drivers/acpi/processor.ko] undefined!

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