tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next head: ab5d964c001b9efffcbfa4d67a30186b67d79771 commit: a035154da45d19e09dc68454673ff257a660aece [5/10] drm/i915/dmabuf: add paranoid flush-on-acquire config: x86_64-randconfig-a004-20211021 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 3cea2505fd8d99a9ba0cb625aecfe28a47c4e3f8) 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 git remote add drm-intel git://anongit.freedesktop.org/drm-intel git fetch --no-tags drm-intel drm-intel-gt-next git checkout a035154da45d19e09dc68454673ff257a660aece # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com

All errors (new ones prefixed by >>):

...

drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c:248:3: error: implicit declaration of function 'wbinvd_on_all_cpus' [-Werror,-Wimplicit-function-declaration]

wbinvd_on_all_cpus(); ^ 1 error generated.

vim +/wbinvd_on_all_cpus +248 drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c

232 233 static int i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj) 234 { 235 struct drm_i915_private *i915 = to_i915(obj->base.dev); 236 struct sg_table *pages; 237 unsigned int sg_page_sizes; 238 239 assert_object_held(obj); 240 241 pages = dma_buf_map_attachment(obj->base.import_attach, 242 DMA_BIDIRECTIONAL); 243 if (IS_ERR(pages)) 244 return PTR_ERR(pages); 245 246 /* XXX: consider doing a vmap flush or something */ 247 if (!HAS_LLC(i915) || i915_gem_object_can_bypass_llc(obj))

248 wbinvd_on_all_cpus();

249 250 sg_page_sizes = i915_sg_dma_sizes(pages->sgl); 251 __i915_gem_object_set_pages(obj, pages, sg_page_sizes); 252 253 return 0; 254 } 255

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