Hi "Ronald,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on input/next]
[also build test ERROR on v5.11 next-20210217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Ronald-Tschal-r/Input-applespi-Don-t-wait-for-responses-to-commands-indefinitely/20210218-032205
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: ia64-allyesconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/838cd23e96675132bdd30878d1b24a59b8a534e1
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ronald-Tschal-r/Input-applespi-Don-t-wait-for-responses-to-commands-indefinitely/20210218-032205
        git checkout 838cd23e96675132bdd30878d1b24a59b8a534e1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 

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 >>):

   ia64-linux-ld: drivers/input/keyboard/applespi.o: in function `applespi_probe':
>> applespi.c:(.text+0xf22): undefined reference to `trace_set_clr_event'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FRAME_POINTER
   Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS
   Selected by
   - FAULT_INJECTION_STACKTRACE_FILTER && FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT && !X86_64 && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86

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