linux-kernel - [arm-integrator:kernel-in-vmalloc-v5.18-rc1 8/16] arch/arm/include/asm/memory.h:333:33: error: 'KERNEL_PFN_OFFSET' undeclared; did you mean 'KERNEL

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Date:   Sat, 21 May 2022 00:29:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [arm-integrator:kernel-in-vmalloc-v5.18-rc1 8/16]
 arch/arm/include/asm/memory.h:333:33: error: 'KERNEL_PFN_OFFSET' undeclared;
 did you mean 'KERNEL_OFFSET'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git kernel-in-vmalloc-v5.18-rc1
head:   b9b1d325d83c15b2e27bfa8635f99a7d20811457
commit: 16d1427dc6f44107571afbf96254956716c9ad1f [8/16] ARM: Compile the kernel into VMALLOC
config: arm-stm32_defconfig (https://download.01.org/0day-ci/archive/20220521/202205210032.d4z7zZwl-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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=16d1427dc6f44107571afbf96254956716c9ad1f
        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 16d1427dc6f44107571afbf96254956716c9ad1f
        # 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=arm prepare

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

All errors (new ones prefixed by >>):

   In file included from arch/arm/include/asm/page.h:163,
                    from arch/arm/include/asm/thread_info.h:14,
                    from include/linux/thread_info.h:60,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/arm/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:78,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rculist.h:11,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from arch/arm/kernel/asm-offsets.c:11:
   arch/arm/include/asm/memory.h: In function 'virt_to_pfn':
>> arch/arm/include/asm/memory.h:333:33: error: 'KERNEL_PFN_OFFSET' undeclared (first use in this function); did you mean 'KERNEL_OFFSET'?
     333 |                                 KERNEL_PFN_OFFSET);
         |                                 ^~~~~~~~~~~~~~~~~
         |                                 KERNEL_OFFSET
   arch/arm/include/asm/memory.h:333:33: note: each undeclared identifier is reported only once for each function it appears in
   make[2]: *** [scripts/Makefile.build:120: arch/arm/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 +333 arch/arm/include/asm/memory.h

   322	
   323	static inline unsigned long virt_to_pfn(const void *p)
   324	{
   325		unsigned long kaddr = (unsigned long)p;
   326		if (!IS_ENABLED(CONFIG_ARM_KERNEL_IN_VMALLOC)) {
   327			return (((kaddr - PAGE_OFFSET) >> PAGE_SHIFT) +
   328				PHYS_PFN_OFFSET);
   329		} else {
   330			if ((kaddr >= KERNEL_OFFSET) &&
   331			    (kaddr < (KERNEL_OFFSET + KERNEL_SECTION_SIZE))) {
   332				return (((kaddr - KERNEL_OFFSET) >> PAGE_SHIFT) +
 > 333					KERNEL_PFN_OFFSET);
   334			} else {
   335				return (((kaddr - PAGE_OFFSET) >> PAGE_SHIFT) +
   336					PHYS_PFN_OFFSET);
   337			}
   338		}
   339	}
   340	

-- 
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