[vgupta-arc:topic-zol-remove 80/187] undefined reference to `arc_debug'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git topic-zol-remove
head:   f2709e461ce51e131e57d07a45a634f3b79b5298
commit: b1afff27a36ab56a6ed1d5933731a360aa896ad3 [80/187] xxx: debug fork/execve
config: riscv-randconfig-r042-20211021 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
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/vgupta/arc.git/commit/?id=b1afff27a36ab56a6ed1d5933731a360aa896ad3
        git remote add vgupta-arc https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git
        git fetch --no-tags vgupta-arc topic-zol-remove
        git checkout b1afff27a36ab56a6ed1d5933731a360aa896ad3
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   riscv64-linux-ld: kernel/fork.o: in function `.L0 ':
   fork.c:(.text+0x1ea6): undefined reference to `arc_debug'
   riscv64-linux-ld: kernel/fork.o: in function `.L584':
   fork.c:(.text+0x2626): undefined reference to `arc_debug'
   riscv64-linux-ld: kernel/kthread.o: in function `kthread_probe_data':
>> (.text+0x16ba): undefined reference to `arc_debug'
   riscv64-linux-ld: fs/exec.o: in function `.L18':
   exec.c:(.text+0x1204): undefined reference to `arc_debug'

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

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