Re: [Intel-gfx] [PATCH 3/3] drm/i915/ttm: remove shmem memory region and gem object backend

[kernel test robot <lkp@intel.com>]

Hi Adrian,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]

url:    https://github.com/intel-lab-lkp/linux/commits/Adrian-Larumbe/remove-shmem-backend-and-region-and-unify-them-with-TTM/20220614-091628
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220616/202206162239.AM4QOO2c-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/c04ba9928dafe2d5889457af0f770e96da5798e1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Adrian-Larumbe/remove-shmem-backend-and-region-and-unify-them-with-TTM/20220614-091628
        git checkout c04ba9928dafe2d5889457af0f770e96da5798e1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/i915/

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1398: warning: expecting prototype for intel_region_ttm_shmem_init(). Prototype was for intel_region_ttm_init_shmem() instead
   drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1419: warning: Function parameter or member 'offset' not described in '__i915_gem_ttm_object_init'
   drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1419: warning: Function parameter or member 'page_size' not described in '__i915_gem_ttm_object_init'


vim +1398 drivers/gpu/drm/i915/gem/i915_gem_ttm.c

  1390	
  1391	/**
  1392	 * intel_region_ttm_shmem_init - Initialize a memory region for TTM.
  1393	 * @mem: The region to initialize.
  1394	 *
  1395	 * Return: 0 on success, negative error code on failure.
  1396	 */
  1397	static int intel_region_ttm_init_shmem(struct intel_memory_region *mem)
> 1398	{
  1399		i915_gemfs_init(mem->i915);
  1400	
  1401		return 0; /* Don't error, we can simply fallback to the kernel mnt */
  1402	}
  1403	

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