[radeon-alex:amd-19.50 2082/2713] include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t'

22 Jan 2020


      Hi Prike,
FYI, the error/warning still remains.
tree:   git://people.freedesktop.org/~agd5f/linux.git amd-19.50
head:   f9a0b7ad3447d7766dda9923e63a5f4d0be7ce47
commit: 3ba40228e28c15ca2dfec398cd7e5ebebdb5a9c2 [2082/2713] drm/amdkcl: Test whether vmf_insert_*() functions are available
config: i386-allyesconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        git checkout 3ba40228e28c15ca2dfec398cd7e5ebebdb5a9c2
        # save the attached .config to linux build tree
        make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot lkp@intel.com
All errors (new ones prefixed by >>):
from <command-line>:0:
   include/linux/mm.h:663:13: note: previous declaration of 'kvfree' was here
    extern void kvfree(const void *addr);
                ^~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:8:0,
                    from <command-line>:0:
   include/kcl/kcl_mm.h:104:21: error: redefinition of 'kvmalloc_array'
    static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:648:21: note: previous definition of 'kvmalloc_array' was here
    static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:8:0,
                    from <command-line>:0:
   include/kcl/kcl_mm.h:117:21: error: redefinition of 'kvcalloc'
    static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:658:21: note: previous definition of 'kvcalloc' was here
    static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0,
                    from <command-line>:0:
   include/kcl/kcl_fence.h:161:20: error: redefinition of 'dma_fence_set_error'
    static inline void dma_fence_set_error(struct dma_fence *fence,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from include/drm/drmP.h:58:0,
                    from include/kcl/kcl_drm.h:6,
                    from drivers/gpu/drm/ttm/backport/backport.h:6,
                    from <command-line>:0:
   include/linux/dma-fence.h:517:20: note: previous definition of 'dma_fence_set_error' was here
    static inline void dma_fence_set_error(struct dma_fence *fence,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0,
                    from <command-line>:0:
   include/kcl/kcl_fence.h: In function 'dma_fence_set_error':
   include/kcl/kcl_fence.h:167:7: error: 'struct dma_fence' has no member named 'status'
     fence->status = error;
          ^~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:10:0,
                    from <command-line>:0:
   include/kcl/kcl_list.h: At top level:
   include/kcl/kcl_list.h:6:20: error: redefinition of 'list_bulk_move_tail'
    static inline void list_bulk_move_tail(struct list_head *head,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/preempt.h:11:0,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/list.h:212:20: note: previous definition of 'list_bulk_move_tail' was here
    static inline void list_bulk_move_tail(struct list_head *head,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0,
                    from <command-line>:0:
   include/kcl/kcl_kref.h:7:28: error: redefinition of 'kref_read'
    static inline unsigned int kref_read(const struct kref *kref)
                               ^~~~~~~~~
   In file included from include/linux/kobject.h:23:0,
                    from include/linux/device.h:16,
                    from include/drm/drm_print.h:32,
                    from include/drm/drm_mm.h:49,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/kref.h:36:28: note: previous definition of 'kref_read' was here
    static inline unsigned int kref_read(const struct kref *kref)
                               ^~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0,
                    from <command-line>:0:
   include/kcl/kcl_kref.h: In function 'kref_read':
   include/kcl/kcl_kref.h:9:21: error: passing argument 1 of 'atomic_read' from incompatible pointer type [-Werror=incompatible-pointer-types]
     return atomic_read(&kref->refcount);
                        ^
   In file included from arch/x86/include/asm/atomic.h:265:0,
                    from include/linux/atomic.h:7,
                    from include/linux/rcupdate.h:25,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/asm-generic/atomic-instrumented.h:24:1: note: expected 'const atomic_t * {aka const struct <anonymous> *}' but argument is of type 'const refcount_t * {aka const struct refcount_struct *}'
    atomic_read(const atomic_t *v)
    ^~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: At top level:
...
...
include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t'
} pfn_t;
      ^~~~~
   In file included from include/asm-generic/memory_model.h:5:0,
                    from arch/x86/include/asm/page.h:76,
                    from arch/x86/include/asm/thread_info.h:12,
                    from include/linux/thread_info.h:38,
                    from arch/x86/include/asm/preempt.h:7,
                    from include/linux/preempt.h:78,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/pfn.h:15:3: note: previous declaration of 'pfn_t' was here
    } pfn_t;
      ^~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
...
...
include/kcl/kcl_mm_types.h:33:13: error: conflicting types for 'vm_fault_t'
typedef int vm_fault_t;
                ^~~~~~~~~~
   In file included from include/drm/drm_mm.h:43:0,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm_types.h:631:32: note: previous declaration of 'vm_fault_t' was here
    typedef __bitwise unsigned int vm_fault_t;
                                   ^~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
...
...
include/kcl/kcl_mm_types.h:35:26: error: conflicting types for 'vmf_insert_mixed'
static inline vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma,
                             ^~~~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:2587:12: note: previous declaration of 'vmf_insert_mixed' was here
    vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
               ^~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: In function 'vmf_insert_mixed':
...
