linux-ext4 - Re: [PATCH 11/11] ext4: fast-commit recovery path changes

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Message-ID: <201907230519.FTcCEAVK%lkp@intel.com>
Date:   Tue, 23 Jul 2019 05:34:47 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Harshad Shirwadkar <harshadshirwadkar@...il.com>
Cc:     kbuild-all@...org, linux-ext4@...r.kernel.org,
        Harshad Shirwadkar <harshadshirwadkar@...il.com>
Subject: Re: [PATCH 11/11] ext4: fast-commit recovery path changes

Hi Harshad,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc1 next-20190722]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Harshad-Shirwadkar/ext4-add-handling-for-extended-mount-options/20190723-001855
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/byteorder/big_endian.h:5:0,
                    from arch/mips/include/uapi/asm/byteorder.h:13,
                    from arch/mips/include/asm/bitops.h:19,
                    from include/linux/bitops.h:19,
                    from include/linux/kernel.h:12,
                    from include/linux/list.h:9,
                    from include/linux/module.h:9,
                    from fs/ext4/super.c:20:
   fs/ext4/super.c: In function 'ext4_fc_add_block':
>> include/uapi/linux/byteorder/big_endian.h:33:26: warning: large integer implicitly truncated to unsigned type [-Woverflow]
    #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
                             ^
   include/linux/byteorder/generic.h:88:21: note: in expansion of macro '__cpu_to_le32'
    #define cpu_to_le32 __cpu_to_le32
                        ^~~~~~~~~~~~~
>> fs/ext4/super.c:430:14: note: in expansion of macro 'cpu_to_le32'
     ex.ee_len = cpu_to_le32(0x1);
                 ^~~~~~~~~~~

vim +/cpu_to_le32 +430 fs/ext4/super.c

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