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Date:   Sat, 28 Dec 2019 03:36:10 +0800
From:   kbuild test robot <>
To:     Harshad Shirwadkar <>
        Harshad Shirwadkar <>
Subject: Re: [PATCH v4 17/20] ext4: add idempotent helpers to manipulate

Hi Harshad,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/perf/core]
[cannot apply to ext4/dev linus/master v5.5-rc3 next-20191220]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see]

base: ceb9e77324fa661b1001a0ae66f061b5fcb4e4e6
        # apt-get install sparse
        # sparse version: v0.6.1-129-g341daf20-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <>

sparse warnings: (new ones prefixed by >>)

>> fs/ext4/mballoc.c:4781:6: sparse: sparse: symbol 'ext4_free_blocks_simple' was not declared. Should it be static?

Please review and possibly fold the followup patch.

0-DAY kernel test infrastructure                 Open Source Technology Center Intel Corporation

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