Hi Jonathan,

I love your patch! Yet something to improve:

[auto build test ERROR on efi/next]
[cannot apply to v5.4-rc7 next-20191112]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Jonathan-Cameron/efi-ras-CCIX-Memory-error-reporting/20191113-133322
base:   https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next
config: i386-defconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All errors (new ones prefixed by >>):

   ld: drivers/ras/ras.o: in function `perf_trace_ccix_memory_error_event':
>> ras.c:(.text+0x794): undefined reference to `cper_ccix_mem_err_pack'
   ld: drivers/ras/ras.o: in function `trace_raw_output_ccix_memory_error_event':
>> ras.c:(.text+0x83d): undefined reference to `cper_ccix_mem_err_unpack'
>> ld: ras.c:(.text+0x863): undefined reference to `cper_ccix_comp_type_str'
>> ld: ras.c:(.text+0x86f): undefined reference to `cper_severity_str'
   ld: drivers/ras/ras.o: in function `trace_event_raw_event_ccix_memory_error_event':
   ras.c:(.text+0x10e9): undefined reference to `cper_ccix_mem_err_pack'

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