...
include/kcl/kcl_mm_types.h:41:8: error: implicit declaration of function 'vm_insert_mixed'; did you mean 'vmf_insert_mixed'? [-Werror=implicit-function-declaration]
err = vm_insert_mixed(vma, addr, pfn_t_to_pfn(pfn));
           ^~~~~~~~~~~~~~~
           vmf_insert_mixed
   include/kcl/kcl_mm_types.h: At top level:
...
...
include/kcl/kcl_mm_types.h:53:26: error: conflicting types for 'vmf_insert_pfn'
static inline vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma,
                             ^~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:2583:12: note: previous declaration of 'vmf_insert_pfn' was here
    vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
               ^~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: In function 'vmf_insert_pfn':
...
...
include/kcl/kcl_mm_types.h:56:13: error: implicit declaration of function 'vm_insert_pfn'; did you mean 'vmf_insert_pfn'? [-Werror=implicit-function-declaration]
int err = vm_insert_pfn(vma, addr, pfn);
                ^~~~~~~~~~~~~
                vmf_insert_pfn
   cc1: some warnings being treated as errors
--
                    from <command-line>:0:
   include/linux/mm.h:663:13: note: previous declaration of 'kvfree' was here
    extern void kvfree(const void *addr);
                ^~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:8:0,
                    from <command-line>:0:
   include/kcl/kcl_mm.h:104:21: error: redefinition of 'kvmalloc_array'
    static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:648:21: note: previous definition of 'kvmalloc_array' was here
    static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:8:0,
                    from <command-line>:0:
   include/kcl/kcl_mm.h:117:21: error: redefinition of 'kvcalloc'
    static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:658:21: note: previous definition of 'kvcalloc' was here
    static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
                        ^~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0,
                    from <command-line>:0:
   include/kcl/kcl_fence.h:161:20: error: redefinition of 'dma_fence_set_error'
    static inline void dma_fence_set_error(struct dma_fence *fence,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from include/drm/drmP.h:58:0,
                    from include/kcl/kcl_drm.h:6,
                    from drivers/gpu/drm/ttm/backport/backport.h:6,
                    from <command-line>:0:
   include/linux/dma-fence.h:517:20: note: previous definition of 'dma_fence_set_error' was here
    static inline void dma_fence_set_error(struct dma_fence *fence,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0,
                    from <command-line>:0:
   include/kcl/kcl_fence.h: In function 'dma_fence_set_error':
   include/kcl/kcl_fence.h:167:7: error: 'struct dma_fence' has no member named 'status'
     fence->status = error;
          ^~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:10:0,
                    from <command-line>:0:
   include/kcl/kcl_list.h: At top level:
   include/kcl/kcl_list.h:6:20: error: redefinition of 'list_bulk_move_tail'
    static inline void list_bulk_move_tail(struct list_head *head,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/preempt.h:11:0,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/list.h:212:20: note: previous definition of 'list_bulk_move_tail' was here
    static inline void list_bulk_move_tail(struct list_head *head,
                       ^~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0,
                    from <command-line>:0:
   include/kcl/kcl_kref.h:7:28: error: redefinition of 'kref_read'
    static inline unsigned int kref_read(const struct kref *kref)
                               ^~~~~~~~~
   In file included from include/linux/kobject.h:23:0,
                    from include/linux/device.h:16,
                    from include/drm/drm_print.h:32,
                    from include/drm/drm_mm.h:49,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/kref.h:36:28: note: previous definition of 'kref_read' was here
    static inline unsigned int kref_read(const struct kref *kref)
                               ^~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0,
                    from <command-line>:0:
   include/kcl/kcl_kref.h: In function 'kref_read':
   include/kcl/kcl_kref.h:9:21: error: passing argument 1 of 'atomic_read' from incompatible pointer type [-Werror=incompatible-pointer-types]
     return atomic_read(&kref->refcount);
                        ^
   In file included from arch/x86/include/asm/atomic.h:265:0,
                    from include/linux/atomic.h:7,
                    from include/linux/rcupdate.h:25,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/asm-generic/atomic-instrumented.h:24:1: note: expected 'const atomic_t * {aka const struct <anonymous> *}' but argument is of type 'const refcount_t * {aka const struct refcount_struct *}'
    atomic_read(const atomic_t *v)
    ^~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: At top level:
...
...
include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t'
} pfn_t;
      ^~~~~
   In file included from include/asm-generic/memory_model.h:5:0,
                    from arch/x86/include/asm/page.h:76,
                    from arch/x86/include/asm/thread_info.h:12,
                    from include/linux/thread_info.h:38,
                    from arch/x86/include/asm/preempt.h:7,
                    from include/linux/preempt.h:78,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rbtree.h:34,
                    from include/drm/drm_mm.h:41,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/pfn.h:15:3: note: previous declaration of 'pfn_t' was here
    } pfn_t;
      ^~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
...
