linux-kernel - Re: [kbuild-all] Re: [masahiroy:kbuild 9/9] include/linux/byteorder/big_endian.h:8:2: error: #warning inconsistent configuration, needs CONFIG_CPU_BIG

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Message-ID: <cf9f09bc-7fb3-2471-b347-51dd20b1109e@intel.com>
Date:   Wed, 9 Mar 2022 15:16:45 +0800
From:   "Chen, Rong A" <rong.a.chen@...el.com>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Boris Kolpackov <boris@...esynthesis.com>
Subject: Re: [kbuild-all] Re: [masahiroy:kbuild 9/9]
 include/linux/byteorder/big_endian.h:8:2: error: #warning inconsistent
 configuration, needs CONFIG_CPU_BIG_ENDIAN



On 3/6/2022 12:19 AM, Masahiro Yamada wrote:
> On Thu, Mar 3, 2022 at 9:33 PM kernel test robot <lkp@...el.com> wrote:
>>
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kbuild
>> head:   55de8686df7ed2b5237867b130e30c728bbd9db4
>> commit: 55de8686df7ed2b5237867b130e30c728bbd9db4 [9/9] kconfig: change .config format to use =n instead of "is not set"
>> config: arc-randconfig-r005-20220302 (https://download.01.org/0day-ci/archive/20220303/202203032027.8qFpOWlq-lkp@intel.com/config)
>> compiler: arceb-elf-gcc (GCC) 11.2.0
>> 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://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git/commit/?id=55de8686df7ed2b5237867b130e30c728bbd9db4
>>          git remote add masahiroy https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
>>          git fetch --no-tags masahiroy kbuild
>>          git checkout 55de8686df7ed2b5237867b130e30c728bbd9db4
>>          # save the config file to linux build tree
>>          mkdir build_dir
>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash lib/
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@...el.com>
>>
>> All errors (new ones prefixed by >>):
>>
>>     In file included from arch/arc/include/uapi/asm/byteorder.h:14,
>>                      from include/asm-generic/bitops/le.h:6,
>>                      from arch/arc/include/asm/bitops.h:192,
>>                      from include/linux/bitops.h:33,
>>                      from include/linux/log2.h:12,
>>                      from include/asm-generic/div64.h:55,
>>                      from ./arch/arc/include/generated/asm/div64.h:1,
>>                      from include/linux/math.h:5,
>>                      from include/linux/math64.h:6,
>>                      from include/linux/time.h:6,
>>                      from include/linux/stat.h:19,
>>                      from include/linux/module.h:13,
>>                      from lib/test_bitops.c:9:
>>>> include/linux/byteorder/big_endian.h:8:2: error: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Werror=cpp]
>>         8 | #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>>           |  ^~~~~~~
>>     cc1: all warnings being treated as errors
>>
>>
>> vim +8 include/linux/byteorder/big_endian.h
>>
>> ^1da177e4c3f41 Linus Torvalds 2005-04-16   6
>> e9ef073a0796e4 Babu Moger     2017-09-08   7  #ifndef CONFIG_CPU_BIG_ENDIAN
>> e9ef073a0796e4 Babu Moger     2017-09-08  @8  #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
>> e9ef073a0796e4 Babu Moger     2017-09-08   9  #endif
>> e9ef073a0796e4 Babu Moger     2017-09-08  10
>>
>> :::::: The code at line 8 was first introduced by commit
>> :::::: e9ef073a0796e46c24f037237291efe56fc28ad9 include: warn for inconsistent endian config definition
>>
>> :::::: TO: Babu Moger <babu.moger@...cle.com>
>> :::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
>>
>> ---
>> 0-DAY CI Kernel Test Service, Intel Corporation
>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> 
> 
> I cannot reproduce this.
> 
> Maybe, this was a bug in make.cross
> (but already fixed??)
> 
> 
> 

Hi Masahiro,

Sorry for the inconvenience, it's a false positive,
there's a bug in the CI was triggered by this commit.

Best Regards,
Rong Chen