[android-common:android14-kiwi-6.1 0/192] drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1727:6: warning: no previous prototype for 'kfd_fill_cache_non_crat_info'

Hi Ma,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android14-kiwi-6.1
head:   15bdff0dd01eed4ffc4ae138c5a611d8b102a4b6
commit: 0ac954ec7f6c6dd6b7e94340599ba4b788d056d5 [0/192] drm/amdkfd: Fix the warning of array-index-out-of-bounds
config: x86_64-buildonly-randconfig-002-20260716 (https://download.01.org/0day-ci/archive/20260718/[email protected]/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260718/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1727:6: warning: no previous prototype for 'kfd_fill_cache_non_crat_info' [-Wmissing-prototypes]
    1727 | void kfd_fill_cache_non_crat_info(struct kfd_topology_device *dev, struct kfd_dev *kdev)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/kfd_fill_cache_non_crat_info +1727 drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c

  1723	
  1724	/* kfd_fill_cache_non_crat_info - Fill GPU cache info using kfd_gpu_cache_info
  1725	 * tables
  1726	 */
> 1727	void kfd_fill_cache_non_crat_info(struct kfd_topology_device *dev, struct kfd_dev *kdev)
  1728	{
  1729		struct kfd_gpu_cache_info *pcache_info = NULL;
  1730		int i, j, k;
  1731		int ct = 0;
  1732		unsigned int cu_processor_id;
  1733		int ret;
  1734		unsigned int num_cu_shared;
  1735		struct kfd_cu_info cu_info;
  1736		struct kfd_cu_info *pcu_info;
  1737		int gpu_processor_id;
  1738		struct kfd_cache_properties *props_ext;
  1739		int num_of_entries = 0;
  1740		int num_of_cache_types = 0;
  1741		struct kfd_gpu_cache_info cache_info[KFD_MAX_CACHE_TYPES];
  1742	
  1743		amdgpu_amdkfd_get_cu_info(kdev->adev, &cu_info);
  1744		pcu_info = &cu_info;
  1745	
  1746		gpu_processor_id = dev->node_props.simd_id_base;
  1747	
  1748		pcache_info = cache_info;
  1749		num_of_cache_types = kfd_get_gpu_cache_info(kdev, &pcache_info);
  1750		if (!num_of_cache_types) {
  1751			pr_warn("no cache info found\n");
  1752			return;
  1753		}
  1754	
  1755		/* For each type of cache listed in the kfd_gpu_cache_info table,
  1756		 * go through all available Compute Units.
  1757		 * The [i,j,k] loop will
  1758		 *		if kfd_gpu_cache_info.num_cu_shared = 1
  1759		 *			will parse through all available CU
  1760		 *		If (kfd_gpu_cache_info.num_cu_shared != 1)
  1761		 *			then it will consider only one CU from
  1762		 *			the shared unit
  1763		 */
  1764		for (ct = 0; ct < num_of_cache_types; ct++) {
  1765			cu_processor_id = gpu_processor_id;
  1766			if (pcache_info[ct].cache_level == 1) {
  1767				for (i = 0; i < pcu_info->num_shader_engines; i++) {
  1768					for (j = 0; j < pcu_info->num_shader_arrays_per_engine; j++) {
  1769						for (k = 0; k < pcu_info->num_cu_per_sh; k += pcache_info[ct].num_cu_shared) {
  1770	
  1771							ret = fill_in_l1_pcache(&props_ext, pcache_info, pcu_info,
  1772											pcu_info->cu_bitmap[i % 4][j + i / 4], ct,
  1773											cu_processor_id, k);
  1774	
  1775							if (ret < 0)
  1776								break;
  1777	
  1778							if (!ret) {
  1779								num_of_entries++;
  1780								list_add_tail(&props_ext->list, &dev->cache_props);
  1781							}
  1782	
  1783							/* Move to next CU block */
  1784							num_cu_shared = ((k + pcache_info[ct].num_cu_shared) <=
  1785								pcu_info->num_cu_per_sh) ?
  1786								pcache_info[ct].num_cu_shared :
  1787								(pcu_info->num_cu_per_sh - k);
  1788							cu_processor_id += num_cu_shared;
  1789						}
  1790					}
  1791				}
  1792			} else {
  1793				ret = fill_in_l2_l3_pcache(&props_ext, pcache_info,
  1794									pcu_info, ct, cu_processor_id);
  1795	
  1796				if (ret < 0)
  1797					break;
  1798	
  1799				if (!ret) {
  1800					num_of_entries++;
  1801					list_add_tail(&props_ext->list, &dev->cache_props);
  1802				}
  1803			}
  1804		}
  1805		dev->node_props.caches_count += num_of_entries;
  1806		pr_debug("Added [%d] GPU cache entries\n", num_of_entries);
  1807	}
  1808	

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