Hi Thomas, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.10-rc3] [cannot apply to next-20201112] [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/Thomas-Zimmermann/drm-Build-fixe... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f8394f232b1eab649ce2df5c5f15b0e528c92091 config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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/23efc78fd2f5e71dabe163eec64d60989... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Thomas-Zimmermann/drm-Build-fixes-for-msm-and-mediatek/20201109-183736 git checkout 23efc78fd2f5e71dabe163eec64d609891160175 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/msm/msm_gpu.h:16, from drivers/gpu/drm/msm/adreno/adreno_gpu.h:15, from drivers/gpu/drm/msm/adreno/adreno_device.c:9: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/msm_gem.h:12, from drivers/gpu/drm/msm/adreno/a6xx_gpu.c:5: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/adreno/a6xx_gpu.c:33:6: warning: no previous prototype for 'a6xx_idle' [-Wmissing-prototypes] 33 | bool a6xx_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring) | ^~~~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.h:10, from drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c:17: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c:579:5: warning: no previous prototype for 'mdp5_crtc_setup_pipeline' [-Wmissing-prototypes] 579 | int mdp5_crtc_setup_pipeline(struct drm_crtc *crtc, | ^~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c:17: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c:297:5: warning: no previous prototype for 'mdp5_disable' [-Wmissing-prototypes] 297 | int mdp5_disable(struct mdp5_kms *mdp5_kms) | ^~~~~~~~~~~~ drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c:317:5: warning: no previous prototype for 'mdp5_enable' [-Wmissing-prototypes] 317 | int mdp5_enable(struct mdp5_kms *mdp5_kms) | ^~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h:15, from drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c:15: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c: In function '_dpu_core_perf_calc_crtc': drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c:113:25: warning: variable 'dpu_cstate' set but not used [-Wunused-but-set-variable] 113 | struct dpu_crtc_state *dpu_cstate; | ^~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:17: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c: In function 'dpu_encoder_virt_mode_set': drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:981:31: warning: variable 'num_dspp' set but not used [-Wunused-but-set-variable] 981 | int num_lm, num_ctl, num_pp, num_dspp; | ^~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:976:30: warning: variable 'topology' set but not used [-Wunused-but-set-variable] 976 | struct msm_display_topology topology; | ^~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c: In function '_dpu_encoder_virt_enable_helper': drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:1099:26: warning: variable 'priv' set but not used [-Wunused-but-set-variable] 1099 | struct msm_drm_private *priv; | ^~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c: In function 'dpu_encoder_virt_disable': drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:1210:18: warning: variable 'dpu_kms' set but not used [-Wunused-but-set-variable] 1210 | struct dpu_kms *dpu_kms; | ^~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h:11, from drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:9: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:122:19: warning: initialized field overwritten [-Woverride-init] 122 | .max_linewidth = 4096, | ^~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:122:19: note: (near initialization for 'sm8250_dpu_caps.max_linewidth') In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:11: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog_format.h:7:23: warning: 'qcom_compressed_supported_formats' defined but not used [-Wunused-const-variable=] 7 | static const uint32_t qcom_compressed_supported_formats[] = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:18: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ In file included from drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:22: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog_format.h:48:23: warning: 'plane_formats_yuv' defined but not used [-Wunused-const-variable=] 48 | static const uint32_t plane_formats_yuv[] = { | ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog_format.h:17:23: warning: 'plane_formats' defined but not used [-Wunused-const-variable=] 17 | static const uint32_t plane_formats[] = { | ^~~~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/msm_drv.c:21: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.c:123:15: warning: no previous prototype for '_msm_ioremap' [-Wmissing-prototypes] 123 | void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, | ^~~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.c:1016:24: error: initialization of 'void * (*)(struct drm_gem_object *)' from incompatible pointer type 'int (*)(struct drm_gem_object *, struct dma_buf_map *)' [-Werror=incompatible-pointer-types] 1016 | .gem_prime_vmap = msm_gem_prime_vmap, | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.c:1016:24: note: (near initialization for 'msm_driver.gem_prime_vmap') drivers/gpu/drm/msm/msm_drv.c:1017:24: error: initialization of 'void (*)(struct drm_gem_object *, void *)' from incompatible pointer type 'void (*)(struct drm_gem_object *, struct dma_buf_map *)' [-Werror=incompatible-pointer-types] 1017 | .gem_prime_vunmap = msm_gem_prime_vunmap, | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.c:1017:24: note: (near initialization for 'msm_driver.gem_prime_vunmap') cc1: some warnings being treated as errors -- In file included from drivers/gpu/drm/msm/msm_fence.c:9: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_fence.c: In function 'msm_fence_context_alloc': drivers/gpu/drm/msm/msm_fence.c:23:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation] 23 | strncpy(fctx->name, name, sizeof(fctx->name)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from drivers/gpu/drm/msm/msm_gem_prime.c:11: 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_drv.h:300:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_gem_prime.c:25:59: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 25 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map) | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_gem_prime.c:25:5: error: conflicting types for 'msm_gem_prime_vmap' 25 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map) | ^~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/msm/msm_gem_prime.c:11: drivers/gpu/drm/msm/msm_drv.h:299:5: note: previous declaration of 'msm_gem_prime_vmap' was here 299 | int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/msm_gem_prime.c: In function 'msm_gem_prime_vmap': drivers/gpu/drm/msm/msm_gem_prime.c:32:2: error: implicit declaration of function 'dma_buf_map_set_vaddr' [-Werror=implicit-function-declaration] 32 | dma_buf_map_set_vaddr(map, vaddr); | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/msm/msm_gem_prime.c: At top level: drivers/gpu/drm/msm/msm_gem_prime.c:37:62: warning: 'struct dma_buf_map' declared inside parameter list will not be visible outside of this definition or declaration 37 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map) | ^~~~~~~~~~~ drivers/gpu/drm/msm/msm_gem_prime.c:37:6: error: conflicting types for 'msm_gem_prime_vunmap' 37 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map) | ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/msm/msm_gem_prime.c:11: drivers/gpu/drm/msm/msm_drv.h:300:6: note: previous declaration of 'msm_gem_prime_vunmap' was here 300 | void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); | ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors .. vim +299 drivers/gpu/drm/msm/msm_drv.h 275 276 int msm_gem_mmap_obj(struct drm_gem_object *obj, 277 struct vm_area_struct *vma); 278 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 279 vm_fault_t msm_gem_fault(struct vm_fault *vmf); 280 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj); 281 int msm_gem_get_iova(struct drm_gem_object *obj, 282 struct msm_gem_address_space *aspace, uint64_t *iova); 283 int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj, 284 struct msm_gem_address_space *aspace, uint64_t *iova, 285 u64 range_start, u64 range_end); 286 int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, 287 struct msm_gem_address_space *aspace, uint64_t *iova); 288 uint64_t msm_gem_iova(struct drm_gem_object *obj, 289 struct msm_gem_address_space *aspace); 290 void msm_gem_unpin_iova(struct drm_gem_object *obj, 291 struct msm_gem_address_space *aspace); 292 struct page **msm_gem_get_pages(struct drm_gem_object *obj); 293 void msm_gem_put_pages(struct drm_gem_object *obj); 294 int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 295 struct drm_mode_create_dumb *args); 296 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 297 uint32_t handle, uint64_t *offset); 298 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj); 300 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); 301 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); 302 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev, 303 struct dma_buf_attachment *attach, struct sg_table *sg); 304 int msm_gem_prime_pin(struct drm_gem_object *obj); 305 void msm_gem_prime_unpin(struct drm_gem_object *obj); 306 void *msm_gem_get_vaddr(struct drm_gem_object *obj); 307 void *msm_gem_get_vaddr_active(struct drm_gem_object *obj); 308 void msm_gem_put_vaddr(struct drm_gem_object *obj); 309 int msm_gem_madvise(struct drm_gem_object *obj, unsigned madv); 310 int msm_gem_sync_object(struct drm_gem_object *obj, 311 struct msm_fence_context *fctx, bool exclusive); 312 void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu); 313 void msm_gem_active_put(struct drm_gem_object *obj); 314 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout); 315 int msm_gem_cpu_fini(struct drm_gem_object *obj); 316 void msm_gem_free_object(struct drm_gem_object *obj); 317 int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file, 318 uint32_t size, uint32_t flags, uint32_t *handle, char *name); 319 struct drm_gem_object *msm_gem_new(struct drm_device *dev, 320 uint32_t size, uint32_t flags); 321 struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev, 322 uint32_t size, uint32_t flags); 323 void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size, 324 uint32_t flags, struct msm_gem_address_space *aspace, 325 struct drm_gem_object **bo, uint64_t *iova); 326 void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size, 327 uint32_t flags, struct msm_gem_address_space *aspace, 328 struct drm_gem_object **bo, uint64_t *iova); 329 void msm_gem_kernel_put(struct drm_gem_object *bo, 330 struct msm_gem_address_space *aspace, bool locked); 331 struct drm_gem_object *msm_gem_import(struct drm_device *dev, 332 struct dma_buf *dmabuf, struct sg_table *sgt); 333 void msm_gem_free_work(struct work_struct *work); 334 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org