Hi Nicholas,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.0-rc6 next-20220919]
[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/Nicholas-Piggin/lib-zstd-build-common-files-separately-for-compress-and-decompress/20220919-200605
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 521a547ced6477c54b4b0cc206000406c221b4d6
config: nios2-randconfig-r026-20220919
compiler: nios2-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/5c841e581c21f9aeb22e008899f84ac275b462a9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Nicholas-Piggin/lib-zstd-build-common-files-separately-for-compress-and-decompress/20220919-200605
        git checkout 5c841e581c21f9aeb22e008899f84ac275b462a9
        # 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=nios2 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> nios2-linux-ld: lib/zstd/decompress/common/debug.o:(.bss+0x0): multiple definition of `g_debuglevel'; lib/zstd/compress/common/debug.o:(.bss+0x0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `FSE_versionNumber':
>> entropy_common.c:(.text+0x5a4): multiple definition of `FSE_versionNumber'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x5a4): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `FSE_isError':
>> entropy_common.c:(.text+0x5ac): multiple definition of `FSE_isError'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x5ac): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `FSE_getErrorName':
>> entropy_common.c:(.text+0x5b8): multiple definition of `FSE_getErrorName'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x5b8): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `HUF_isError':
>> entropy_common.c:(.text+0x5e4): multiple definition of `HUF_isError'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x5e4): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `HUF_getErrorName':
>> entropy_common.c:(.text+0x5f0): multiple definition of `HUF_getErrorName'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x5f0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `FSE_readNCount_bmi2':
>> entropy_common.c:(.text+0x61c): multiple definition of `FSE_readNCount_bmi2'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x61c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `FSE_readNCount':
>> entropy_common.c:(.text+0x63c): multiple definition of `FSE_readNCount'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x63c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `HUF_readStats':
>> entropy_common.c:(.text+0x65c): multiple definition of `HUF_readStats'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x65c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/entropy_common.o: in function `HUF_readStats_wksp':
>> entropy_common.c:(.text+0x6ec): multiple definition of `HUF_readStats_wksp'; lib/zstd/compress/common/entropy_common.o:entropy_common.c:(.text+0x6ec): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/error_private.o: in function `ERR_getErrorString':
>> error_private.c:(.text+0x0): multiple definition of `ERR_getErrorString'; lib/zstd/compress/common/error_private.o:error_private.c:(.text+0x0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_createDTable':
>> fse_decompress.c:(.text+0xad8): multiple definition of `FSE_createDTable'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xad8): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_freeDTable':
>> fse_decompress.c:(.text+0xae0): multiple definition of `FSE_freeDTable'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xae0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_buildDTable_wksp':
>> fse_decompress.c:(.text+0xae4): multiple definition of `FSE_buildDTable_wksp'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xae4): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_buildDTable_rle':
>> fse_decompress.c:(.text+0xb0c): multiple definition of `FSE_buildDTable_rle'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xb0c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_buildDTable_raw':
>> fse_decompress.c:(.text+0xb28): multiple definition of `FSE_buildDTable_raw'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xb28): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_decompress_usingDTable':
>> fse_decompress.c:(.text+0xb70): multiple definition of `FSE_decompress_usingDTable'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xb70): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_decompress_wksp':
>> fse_decompress.c:(.text+0xe50): multiple definition of `FSE_decompress_wksp'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xe50): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/fse_decompress.o: in function `FSE_decompress_wksp_bmi2':
>> fse_decompress.c:(.text+0xe80): multiple definition of `FSE_decompress_wksp_bmi2'; lib/zstd/compress/common/fse_decompress.o:fse_decompress.c:(.text+0xe80): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_versionNumber':
>> zstd_common.c:(.text+0x0): multiple definition of `ZSTD_versionNumber'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_versionString':
   zstd_common.c:(.text+0x8): multiple definition of `ZSTD_versionString'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x8): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_isError':
   zstd_common.c:(.text+0x14): multiple definition of `ZSTD_isError'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x14): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_getErrorName':
   zstd_common.c:(.text+0x20): multiple definition of `ZSTD_getErrorName'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x20): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_getErrorCode':
   zstd_common.c:(.text+0x4c): multiple definition of `ZSTD_getErrorCode'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x4c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_getErrorString':
   zstd_common.c:(.text+0x64): multiple definition of `ZSTD_getErrorString'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x64): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_customMalloc':
   zstd_common.c:(.text+0x7c): multiple definition of `ZSTD_customMalloc'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x7c): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_customCalloc':
   zstd_common.c:(.text+0xb0): multiple definition of `ZSTD_customCalloc'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0xb0): first defined here
   nios2-linux-ld: lib/zstd/decompress/common/zstd_common.o: in function `ZSTD_customFree':
   zstd_common.c:(.text+0x108): multiple definition of `ZSTD_customFree'; lib/zstd/compress/common/zstd_common.o:zstd_common.c:(.text+0x108): first defined here

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp