tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5fc6b075e165f641fbc366b58b578055762d5f8c
commit: 8d58f222e85f01da0c0e1fc1e77986c86de889e2 ubsan: disable UBSAN_ALIGNMENT under COMPILE_TEST
date:   6 months ago
config: mips-randconfig-r024-20201030 (attached as .config)
compiler: mips64-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=8d58f222e85f01da0c0e1fc1e77986c86de889e2
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 8d58f222e85f01da0c0e1fc1e77986c86de889e2
        # 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 >>, old ones prefixed by <<):

>> ERROR: modpost: "__irq_set_affinity" [drivers/watchdog/octeon-wdt.ko] undefined!
ERROR: modpost: "spurious_interrupt" [drivers/mfd/ioc3.ko] undefined!
ERROR: modpost: "pci_find_host_bridge" [drivers/mfd/ioc3.ko] undefined!

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