tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   5d562c48a21eeb029a8fd3f18e1b31fd83660474
commit: 649d6b1019a2f243bc3a98cb85902a8ebf74289a [12241/13282] RISC-V: Add arch_crash_save_vmcoreinfo support
config: riscv-randconfig-r014-20221206
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=649d6b1019a2f243bc3a98cb85902a8ebf74289a
        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 649d6b1019a2f243bc3a98cb85902a8ebf74289a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kernel/

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

All error/warnings (new ones prefixed by >>):

                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:743:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           insb(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb'
   #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count)
                                            ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:751:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           insw(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw'
   #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count)
                                            ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:759:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           insl(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl'
   #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count)
                                            ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:768:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           outsb(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb'
   #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count)
                                              ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:777:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           outsw(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw'
   #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count)
                                              ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:786:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           outsl(addr, buffer, count);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl'
   #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count)
                                              ~~~~~~~~~~ ^
   In file included from arch/riscv/kernel/crash_core.c:4:
   In file included from include/linux/pagemap.h:11:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/riscv/include/asm/io.h:136:
   include/asm-generic/io.h:1134:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
                                                     ~~~~~~~~~~ ^
>> arch/riscv/kernel/crash_core.c:8:20: error: use of undeclared identifier 'VA_BITS'
           VMCOREINFO_NUMBER(VA_BITS);
                             ^
>> arch/riscv/kernel/crash_core.c:12:57: warning: format specifies type 'unsigned long' but the argument has type 'int' [-Wformat]
           vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
                                                          ~~~     ^~~~~~~~~~~~~
                                                          %x
   arch/riscv/include/asm/pgtable.h:799:24: note: expanded from macro 'VMALLOC_START'
   #define VMALLOC_START           0
                                   ^
>> arch/riscv/kernel/crash_core.c:14:57: error: use of undeclared identifier 'VMEMMAP_START'
           vmcoreinfo_append_str("NUMBER(VMEMMAP_START)=0x%lx\n", VMEMMAP_START);
                                                                  ^
>> arch/riscv/kernel/crash_core.c:15:55: error: use of undeclared identifier 'VMEMMAP_END'; did you mean 'MEMREMAP_ENC'?
           vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);
                                                                ^~~~~~~~~~~
                                                                MEMREMAP_ENC
   include/linux/io.h:140:2: note: 'MEMREMAP_ENC' declared here
           MEMREMAP_ENC = 1 << 3,
           ^
>> arch/riscv/kernel/crash_core.c:17:57: error: use of undeclared identifier 'MODULES_VADDR'
           vmcoreinfo_append_str("NUMBER(MODULES_VADDR)=0x%lx\n", MODULES_VADDR);
                                                                  ^
>> arch/riscv/kernel/crash_core.c:18:55: error: use of undeclared identifier 'MODULES_END'
           vmcoreinfo_append_str("NUMBER(MODULES_END)=0x%lx\n", MODULES_END);
                                                                ^
   14 warnings and 5 errors generated.


vim +/VA_BITS +8 arch/riscv/kernel/crash_core.c

     5	
     6	void arch_crash_save_vmcoreinfo(void)
     7	{
   > 8		VMCOREINFO_NUMBER(VA_BITS);
     9		VMCOREINFO_NUMBER(phys_ram_base);
    10	
    11		vmcoreinfo_append_str("NUMBER(PAGE_OFFSET)=0x%lx\n", PAGE_OFFSET);
  > 12		vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
    13		vmcoreinfo_append_str("NUMBER(VMALLOC_END)=0x%lx\n", VMALLOC_END);
  > 14		vmcoreinfo_append_str("NUMBER(VMEMMAP_START)=0x%lx\n", VMEMMAP_START);
  > 15		vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);
    16	#ifdef CONFIG_64BIT
  > 17		vmcoreinfo_append_str("NUMBER(MODULES_VADDR)=0x%lx\n", MODULES_VADDR);
  > 18		vmcoreinfo_append_str("NUMBER(MODULES_END)=0x%lx\n", MODULES_END);

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