Hi Helge,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   60eac8672b5b6061ec07499c0f1b79f6d94311ce
commit: 9e4e2ce1a78ed92ed91135e90c85f27d75388129 [2035/3509] parisc/serial: Rename 8250_gsc.c to 8250_parisc.c
config: parisc-randconfig-s031-20221026
compiler: hppa64-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=9e4e2ce1a78ed92ed91135e90c85f27d75388129
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 9e4e2ce1a78ed92ed91135e90c85f27d75388129
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "iosapic_serial_irq" [drivers/tty/serial/8250/8250_parisc.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp