Hi Jonas, On Sun, May 26, 2019 at 2:59 PM kbuild test robot <lkp@xxxxxxxxx> wrote: > > tree: https://github.com/Kwiboo/linux-rockchip rockchip-5.1-v4l2-from-5.3-v5.1.5 > head: 478d6e4e03edc3c39e4e9096777533a65b2714d6 > commit: d86645f8d79fcc8209e0ec9367a9170e51900938 [77/88] videobuf2/videobuf2-dma-sg.c: convert to use vm_map_pages() > config: x86_64-randconfig-i1-05231812 (attached as .config) > compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 > reproduce: > git checkout d86645f8d79fcc8209e0ec9367a9170e51900938 > # save the attached .config to linux build tree > make ARCH=x86_64 > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_mmap': > >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:338:8: error: implicit declaration of function 'vm_map_pages' [-Werror=implicit-function-declaration] > err = vm_map_pages(vma, buf->pages, buf->num_pages); > ^~~~~~~~~~~~ > cc1: some warnings being treated as errors Same here. Looking into https://github.com/Kwiboo/linux-rockchip/blob/rockchip-5.1-v4l2-from-5.3-v5.1.5/mm/memory.c vm_map_pages() API is missing which is merged into 5.2-rc1. Is the below patch merged into https://github.com/Kwiboo/linux-rockchip ? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.2-rc1&id=a667d7456f189e3422725dddcd067537feac49c0 > > vim +/vm_map_pages +338 drivers/media/common/videobuf2/videobuf2-dma-sg.c > > 327 > 328 static int vb2_dma_sg_mmap(void *buf_priv, struct vm_area_struct *vma) > 329 { > 330 struct vb2_dma_sg_buf *buf = buf_priv; > 331 int err; > 332 > 333 if (!buf) { > 334 printk(KERN_ERR "No memory to map\n"); > 335 return -EINVAL; > 336 } > 337 > > 338 err = vm_map_pages(vma, buf->pages, buf->num_pages); > 339 if (err) { > 340 printk(KERN_ERR "Remapping memory, error: %d\n", err); > 341 return err; > 342 } > 343 > 344 /* > 345 * Use common vm_area operations to track buffer refcount. > 346 */ > 347 vma->vm_private_data = &buf->handler; > 348 vma->vm_ops = &vb2_common_vm_ops; > 349 > 350 vma->vm_ops->open(vma); > 351 > 352 return 0; > 353 } > 354 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
