[kbuild-all] [dhowells-fs:rxrpc-rxgk 17/17] ERROR: modpost: "rxgk_test_decode_ticket" undefined!

tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git rxrpc-rxgk head: 587caf020a85547c72e7e578382360f01bc7690b commit: 587caf020a85547c72e7e578382360f01bc7690b [17/17] rxrpc: Implement the yfs-rxgk transport class (security index 6) config: x86_64-randconfig-s022-20200917 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-201-g24bdaac6-dirty git checkout 587caf020a85547c72e7e578382360f01bc7690b # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org