tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: f030ffc8e0c6dac3503bebddbf49cc339003fcdb commit: 968ee436e4d0ce09994f74015dc163ef280ccc1e [2516/2516] drm/ast: Fixed display error for ps23xx when using ast bmc card config: x86_64-randconfig-121-20241203 (https://download.01.org/0day-ci/archive/20241203/202412032029.eVzOP3UR-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241203/202412032029.eVzOP3UR-lkp@i...)

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/202412032029.eVzOP3UR-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)

...

drivers/gpu/drm/ast/ast_mm.c:91:39: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *addr @@ got void [noderef] __iomem * @@

drivers/gpu/drm/ast/ast_mm.c:91:39: sparse: expected void *addr drivers/gpu/drm/ast/ast_mm.c:91:39: sparse: got void [noderef] __iomem *

vim +91 drivers/gpu/drm/ast/ast_mm.c

76 77 static int ast_driver_io_mem_reserve(struct ttm_bo_device *bdev, 78 struct ttm_resource *mem) 79 { 80 struct drm_vram_mm *vmm = drm_vram_mm_of_bdev(bdev); 81 size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT; 82 83 switch (mem->mem_type) { 84 case TTM_PL_SYSTEM: /* nothing to do */ 85 break; 86 case TTM_PL_VRAM: 87 mem->bus.offset = (mem->start << PAGE_SHIFT) + vmm->vram_base; 88 mem->bus.is_iomem = true; 89 90 mem->placement = TTM_PL_FLAG_UNCACHED;

91 mem->bus.addr = ioremap(mem->bus.offset, bus_size);

92 93 if (!mem->bus.addr) 94 return -ENOMEM; 95 96 break; 97 default: 98 return -EINVAL; 99 } 100 101 return 0; 102 } 103