[arm-integrator:kernel-in-vmalloc-v5.18-rc1 20/20] arch/arm64/include/asm/memory.h:311:16: error: implicit declaration of function '__phys_to_pfn'

[arm-integrator:kernel-in-vmalloc-v5.18-rc1 20/20] arch/arm64/include/asm/memory.h:311:16: error: implicit declaration of function '__phys_to_pfn'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git kernel-in-vmalloc-v5.18-rc1
head:   eae5a86aafbe4bfbcb5c21b271073b014626a472
commit: eae5a86aafbe4bfbcb5c21b271073b014626a472 [20/20] arm64: memory: Make virt_to_pfn() a static inline
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220531/202205311221.dNwFCY8b-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.3.0
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/linusw/linux-integrator.git/commit/?id=eae5a86aafbe4bfbcb5c21b271073b014626a472
        git remote add arm-integrator https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git
        git fetch --no-tags arm-integrator kernel-in-vmalloc-v5.18-rc1
        git checkout eae5a86aafbe4bfbcb5c21b271073b014626a472
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm64 prepare

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 >>):

   scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
   scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
   scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
   In file included from arch/arm64/include/asm/thread_info.h:17,
                    from include/linux/thread_info.h:60,
                    from arch/arm64/include/asm/preempt.h:6,
                    from include/linux/preempt.h:78,
                    from include/linux/smp.h:110,
                    from include/linux/lockdep.h:14,
                    from include/linux/mutex.h:17,
                    from include/linux/kernfs.h:11,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/of.h:17,
                    from include/linux/irqdomain.h:35,
                    from include/linux/acpi.h:13,
                    from include/acpi/apei.h:9,
                    from include/acpi/ghes.h:5,
                    from include/linux/arm_sdei.h:8,
                    from arch/arm64/kernel/asm-offsets.c:10:
   arch/arm64/include/asm/memory.h: In function 'virt_to_pfn':
>> arch/arm64/include/asm/memory.h:311:16: error: implicit declaration of function '__phys_to_pfn' [-Werror=implicit-function-declaration]
     311 |         return __phys_to_pfn(__virt_to_phys((unsigned long)(x)));
         |                ^~~~~~~~~~~~~
>> arch/arm64/include/asm/memory.h:311:61: error: 'x' undeclared (first use in this function)
     311 |         return __phys_to_pfn(__virt_to_phys((unsigned long)(x)));
         |                                                             ^
   arch/arm64/include/asm/memory.h:311:61: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors
   make[2]: *** [scripts/Makefile.build:120: arch/arm64/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1194: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/__phys_to_pfn +311 arch/arm64/include/asm/memory.h

   308	
   309	static inline unsigned long virt_to_pfn(const void *p)
   310	{
 > 311		return __phys_to_pfn(__virt_to_phys((unsigned long)(x)));
   312	}
   313	

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