Hi "Christian, I love your patch! Yet something to improve: [auto build test ERROR on drm-tip/drm-tip] [also build test ERROR on next-20211029] [cannot apply to drm/drm-next drm-intel/for-linux-next drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master airlied/drm-next v5.15-rc7] [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/Christian-K-nig/dma-buf-add-dma_fence_describe-and-dma_resv_describe/20211028-171805 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: hexagon-randconfig-r045-20211031 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d321548c3ce987f4f21350ba1c81fdb5d4354224) 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/80ae7cf414dbdb7fa9f48a46cc1bfa25b0a4fda7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christian-K-nig/dma-buf-add-dma_fence_describe-and-dma_resv_describe/20211028-171805 git checkout 80ae7cf414dbdb7fa9f48a46cc1bfa25b0a4fda7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon 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/dma-buf/dma-fence.c:919:2: error: implicit declaration of function 'seq_printf' [-Werror,-Wimplicit-function-declaration] seq_printf(seq, "%s %s seq %llu %ssignalled\n", ^ 1 error generated. vim +/seq_printf +919 drivers/dma-buf/dma-fence.c 909 910 /** 911 * dma_fence_describe - Dump fence describtion into seq_file 912 * @fence: the 6fence to describe 913 * @seq: the seq_file to put the textual description into 914 * 915 * Dump a textual description of the fence and it's state into the seq_file. 916 */ 917 void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq) 918 { > 919 seq_printf(seq, "%s %s seq %llu %ssignalled\n", 920 fence->ops->get_driver_name(fence), 921 fence->ops->get_timeline_name(fence), fence->seqno, 922 dma_fence_is_signaled(fence) ? "" : "un"); 923 } 924 EXPORT_SYMBOL(dma_fence_describe); 925 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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