在 2023/3/18 上午2:07, kernel test robot 写道:
Hi Yinbo,
I love your patch! Yet something to improve:
[auto build test ERROR on broonie-spi/for-next]
[also build test ERROR on robh/for-next krzk-dt/for-next linus/master v6.3-rc2 next-20230317]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230317-163907
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
patch link: https://lore.kernel.org/r/20230317082950.12738-3-zhuyinbo%40loongson.cn
patch subject: [PATCH v2 2/2] spi: loongson: add bus driver for the loongson spi controller
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20230318/202303180159.1qAKqnp9-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/a532955fcee3d37eb4332cea2b868f74ace0bc72
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Yinbo-Zhu/dt-bindings-spi-add-loongson-spi/20230317-163907
git checkout a532955fcee3d37eb4332cea2b868f74ace0bc72
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303180159.1qAKqnp9-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>, old ones prefixed by <<):
ERROR: modpost: "__udivdi3" [drivers/spi/spi-loongson.ko] undefined!
This "__udivdi3" undefined!" ERROR that due to u64 / u32 and not use do_div, I think add following change
that can fix this ERROR.
- div = DIV_ROUND_UP(loongson_spi->clk_rate, hz);
+ div = DIV_ROUND_UP_ULL(loongson_spi->clk_rate, hz);
