Hi Cai, I love your patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [also build test ERROR on linus/master v5.19-rc2 next-20220617] [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/intel-lab-lkp/linux/commits/Cai-Huoqing/drm-Make-drm_buddy-a-part-of-drm-module/20220621-095417 base: git://anongit.freedesktop.org/drm/drm drm-next config: x86_64-rhel-8.3-kunit (https://download.01.org/0day-ci/archive/20220621/202206211209.5H0Eh2ff-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/517d5f44c861a5173eaa9a06efebe2ce2a6601a1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Cai-Huoqing/drm-Make-drm_buddy-a-part-of-drm-module/20220621-095417 git checkout 517d5f44c861a5173eaa9a06efebe2ce2a6601a1 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: drivers/gpu/drm/drm_buddy.o: in function `drm_buddy_print': >> drivers/gpu/drm/drm_buddy.c:745: undefined reference to `drm_printf' >> ld: drivers/gpu/drm/drm_buddy.c:757: undefined reference to `drm_printf' ld: drivers/gpu/drm/drm_buddy.c:763: undefined reference to `drm_printf' ld: drivers/gpu/drm/drm_buddy.c:765: undefined reference to `drm_printf' ld: drivers/gpu/drm/drm_buddy.c:761: undefined reference to `drm_printf' ld: drivers/gpu/drm/drm_buddy.o:drivers/gpu/drm/drm_buddy.c:757: more undefined references to `drm_printf' follow vim +745 drivers/gpu/drm/drm_buddy.c 6387a3c4b0c45a Arunpravin 2022-01-18 734 6387a3c4b0c45a Arunpravin 2022-01-18 735 /** 6387a3c4b0c45a Arunpravin 2022-01-18 736 * drm_buddy_print - print allocator state 6387a3c4b0c45a Arunpravin 2022-01-18 737 * 6387a3c4b0c45a Arunpravin 2022-01-18 738 * @mm: DRM buddy manager 6387a3c4b0c45a Arunpravin 2022-01-18 739 * @p: DRM printer to use 6387a3c4b0c45a Arunpravin 2022-01-18 740 */ 6387a3c4b0c45a Arunpravin 2022-01-18 741 void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p) 6387a3c4b0c45a Arunpravin 2022-01-18 742 { 6387a3c4b0c45a Arunpravin 2022-01-18 743 int order; 6387a3c4b0c45a Arunpravin 2022-01-18 744 6387a3c4b0c45a Arunpravin 2022-01-18 @745 drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB\n", 6387a3c4b0c45a Arunpravin 2022-01-18 746 mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20); 6387a3c4b0c45a Arunpravin 2022-01-18 747 6387a3c4b0c45a Arunpravin 2022-01-18 748 for (order = mm->max_order; order >= 0; order--) { 6387a3c4b0c45a Arunpravin 2022-01-18 749 struct drm_buddy_block *block; 6387a3c4b0c45a Arunpravin 2022-01-18 750 u64 count = 0, free; 6387a3c4b0c45a Arunpravin 2022-01-18 751 6387a3c4b0c45a Arunpravin 2022-01-18 752 list_for_each_entry(block, &mm->free_list[order], link) { 6387a3c4b0c45a Arunpravin 2022-01-18 753 BUG_ON(!drm_buddy_block_is_free(block)); 6387a3c4b0c45a Arunpravin 2022-01-18 754 count++; 6387a3c4b0c45a Arunpravin 2022-01-18 755 } 6387a3c4b0c45a Arunpravin 2022-01-18 756 6387a3c4b0c45a Arunpravin 2022-01-18 @757 drm_printf(p, "order-%d ", order); 6387a3c4b0c45a Arunpravin 2022-01-18 758 6387a3c4b0c45a Arunpravin 2022-01-18 759 free = count * (mm->chunk_size << order); 6387a3c4b0c45a Arunpravin 2022-01-18 760 if (free < SZ_1M) 6387a3c4b0c45a Arunpravin 2022-01-18 761 drm_printf(p, "free: %lluKiB", free >> 10); 6387a3c4b0c45a Arunpravin 2022-01-18 762 else 6387a3c4b0c45a Arunpravin 2022-01-18 763 drm_printf(p, "free: %lluMiB", free >> 20); 6387a3c4b0c45a Arunpravin 2022-01-18 764 6387a3c4b0c45a Arunpravin 2022-01-18 765 drm_printf(p, ", pages: %llu\n", count); 6387a3c4b0c45a Arunpravin 2022-01-18 766 } 6387a3c4b0c45a Arunpravin 2022-01-18 767 } 6387a3c4b0c45a Arunpravin 2022-01-18 768 EXPORT_SYMBOL(drm_buddy_print); 6387a3c4b0c45a Arunpravin 2022-01-18 769 -- 0-DAY CI Kernel Test Service https://01.org/lkp
