tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   591cd61541b9b95401e17dca24be486e32104cb8
commit: acfbefa61a6c73fb1d6887f67bc917847b8c768c [13179/13707] LoongArch: Add hibernation (ACPI S4) support
config: loongarch-randconfig-r035-20221207
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/next/linux-next.git/commit/?id=acfbefa61a6c73fb1d6887f67bc917847b8c768c
        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 acfbefa61a6c73fb1d6887f67bc917847b8c768c
        # 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: arch/loongarch/kernel/acpi.o:(.data+0x0): undefined reference to `loongarch_acpi_suspend'
   loongarch64-linux-ld: drivers/acpi/sleep.o: in function `acpi_pm_prepare':
>> sleep.c:(.text+0x32c): undefined reference to `loongarch_wakeup_start'
>> loongarch64-linux-ld: sleep.c:(.text+0x330): undefined reference to `loongarch_wakeup_start'
>> loongarch64-linux-ld: sleep.c:(.text+0x330): undefined reference to `loongarch_wakeup_start'

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