Hi Thomas, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.4-rc5 next-20191029] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-udl-Convert-to-SHMEM/20191030-065855 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 23fdb198ae81f47a574296dab5167c5e136a02ba config: nds32-allyesconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/udl/udl_gem.c: In function 'udl_gem_object_mmap': drivers/gpu/drm/udl/udl_gem.c:41:27: error: passing argument 1 of 'drm_gem_shmem_mmap' from incompatible pointer type [-Werror=incompatible-pointer-types] ret = drm_gem_shmem_mmap(obj, vma); ^~~ In file included from drivers/gpu/drm/udl/udl_gem.c:10: include/drm/drm_gem_shmem_helper.h:146:37: note: expected 'struct file *' but argument is of type 'struct drm_gem_object *' int drm_gem_shmem_mmap(struct file *filp, struct vm_area_struct *vma); ~~~~~~~~~~~~~^~~~ drivers/gpu/drm/udl/udl_gem.c: At top level: drivers/gpu/drm/udl/udl_gem.c:61:3: error: 'const struct drm_gem_object_funcs' has no member named 'mmap'; did you mean 'vmap'? .mmap = udl_gem_object_mmap, ^~~~ vmap >> drivers/gpu/drm/udl/udl_gem.c:61:10: error: initialization of 'const struct vm_operations_struct *' from incompatible pointer type 'int (*)(struct drm_gem_object *, struct vm_area_struct *)' [-Werror=incompatible-pointer-types] .mmap = udl_gem_object_mmap, ^~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/udl/udl_gem.c:61:10: note: (near initialization for 'udl_gem_object_funcs.vm_ops') cc1: some warnings being treated as errors vim +61 drivers/gpu/drm/udl/udl_gem.c 8 9 #include <drm/drm_drv.h> > 10 #include <drm/drm_gem_shmem_helper.h> 11 #include <drm/drm_mode.h> 12 #include <drm/drm_prime.h> 13 14 #include "udl_drv.h" 15 16 /* 17 * GEM object funcs 18 */ 19 20 static void udl_gem_object_free_object(struct drm_gem_object *obj) 21 { 22 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); 23 24 /* Fbdev emulation vmaps the buffer. Unmap it here for consistency 25 * with the original udl GEM code. 26 * 27 * TODO: Switch to generic fbdev emulation and release the 28 * GEM object with drm_gem_shmem_free_object(). 29 */ 30 if (shmem->vaddr) 31 drm_gem_shmem_vunmap(obj, shmem->vaddr); 32 33 drm_gem_shmem_free_object(obj); 34 } 35 36 static int udl_gem_object_mmap(struct drm_gem_object *obj, 37 struct vm_area_struct *vma) 38 { 39 int ret; 40 41 ret = drm_gem_shmem_mmap(obj, vma); 42 if (ret) 43 return ret; 44 45 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); 46 if (obj->import_attach) 47 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); 48 vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); 49 50 return 0; 51 } 52 53 static const struct drm_gem_object_funcs udl_gem_object_funcs = { 54 .free = udl_gem_object_free_object, 55 .print_info = drm_gem_shmem_print_info, 56 .pin = drm_gem_shmem_pin, 57 .unpin = drm_gem_shmem_unpin, 58 .get_sg_table = drm_gem_shmem_get_sg_table, 59 .vmap = drm_gem_shmem_vmap, 60 .vunmap = drm_gem_shmem_vunmap, > 61 .mmap = udl_gem_object_mmap, 62 }; 63 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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