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* [akpm-mm:mm-unstable 72/100] arch/riscv/kernel/crash_core.c:8:20: error: use of undeclared identifier 'VA_BITS'
@ 2023-07-04 22:05 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-07-04 22:05 UTC (permalink / raw)
  To: Eric DeVolder
  Cc: llvm, oe-kbuild-all, Andrew Morton, Linux Memory Management List

Hi Eric,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   8d20350d536e5ecb12482b7ccc6cd04fe0ae6c11
commit: 4820d7a789905ed86ada5b25aa5d74fad6af3a51 [72/100] riscv/kexec: refactor for kernel/Kconfig.kexec
config: riscv-randconfig-r004-20230704 (https://download.01.org/0day-ci/archive/20230705/202307050623.1pK6zLcS-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230705/202307050623.1pK6zLcS-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307050623.1pK6zLcS-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]
     594 |         __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]
     604 |         __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]
     743 |         insb(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb'
     104 | #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]
     751 |         insw(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw'
     105 | #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]
     759 |         insl(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl'
     106 | #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]
     768 |         outsb(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb'
     118 | #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]
     777 |         outsw(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw'
     119 | #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]
     786 |         outsl(addr, buffer, count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl'
     120 | #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]
    1134 |         return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
         |                                                   ~~~~~~~~~~ ^
>> arch/riscv/kernel/crash_core.c:8:20: error: use of undeclared identifier 'VA_BITS'
       8 |         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]
      12 |         vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
         |                                                        ~~~     ^~~~~~~~~~~~~
         |                                                        %x
   arch/riscv/include/asm/pgtable.h:865:24: note: expanded from macro 'VMALLOC_START'
     865 | #define VMALLOC_START           0
         |                                 ^
>> arch/riscv/kernel/crash_core.c:14:57: error: use of undeclared identifier 'VMEMMAP_START'
      14 |         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'?
      15 |         vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);
         |                                                              ^~~~~~~~~~~
         |                                                              MEMREMAP_ENC
   include/linux/io.h:145:2: note: 'MEMREMAP_ENC' declared here
     145 |         MEMREMAP_ENC = 1 << 3,
         |         ^
   14 warnings and 3 errors generated.


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

649d6b1019a2f2 Xianting Tian 2022-10-26   5  
649d6b1019a2f2 Xianting Tian 2022-10-26   6  void arch_crash_save_vmcoreinfo(void)
649d6b1019a2f2 Xianting Tian 2022-10-26   7  {
649d6b1019a2f2 Xianting Tian 2022-10-26  @8  	VMCOREINFO_NUMBER(VA_BITS);
649d6b1019a2f2 Xianting Tian 2022-10-26   9  	VMCOREINFO_NUMBER(phys_ram_base);
649d6b1019a2f2 Xianting Tian 2022-10-26  10  
649d6b1019a2f2 Xianting Tian 2022-10-26  11  	vmcoreinfo_append_str("NUMBER(PAGE_OFFSET)=0x%lx\n", PAGE_OFFSET);
649d6b1019a2f2 Xianting Tian 2022-10-26 @12  	vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
649d6b1019a2f2 Xianting Tian 2022-10-26  13  	vmcoreinfo_append_str("NUMBER(VMALLOC_END)=0x%lx\n", VMALLOC_END);
649d6b1019a2f2 Xianting Tian 2022-10-26 @14  	vmcoreinfo_append_str("NUMBER(VMEMMAP_START)=0x%lx\n", VMEMMAP_START);
649d6b1019a2f2 Xianting Tian 2022-10-26 @15  	vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);

:::::: The code at line 8 was first introduced by commit
:::::: 649d6b1019a2f243bc3a98cb85902a8ebf74289a RISC-V: Add arch_crash_save_vmcoreinfo support

:::::: TO: Xianting Tian <xianting.tian@linux.alibaba.com>
:::::: CC: Palmer Dabbelt <palmer@rivosinc.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki


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