Hi Brendan,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a96bfed64c8986d6404e553f18203cae1f5ac7e6
commit: 981f94c3e92146705baf97fb417a5ed1ab1a79a5 bpf: Add bitwise atomic instructions
date:   5 months ago
config: m68k-randconfig-r013-20210622 (attached as .config)
compiler: m68k-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=981f94c3e92146705baf97fb417a5ed1ab1a79a5
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 981f94c3e92146705baf97fb417a5ed1ab1a79a5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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 >>):

   kernel/bpf/core.c:1350:12: warning: no previous prototype for 'bpf_probe_read_kernel' [-Wmissing-prototypes]
    1350 | u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr)
         |            ^~~~~~~~~~~~~~~~~~~~~
   kernel/bpf/core.c:1751:6: warning: no previous prototype for 'bpf_patch_call_args' [-Wmissing-prototypes]
    1751 | void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth)
         |      ^~~~~~~~~~~~~~~~~~~
   {standard input}: Assembler messages:
>> {standard input}:4140: Error: operands mismatch -- statement `eorl 44(%sp),%d7' ignored

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for ATARI_KBD_CORE
   Depends on !UML && INPUT && INPUT_KEYBOARD
   Selected by
   - MOUSE_ATARI && !UML && INPUT && INPUT_MOUSE && ATARI

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