tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/module
head:   97417ccc5aef1e066349f4e7999417c5393921ca
commit: 37b1daffb29b13e9d9b7ce71e318f69a8faec924 [3/5] x86,module: Detect VMX vs SLD conflicts
config: um-defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=37b1daffb29b13e9d9b7ce71e318f69a8faec924
        git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue x86/module
        git checkout 37b1daffb29b13e9d9b7ce71e318f69a8faec924
        # save the attached .config to linux build tree
        make W=1 ARCH=um 

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 >>):

   /usr/bin/ld: arch/x86/um/../kernel/module.o: in function `decode_module':
>> module.c:(.text+0x26): undefined reference to `split_lock_enabled'
>> /usr/bin/ld: module.c:(.text+0x39): undefined reference to `insn_init'
>> /usr/bin/ld: module.c:(.text+0x6b): undefined reference to `insn_get_length'
>> /usr/bin/ld: module.c:(.text+0x162): undefined reference to `insn_get_prefixes'
   collect2: error: ld returned 1 exit status

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