Re: [PATCH V9 4/5] ASoC: codecs: Aw883xx chip register file, data type file and Kconfig Makefile

[wangweidong . a]

On 09/01/2023 03:00, kernel test robot wrote:
> Hi,

> Thank you for the patch! Yet something to improve:

> [auto build test ERROR on 1f5abbd77e2c1787e74b7c2caffac97def78ba52]

> url:    https://github.com/intel-lab-lkp/linux/commits/wangweidong-a-awinic-com/ASoC-codecs-Add-i2c-and-codec-registration-for-aw883xx-and-their-associated-operation-functions/20230106-113130
> base:   1f5abbd77e2c1787e74b7c2caffac97def78ba52
> patch link:    https://lore.kernel.org/r/20230106032835.141918-5-wangweidong.a%40awinic.com
> patch subject: [PATCH V9 4/5] ASoC: codecs: Aw883xx chip register file, data type file and Kconfig Makefile
> config: arm64-randconfig-r034-20230109
> compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 8d9828ef5aa9688500657d36cd2aefbe12bbd162)
> 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 arm64 cross compiling tool for clang build
>        # apt-get install binutils-aarch64-linux-gnu
>        # https://github.com/intel-lab-lkp/linux/commit/63bed80c0eacb29f78eb53987b34863bafd48cee
>        git remote add linux-review https://github.com/intel-lab-lkp/linux
>        git fetch --no-tags linux-review wangweidong-a-awinic-com/ASoC-codecs-Add-i2c-and-codec-registration-for-aw883xx-and-their-associated-operation-functions/20230106-113130
>        git checkout 63bed80c0eacb29f78eb53987b34863bafd48cee
>        # save the config file
>        mkdir build_dir && cp config build_dir/.config
>        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
>        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 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.lld: error: undefined symbol: crc8_populate_lsb
>   >>> referenced by aw883xx_bin_parse.c:1049 (sound/soc/codecs/aw883xx/aw883xx_bin_parse.c:1049)
>   >>>               vmlinux.o:(aw883xx_dev_load_acf_check)
> --
> >> ld.lld: error: undefined symbol: crc8
>   >>> referenced by aw883xx_bin_parse.c:963 (sound/soc/codecs/aw883xx/aw883xx_bin_parse.c:963)
>   >>>               vmlinux.o:(aw883xx_dev_load_acf_check)
>   >>> referenced by aw883xx_bin_parse.c:1022 (sound/soc/codecs/aw883xx/aw883xx_bin_parse.c:1022)
>   >>>               vmlinux.o:(aw883xx_dev_load_acf_check)
>   >>> did you mean: crc4
>   >>> defined in: vmlinux.o

This looks like a false positive. crc8_populate_lsb is defined in the lib/crc8.c file.
I also could not reproduce it with GCC.

Best regards,
Weidong Wang