[kbuild-all] [chrome-os:chromeos-5.10 6618/7371] drivers/gpu/drm/evdi/evdi_gem.c:252:18: error: implicit declaration of function 'vmap'

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10 head: ba4b9f4fe4e97c4bf1bdd483f8e32a02fbc1b3f0 commit: 5d42c7b3d93d6ce4f7cfbfc0f0d6ea2c2445406a [6618/7371] CHROMIUM: Import latest evdi driver config: powerpc-randconfig-r023-20210415 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6a18cc23efad410db48a3ccfc233d215de7d4cb9) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.10 git checkout 5d42c7b3d93d6ce4f7cfbfc0f0d6ea2c2445406a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): drivers/gpu/drm/evdi/evdi_gem.c:241:63: error: too few arguments to function call, expected 2, have 1 obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf); ~~~~~~~~~~~~ ^ include/linux/dma-buf.h:507:5: note: 'dma_buf_vmap' declared here int dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map); ^ obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL); ^ obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vunmap(obj->vmapping); ^ drivers/gpu/drm/evdi/evdi_gem.c:273:3: note: did you mean 'kunmap'? include/linux/highmem.h:147:20: note: 'kunmap' declared here static inline void kunmap(struct page *page) ^ 1 warning and 3 errors generated. vim +/vmap +252 drivers/gpu/drm/evdi/evdi_gem.c 3e21cedd503fab Aleksander Miera 2018-03-15 226 3e21cedd503fab Aleksander Miera 2018-03-15 227 int evdi_gem_vmap(struct evdi_gem_object *obj) 3e21cedd503fab Aleksander Miera 2018-03-15 228 { 3e21cedd503fab Aleksander Miera 2018-03-15 229 int page_count = obj->base.size / PAGE_SIZE; 3e21cedd503fab Aleksander Miera 2018-03-15 230 int ret; 3e21cedd503fab Aleksander Miera 2018-03-15 231 3e21cedd503fab Aleksander Miera 2018-03-15 232 if (obj->base.import_attach) { 5d42c7b3d93d6c Sean Paul 2021-04-09 233 #if KERNEL_VERSION(5, 11, 0) <= LINUX_VERSION_CODE 5d42c7b3d93d6c Sean Paul 2021-04-09 234 struct dma_buf_map map; 5d42c7b3d93d6c Sean Paul 2021-04-09 235 5d42c7b3d93d6c Sean Paul 2021-04-09 236 ret = dma_buf_vmap(obj->base.import_attach->dmabuf, &map); 5d42c7b3d93d6c Sean Paul 2021-04-09 237 if (ret) 5d42c7b3d93d6c Sean Paul 2021-04-09 238 return -ENOMEM; 5d42c7b3d93d6c Sean Paul 2021-04-09 239 obj->vmapping = map.vaddr; 5d42c7b3d93d6c Sean Paul 2021-04-09 240 #else 3e21cedd503fab Aleksander Miera 2018-03-15 @241 obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf); 3e21cedd503fab Aleksander Miera 2018-03-15 242 if (!obj->vmapping) 3e21cedd503fab Aleksander Miera 2018-03-15 243 return -ENOMEM; 5d42c7b3d93d6c Sean Paul 2021-04-09 244 #endif 3e21cedd503fab Aleksander Miera 2018-03-15 245 return 0; 3e21cedd503fab Aleksander Miera 2018-03-15 246 } 3e21cedd503fab Aleksander Miera 2018-03-15 247 67442e0531eb83 Guenter Roeck 2020-11-04 248 ret = evdi_gem_get_pages(obj, GFP_KERNEL); 3e21cedd503fab Aleksander Miera 2018-03-15 249 if (ret) 3e21cedd503fab Aleksander Miera 2018-03-15 250 return ret; 3e21cedd503fab Aleksander Miera 2018-03-15 251 3e21cedd503fab Aleksander Miera 2018-03-15 @252 obj->vmapping = vmap(obj->pages, page_count, 0, PAGE_KERNEL); 3e21cedd503fab Aleksander Miera 2018-03-15 253 if (!obj->vmapping) 3e21cedd503fab Aleksander Miera 2018-03-15 254 return -ENOMEM; 3e21cedd503fab Aleksander Miera 2018-03-15 255 return 0; 3e21cedd503fab Aleksander Miera 2018-03-15 256 } 3e21cedd503fab Aleksander Miera 2018-03-15 257 3e21cedd503fab Aleksander Miera 2018-03-15 258 void evdi_gem_vunmap(struct evdi_gem_object *obj) 3e21cedd503fab Aleksander Miera 2018-03-15 259 { 3e21cedd503fab Aleksander Miera 2018-03-15 260 if (obj->base.import_attach) { 5d42c7b3d93d6c Sean Paul 2021-04-09 261 #if KERNEL_VERSION(5, 11, 0) <= LINUX_VERSION_CODE 5d42c7b3d93d6c Sean Paul 2021-04-09 262 struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(obj->vmapping); 5d42c7b3d93d6c Sean Paul 2021-04-09 263 5d42c7b3d93d6c Sean Paul 2021-04-09 264 dma_buf_vunmap(obj->base.import_attach->dmabuf, &map); 5d42c7b3d93d6c Sean Paul 2021-04-09 265 #else 3e21cedd503fab Aleksander Miera 2018-03-15 266 dma_buf_vunmap(obj->base.import_attach->dmabuf, obj->vmapping); 5d42c7b3d93d6c Sean Paul 2021-04-09 267 #endif 3e21cedd503fab Aleksander Miera 2018-03-15 268 obj->vmapping = NULL; 3e21cedd503fab Aleksander Miera 2018-03-15 269 return; 3e21cedd503fab Aleksander Miera 2018-03-15 270 } 3e21cedd503fab Aleksander Miera 2018-03-15 271 3e21cedd503fab Aleksander Miera 2018-03-15 272 if (obj->vmapping) { 3e21cedd503fab Aleksander Miera 2018-03-15 @273 vunmap(obj->vmapping); 3e21cedd503fab Aleksander Miera 2018-03-15 274 obj->vmapping = NULL; 3e21cedd503fab Aleksander Miera 2018-03-15 275 } 3e21cedd503fab Aleksander Miera 2018-03-15 276 3e21cedd503fab Aleksander Miera 2018-03-15 277 evdi_gem_put_pages(obj); 3e21cedd503fab Aleksander Miera 2018-03-15 278 } 3e21cedd503fab Aleksander Miera 2018-03-15 279 :::::: The code at line 252 was first introduced by commit :::::: 3e21cedd503fabd195cf407652bf87fd83e202ac drm/evdi: Add atomic evdi drm module :::::: TO: Aleksander Miera <aleksander.miera(a)displaylink.com&gt; :::::: CC: Guenter Roeck <groeck(a)chromium.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org