Re: [PATCH 03/15] ttm/pool: port to list_lru. (v2)

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

Hi Dave,

kernel test robot noticed the following build errors:

[auto build test ERROR on tj-cgroup/for-next]
[also build test ERROR on linus/master v6.17-rc4]
[cannot apply to akpm-mm/mm-everything next-20250902]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dave-Airlie/drm-ttm-use-gpu-mm-stats-to-track-gpu-memory-allocations-v4/20250902-130646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-next
patch link:    https://lore.kernel.org/r/20250902041024.2040450-4-airlied%40gmail.com
patch subject: [PATCH 03/15] ttm/pool: port to list_lru. (v2)
config: i386-buildonly-randconfig-002-20250903 (https://download.01.org/0day-ci/archive/20250903/202509030849.OExBO13p-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250903/202509030849.OExBO13p-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/202509030849.OExBO13p-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/drm/ttm/ttm_device.h:31,
                    from drivers/gpu/drm/ttm/ttm_range_manager.c:32:
>> include/drm/ttm/ttm_pool.h:57:25: error: field 'pages' has incomplete type
      57 |         struct list_lru pages;
         |                         ^~~~~


vim +/pages +57 include/drm/ttm/ttm_pool.h

    40	
    41	/**
    42	 * struct ttm_pool_type - Pool for a certain memory type
    43	 *
    44	 * @pool: the pool we belong to, might be NULL for the global ones
    45	 * @order: the allocation order our pages have
    46	 * @caching: the caching type our pages have
    47	 * @shrinker_list: our place on the global shrinker list
    48	 * @pages: the lru_list of pages in the pool
    49	 */
    50	struct ttm_pool_type {
    51		struct ttm_pool *pool;
    52		unsigned int order;
    53		enum ttm_caching caching;
    54	
    55		struct list_head shrinker_list;
    56	
  > 57		struct list_lru pages;
    58	};
    59	

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