[zen-kernel-zen-kernel:5.12/futex2 13/16] fork.c:(.text.mm_release+0x74): undefined reference to `ksys_futex_wake'

[kernel test robot <lkp@intel.com>]

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Hi André,

FYI, the error/warning still remains.

tree:   https://github.com/zen-kernel/zen-kernel 5.12/futex2
head:   81255c11c48cc2302883425c87318f9cad37e7e6
commit: 74b2323f995135be08649b48df710e78efcf7f62 [13/16] kernel: Enable waitpid() for futex2
config: mips-randconfig-r025-20210615 (attached as .config)
compiler: mipsel-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/zen-kernel/zen-kernel/commit/74b2323f995135be08649b48df710e78efcf7f62
        git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen-kernel-zen-kernel 5.12/futex2
        git checkout 74b2323f995135be08649b48df710e78efcf7f62
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

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 >>):

   mipsel-linux-ld: kernel/fork.o: in function `mm_release':
>> fork.c:(.text.mm_release+0x74): undefined reference to `ksys_futex_wake'

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

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