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SubjectRe: [PATCH v10 3/4] drm/lsdc: add drm driver for loongson display controller
Hi Sui,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm/drm-next]
[also build test ERROR on robh/for-next v5.17-rc5 next-20220222]
[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/Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220220-225801
base: git://anongit.freedesktop.org/drm/drm drm-next
config: riscv-randconfig-r012-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231909.8x2nM3si-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/0day-ci/linux/commit/3891cda03ed77e66fafaf7cfe075042e13f20173
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220220-225801
git checkout 3891cda03ed77e66fafaf7cfe075042e13f20173
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: ttm_bo_init
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_create) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_bo_put
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_put) in archive drivers/built-in.a
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_object_free) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_tt_init
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(bo_driver_ttm_tt_create) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_tt_fini
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(bo_driver_ttm_tt_destroy) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_bo_move_memcpy
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(bo_driver_move) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_bo_vunmap
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_bo_driver_move_notify) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: drm_gem_ttm_print_info
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_object_funcs) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: drm_gem_ttm_mmap
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_object_funcs) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_bo_eviction_valuable
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(bo_driver) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: drm_gem_ttm_dumb_map_offset
>>> referenced by lsdc_drv.c
>>> gpu/drm/lsdc/lsdc_drv.o:(lsdc_vram_driver_stub) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: ttm_bo_move_to_lru_tail
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_pin) in archive drivers/built-in.a
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_unpin) in archive drivers/built-in.a
>>> referenced by drm_gem_vram_helper.c
>>> gpu/drm/drm_gem_vram_helper.o:(drm_gem_vram_vmap) in archive drivers/built-in.a
>>> referenced 1 more times
..

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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