...
include/kcl/kcl_mm_types.h:33:13: error: conflicting types for 'vm_fault_t'
typedef int vm_fault_t;
                ^~~~~~~~~~
   In file included from include/drm/drm_mm.h:43:0,
                    from include/drm/drm_vma_manager.h:26,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm_types.h:631:32: note: previous declaration of 'vm_fault_t' was here
    typedef __bitwise unsigned int vm_fault_t;
                                   ^~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
...
...
include/kcl/kcl_mm_types.h:35:26: error: conflicting types for 'vmf_insert_mixed'
static inline vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma,
                             ^~~~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:2587:12: note: previous declaration of 'vmf_insert_mixed' was here
    vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
               ^~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: In function 'vmf_insert_mixed':
...
...
include/kcl/kcl_mm_types.h:41:8: error: implicit declaration of function 'vm_insert_mixed'; did you mean 'vmf_insert_mixed'? [-Werror=implicit-function-declaration]
err = vm_insert_mixed(vma, addr, pfn_t_to_pfn(pfn));
           ^~~~~~~~~~~~~~~
           vmf_insert_mixed
   include/kcl/kcl_mm_types.h: At top level:
...
...
include/kcl/kcl_mm_types.h:53:26: error: conflicting types for 'vmf_insert_pfn'
static inline vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma,
                             ^~~~~~~~~~~~~~
   In file included from include/drm/drm_vma_manager.h:27:0,
                    from include/kcl/kcl_drm_vma_manager.h:8,
                    from drivers/gpu/drm/ttm/backport/backport.h:5,
                    from <command-line>:0:
   include/linux/mm.h:2583:12: note: previous declaration of 'vmf_insert_pfn' was here
    vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
               ^~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0,
                    from <command-line>:0:
   include/kcl/kcl_mm_types.h: In function 'vmf_insert_pfn':
...
...
include/kcl/kcl_mm_types.h:56:13: error: implicit declaration of function 'vm_insert_pfn'; did you mean 'vmf_insert_pfn'? [-Werror=implicit-function-declaration]
int err = vm_insert_pfn(vma, addr, pfn);
                ^~~~~~~~~~~~~
                vmf_insert_pfn
   drivers/gpu/drm/ttm/ttm_bo_vm.c: At top level:
...
...
drivers/gpu/drm/ttm/ttm_bo_vm.c:427:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.fault = ttm_bo_vm_fault,
              ^~~~~~~~~~~~~~~
   drivers/gpu/drm/ttm/ttm_bo_vm.c:427:11: note: (near initialization for 'ttm_bo_vm_ops.fault')
   cc1: some warnings being treated as errors
..
vim +/pfn_t +10 include/kcl/kcl_mm_types.h
3	
     4	#include <linux/mm.h>
     5	#ifdef HAVE_PFN_T
     6	#include <linux/pfn_t.h>
     7	#else
     8	typedef struct {
     9		u64 val;
...
10	} pfn_t;
11	
    12	#define PFN_FLAGS_MASK (((unsigned long) ~PAGE_MASK) \
    13				<< (BITS_PER_LONG - PAGE_SHIFT))
    14	#define PFN_SG_CHAIN (1UL << (BITS_PER_LONG - 1))
    15	#define PFN_SG_LAST (1UL << (BITS_PER_LONG - 2))
    16	#define PFN_DEV (1UL << (BITS_PER_LONG - 3))
    17	#define PFN_MAP (1UL << (BITS_PER_LONG - 4))
    18	
    19	static inline pfn_t __pfn_to_pfn_t(unsigned long pfn, unsigned long flags)
    20	{
    21		pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), };
    22	
    23		return pfn_t;
    24	}
    25	
    26	static inline unsigned long pfn_t_to_pfn(pfn_t pfn)
    27	{
    28		return pfn.val & ~PFN_FLAGS_MASK;
    29	}
    30	#endif
    31	
    32	#ifndef HAVE_VMF_INSERT
...
33	typedef int vm_fault_t;
34
...
35	static inline vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma,
36					unsigned long addr,
    37					pfn_t pfn)
    38	{
    39		int err;
    40	#if !defined(HAVE_PFN_T_VM_INSERT_MIXED)
...
41		err = vm_insert_mixed(vma, addr, pfn_t_to_pfn(pfn));
42	#else
    43		err = vm_insert_mixed(vma, addr, pfn);
    44	#endif
    45		if (err == -ENOMEM)
    46			return VM_FAULT_OOM;
    47		if (err < 0 && err != -EBUSY)
    48			return VM_FAULT_SIGBUS;
    49	
    50		return VM_FAULT_NOPAGE;
    51	}
    52
...
53	static inline vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma,
54					unsigned long addr, unsigned long pfn)
    55	{
...
56			int err = vm_insert_pfn(vma, addr, pfn);
57	
    58			if (err == -ENOMEM)
    59				return VM_FAULT_OOM;
    60			if (err < 0 && err != -EBUSY)
    61				return VM_FAULT_SIGBUS;
    62	
    63			return VM_FAULT_NOPAGE;
    64	}
    65
---
0-DAY kernel test infrastructure                 Open Source Technology Center
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[radeon-alex:amd-19.50 2082/2713] include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t'