Hi Huacai,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d2ec799d1c1be847d6a70704fe586ac4d14265c8
commit: b2d3e3354e2a0d0e912308618ea33d0337f405c3 irqchip: Add LoongArch CPU interrupt controller support
date:   7 weeks ago
config: loongarch-randconfig-r011-20220906
compiler: loongarch64-linux-gcc (GCC) 12.1.0
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=b2d3e3354e2a0d0e912308618ea33d0337f405c3
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b2d3e3354e2a0d0e912308618ea33d0337f405c3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch 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 >>):

   loongarch64-linux-ld: drivers/irqchip/irq-loongarch-cpu.o: in function `eiointc_parse_madt':
>> irq-loongarch-cpu.c:(.init.text+0x10): undefined reference to `eiointc_acpi_init'
   loongarch64-linux-ld: drivers/irqchip/irq-loongson-pch-pic.o: in function `pch_lpc_parse_madt':
   irq-loongson-pch-pic.c:(.init.text+0x14): undefined reference to `pch_lpc_acpi_init'

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