Hi Helen, I love your patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on next-20210324] [cannot apply to v5.12-rc4] [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/Helen-Koike/media-videobuf2-use-dmabuf-size-for-length/20210325-082047 base: git://linuxtv.org/media_tree.git master config: powerpc64-randconfig-r016-20210325 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 5d6b4aa80d6df62b924a12af030c5ded868ee4f1) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://github.com/0day-ci/linux/commit/41e2cea31db8378b33e31785aec668a009d1355b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Helen-Koike/media-videobuf2-use-dmabuf-size-for-length/20210325-082047 git checkout 41e2cea31db8378b33e31785aec668a009d1355b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:631:14: error: use of undeclared identifier 'dmabuf'; did you mean 'dbuf'? buf->size = dmabuf->size; ^~~~~~ dbuf drivers/media/common/videobuf2/videobuf2-dma-sg.c:608:75: note: 'dbuf' declared here static void *vb2_dma_sg_attach_dmabuf(struct device *dev, struct dma_buf *dbuf, ^ 1 error generated. vim +631 drivers/media/common/videobuf2/videobuf2-dma-sg.c 607 608 static void *vb2_dma_sg_attach_dmabuf(struct device *dev, struct dma_buf *dbuf, 609 enum dma_data_direction dma_dir) 610 { 611 struct vb2_dma_sg_buf *buf; 612 struct dma_buf_attachment *dba; 613 614 if (WARN_ON(!dev)) 615 return ERR_PTR(-EINVAL); 616 617 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 618 if (!buf) 619 return ERR_PTR(-ENOMEM); 620 621 buf->dev = dev; 622 /* create attachment for the dmabuf with the user device */ 623 dba = dma_buf_attach(dbuf, buf->dev); 624 if (IS_ERR(dba)) { 625 pr_err("failed to attach dmabuf\n"); 626 kfree(buf); 627 return dba; 628 } 629 630 buf->dma_dir = dma_dir; > 631 buf->size = dmabuf->size; 632 buf->db_attach = dba; 633 634 return buf; 635 } 636 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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