Hi Anson,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8632e9b5645bbc2331d21d892b0d6961c1a08429
commit: a9f85f93ed735ebdacdaeb9652844b74c94c8c9c firmware: imx: add COMPILE_TEST support
date:   4 weeks ago
config: i386-randconfig-g003-20200415 (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        git checkout a9f85f93ed735ebdacdaeb9652844b74c94c8c9c
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All errors (new ones prefixed by >>):

   ld: drivers/firmware/imx/scu-pd.o: in function `imx_sc_pd_power':
>> scu-pd.c:(.text+0x70): undefined reference to `imx_scu_call_rpc'
   ld: drivers/firmware/imx/scu-pd.o: in function `imx_sc_pd_probe':
>> scu-pd.c:(.text+0xe8): undefined reference to `imx_scu_get_handle'

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