[peterz-queue:master 63/117] arch/x86/include/asm/pgtable_64_types.h:22:34: error: conflicting types for 'pmd_t'

Monday, 19 July 2021

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git master
head:   5cc6b2c3c0139891e38a2fcce98e03ff705b0941
commit: 7a3a77fc49a679bc41c237cc01dce34c6fc8e1b1 [63/117] x86/mm/pae: Make pmd_t similar
to pte_t
config: um-allmodconfig (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce (this is a W=1 build):
        #
https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?...
        git remote add peterz-queue
https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
        git fetch --no-tags peterz-queue master
        git checkout 7a3a77fc49a679bc41c237cc01dce34c6fc8e1b1
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/dma/idxd/
drivers/media/pci/ivtv/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com&gt;

All errors (new ones prefixed by >>):

                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:77: note: this is the location of the previous
definition
      77 | #define __P110 PAGE_COPY
         | 
   In file included from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_types.h:239: warning: "__P111" redefined
     239 | #define __P111 PAGE_COPY_EXEC
         | 
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:78: note: this is the location of the previous
definition
      78 | #define __P111 PAGE_COPY
         | 
   In file included from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_types.h:245: warning: "__S100" redefined
     245 | #define __S100 PAGE_READONLY_EXEC
         | 
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:84: note: this is the location of the previous
definition
      84 | #define __S100 PAGE_READONLY
         | 
   In file included from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_types.h:246: warning: "__S101" redefined
     246 | #define __S101 PAGE_READONLY_EXEC
         | 
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:85: note: this is the location of the previous
definition
      85 | #define __S101 PAGE_READONLY
         | 
   In file included from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_types.h:247: warning: "__S110" redefined
     247 | #define __S110 PAGE_SHARED_EXEC
         | 
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:86: note: this is the location of the previous
definition
      86 | #define __S110 PAGE_SHARED
         | 
   In file included from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_types.h:248: warning: "__S111" redefined
     248 | #define __S111 PAGE_SHARED_EXEC
         | 
   In file included from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable.h:87: note: this is the location of the previous
definition
      87 | #define __S111 PAGE_SHARED
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:21:34: error: conflicting types for
'pte_t'
      21 | typedef struct { pteval_t pte; } pte_t;
         |                                  ^~~~~
   In file included from include/linux/mm_types_task.h:16,
                    from include/linux/mm_types.h:5,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from drivers/media/pci/ivtv/ivtv-driver.h:40,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/page.h:57:39: note: previous declaration of 'pte_t' was
here
      57 | typedef struct { unsigned long pte; } pte_t;
         |                                       ^~~~~
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
...
> arch/x86/include/asm/pgtable_64_types.h:22:34: error: conflicting
types for 'pmd_t'       22 | typedef struct { pmdval_t pmd; } pmd_t;
         |                                  ^~~~~
   In file included from include/linux/mm_types_task.h:16,
                    from include/linux/mm_types.h:5,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from drivers/media/pci/ivtv/ivtv-driver.h:40,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/page.h:61:39: note: previous declaration of 'pmd_t' was
here
      61 | typedef struct { unsigned long pmd; } pmd_t;
         |                                       ^~~~~
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:75: warning: "PGDIR_SHIFT" redefined
      75 | #define PGDIR_SHIFT  39
         | 
   In file included from arch/um/include/asm/pgtable.h:25,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable-3level.h:15: note: this is the location of the previous
definition
      15 | #define PGDIR_SHIFT 30
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:77: warning: "MAX_PTRS_PER_P4D"
redefined
      77 | #define MAX_PTRS_PER_P4D 1
         | 
   In file included from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   include/linux/pgtable.h:1653: note: this is the location of the previous definition
    1653 | #define MAX_PTRS_PER_P4D PTRS_PER_P4D
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:84: warning: "PUD_SHIFT" redefined
      84 | #define PUD_SHIFT 30
         | 
   In file included from arch/um/include/asm/pgtable-3level.h:10,
                    from arch/um/include/asm/pgtable.h:25,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   include/asm-generic/pgtable-nopud.h:18: note: this is the location of the previous
definition
      18 | #define PUD_SHIFT P4D_SHIFT
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:85: warning: "PTRS_PER_PUD"
redefined
      85 | #define PTRS_PER_PUD 512
         | 
   In file included from arch/um/include/asm/pgtable-3level.h:10,
                    from arch/um/include/asm/pgtable.h:25,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   include/asm-generic/pgtable-nopud.h:19: note: this is the location of the previous
definition
      19 | #define PTRS_PER_PUD 1
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:99: warning: "PMD_SIZE" redefined
      99 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
         | 
   In file included from arch/um/include/asm/pgtable.h:25,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dmapool.h:14,
                    from include/linux/pci.h:1466,
                    from drivers/media/pci/ivtv/ivtv-driver.h:45,
                    from drivers/media/pci/ivtv/ivtvfb.c:29:
   arch/um/include/asm/pgtable-3level.h:27: note: this is the location of the previous
definition
      27 | #define PMD_SIZE (1UL << PMD_SHIFT)
         | 
   In file included from arch/x86/include/asm/pgtable_types.h:264,
                    from arch/x86/include/asm/memtype.h:6,
                    from drivers/media/pci/ivtv/ivtvfb.c:40:
   arch/x86/include/asm/pgtable_64_types.h:100: warning: "PMD_MASK" redefined

vim +/pmd_t +22 arch/x86/include/asm/pgtable_64_types.h

    20	
    21	typedef struct { pteval_t pte; } pte_t;
...
 22	typedef struct { pmdval_t pmd; } pmd_t;     23	

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