[thomash:topic/ttm_region 6/16] drivers/gpu/drm/i915/intel_memory_region.c:82:5: error: conflicting types for 'intel_memory_region_reserve'

Tuesday, 11 May 2021

tree:   git://people.freedesktop.org/~thomash/linux topic/ttm_region
head:   703b976a31bb7fb5c5badd538773df29acdcdf83
commit: f024f8409f26653450e88dd762fd3dcfb64f4ce4 [6/16] drm/i915/ttm: Initialize the ttm
device and memory managers.
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        git remote add thomash git://people.freedesktop.org/~thomash/linux
        git fetch --no-tags thomash topic/ttm_region
        git checkout f024f8409f26653450e88dd762fd3dcfb64f4ce4
        # save the attached .config to linux build tree
        make W=1 W=1 ARCH=i386 

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 >>):

   In file included from drivers/gpu/drm/i915/intel_memory_region.c:6:
   drivers/gpu/drm/i915/intel_memory_region.h:146:5: error: conflicting types for
'intel_memory_region_reserve'
     146 | int intel_memory_region_reserve(struct intel_memory_region *mem,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/intel_memory_region.h:117:5: note: previous declaration of
'intel_memory_region_reserve' was here
     117 | int intel_memory_region_reserve(struct intel_memory_region *mem,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
...
> drivers/gpu/drm/i915/intel_memory_region.c:82:5: error:
conflicting types for 'intel_memory_region_reserve'       82 | int
intel_memory_region_reserve(struct intel_memory_region *mem,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/i915/intel_memory_region.c:6:
   drivers/gpu/drm/i915/intel_memory_region.h:117:5: note: previous declaration of
'intel_memory_region_reserve' was here
     117 | int intel_memory_region_reserve(struct intel_memory_region *mem,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/intel_memory_region_reserve +82 drivers/gpu/drm/i915/intel_memory_region.c

    81	
...
 82	int intel_memory_region_reserve(struct intel_memory_region *mem,
    83					resource_size_t offset,
    84					resource_size_t size)
    85	{
    86		int ret;
    87		struct intel_region_reserve *reserve;
    88	
    89		if (!mem->priv_ops || !mem->priv_ops->reserve)
    90			return -EINVAL;
    91	
    92		reserve = kzalloc(sizeof(*reserve), GFP_KERNEL);
    93		if (!reserve)
    94			return -ENOMEM;
    95	
    96		reserve->node = mem->priv_ops->reserve(mem, offset, size);
    97		if (IS_ERR(reserve->node)) {
    98			ret = PTR_ERR(reserve->node);
    99			kfree(reserve);
   100			return ret;
   101		}
   102			
   103		mutex_lock(&mem->mm_lock);
   104		list_add_tail(&reserve->link, &mem->reserved);
   105		mutex_unlock(&mem->mm_lock);
   106	
   107		return 0;
   108	}
   109	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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