Hi Oak, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip linus/master v5.12-rc1 next-20210301] [cannot apply to tegra-drm/drm/tegra/for-next drm-exynos/exynos-drm-next drm/drm-next] [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] url: https://github.com/0day-ci/linux/commits/Oak-Zeng/drm-ttm-ioremap-buffer-according-to-TTM-mem-caching-setting/20210302-064500 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: parisc-randconfig-r012-20210302 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/225bb3711439ec559dd72ae5af8e62d34ea60a64 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Oak-Zeng/drm-ttm-ioremap-buffer-according-to-TTM-mem-caching-setting/20210302-064500 git checkout 225bb3711439ec559dd72ae5af8e62d34ea60a64 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_resource_ioremap': drivers/gpu/drm/ttm/ttm_bo_util.c:95:11: error: implicit declaration of function 'ioremap_cache'; did you mean 'ioremap_uc'? [-Werror=implicit-function-declaration] 95 | addr = ioremap_cache(mem->bus.offset, bus_size); | ^~~~~~~~~~~~~ | ioremap_uc >> drivers/gpu/drm/ttm/ttm_bo_util.c:95:9: warning: assignment to 'void *' from >> 'int' makes pointer from integer without a cast [-Wint-conversion] 95 | addr = ioremap_cache(mem->bus.offset, bus_size); | ^ drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_ioremap': drivers/gpu/drm/ttm/ttm_bo_util.c:379:17: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 379 | map->virtual = ioremap_cache(bo->mem.bus.offset + offset, | ^ drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_vmap': drivers/gpu/drm/ttm/ttm_bo_util.c:500:16: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 500 | vaddr_iomem = ioremap_cache(mem->bus.offset, | ^ cc1: some warnings being treated as errors vim +95 drivers/gpu/drm/ttm/ttm_bo_util.c 74 75 static int ttm_resource_ioremap(struct ttm_bo_device *bdev, 76 struct ttm_resource *mem, 77 void **virtual) 78 { 79 int ret; 80 void *addr; 81 82 *virtual = NULL; 83 ret = ttm_mem_io_reserve(bdev, mem); 84 if (ret || !mem->bus.is_iomem) 85 return ret; 86 87 if (mem->bus.addr) { 88 addr = mem->bus.addr; 89 } else { 90 size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT; 91 92 if (mem->bus.caching == ttm_write_combined) 93 addr = ioremap_wc(mem->bus.offset, bus_size); 94 else if (mem->bus.caching == ttm_cached) > 95 addr = ioremap_cache(mem->bus.offset, bus_size); 96 else 97 addr = ioremap(mem->bus.offset, bus_size); 98 if (!addr) { 99 ttm_mem_io_free(bdev, mem); 100 return -ENOMEM; 101 } 102 } 103 *virtual = addr; 104 return 0; 105 } 106 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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