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From: kbuild test robot <lkp@intel.com>
To: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: kbuild-all@lists.01.org, darrick.wong@oracle.com,
	linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	vincenzo.frascino@arm.com
Subject: Re: [PATCH] xfs: Fix xfs_dir2_sf_entry_t size check
Date: Sun, 12 Jan 2020 08:44:57 +0800	[thread overview]
Message-ID: <202001120813.Jgl7Tryt%lkp@intel.com> (raw)
In-Reply-To: <20200109141459.21808-1-vincenzo.frascino@arm.com>

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Hi Vincenzo,

I love your patch! Yet something to improve:

[auto build test ERROR on xfs-linux/for-next]
[also build test ERROR on djwong-xfs/djwong-devel v5.5-rc5 next-20200110]
[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 https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Vincenzo-Frascino/xfs-Fix-xfs_dir2_sf_entry_t-size-check/20200110-144608
base:   https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
config: x86_64-lkp (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/string.h:6:0,
                    from include/linux/uuid.h:12,
                    from fs/xfs/xfs_linux.h:10,
                    from fs/xfs/xfs.h:22,
                    from fs/xfs/xfs_super.c:7:
   In function 'xfs_check_ondisk_structs',
       inlined from 'init_xfs_fs' at fs/xfs/xfs_super.c:2025:2:
>> include/linux/compiler.h:350:38: error: call to '__compiletime_assert_107' declared with attribute error: XFS: sizeof(xfs_dir2_sf_entry_t) is wrong, expected 4
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:331:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   fs/xfs/xfs_ondisk.h:10:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(sizeof(structname) != (size), "XFS: sizeof(" \
     ^~~~~~~~~~~~~~~~
   fs/xfs/xfs_ondisk.h:107:2: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
     XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_entry_t,  4);
     ^~~~~~~~~~~~~~~~~~~~~
--
   In file included from include/linux/string.h:6:0,
                    from include/linux/uuid.h:12,
                    from fs//xfs/xfs_linux.h:10,
                    from fs//xfs/xfs.h:22,
                    from fs//xfs/xfs_super.c:7:
   In function 'xfs_check_ondisk_structs',
       inlined from 'init_xfs_fs' at fs//xfs/xfs_super.c:2025:2:
>> include/linux/compiler.h:350:38: error: call to '__compiletime_assert_107' declared with attribute error: XFS: sizeof(xfs_dir2_sf_entry_t) is wrong, expected 4
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:331:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   fs//xfs/xfs_ondisk.h:10:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(sizeof(structname) != (size), "XFS: sizeof(" \
     ^~~~~~~~~~~~~~~~
   fs//xfs/xfs_ondisk.h:107:2: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
     XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_entry_t,  4);
     ^~~~~~~~~~~~~~~~~~~~~

vim +/__compiletime_assert_107 +350 include/linux/compiler.h

9a8ab1c39970a4 Daniel Santos 2013-02-21  336  
9a8ab1c39970a4 Daniel Santos 2013-02-21  337  #define _compiletime_assert(condition, msg, prefix, suffix) \
9a8ab1c39970a4 Daniel Santos 2013-02-21  338  	__compiletime_assert(condition, msg, prefix, suffix)
9a8ab1c39970a4 Daniel Santos 2013-02-21  339  
9a8ab1c39970a4 Daniel Santos 2013-02-21  340  /**
9a8ab1c39970a4 Daniel Santos 2013-02-21  341   * compiletime_assert - break build and emit msg if condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21  342   * @condition: a compile-time constant condition to check
9a8ab1c39970a4 Daniel Santos 2013-02-21  343   * @msg:       a message to emit if condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21  344   *
9a8ab1c39970a4 Daniel Santos 2013-02-21  345   * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c39970a4 Daniel Santos 2013-02-21  346   * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c39970a4 Daniel Santos 2013-02-21  347   * compiler has support to do so.
9a8ab1c39970a4 Daniel Santos 2013-02-21  348   */
9a8ab1c39970a4 Daniel Santos 2013-02-21  349  #define compiletime_assert(condition, msg) \
9a8ab1c39970a4 Daniel Santos 2013-02-21 @350  	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c39970a4 Daniel Santos 2013-02-21  351  

:::::: The code at line 350 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG

:::::: TO: Daniel Santos <daniel.santos@pobox.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation

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      parent reply	other threads:[~2020-01-12  0:45 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-09 14:14 [PATCH] xfs: Fix xfs_dir2_sf_entry_t size check Vincenzo Frascino
2020-01-09 15:01 ` Eric Sandeen
2020-01-09 15:35   ` Vincenzo Frascino
2020-01-09 16:50     ` Darrick J. Wong
     [not found]       ` <435bcb71-9126-b1f1-3803-4977754b36ff@arm.com>
2020-01-13 13:55         ` Arnd Bergmann
2020-01-13 13:58           ` Christoph Hellwig
2020-01-13 14:06             ` Arnd Bergmann
2020-01-13 17:01               ` Darrick J. Wong
2020-01-13 17:04                 ` Eric Sandeen
2020-01-13 17:26                 ` Vincenzo Frascino
2020-01-13 14:05           ` Vincenzo Frascino
2020-01-12  0:44 ` kbuild test robot [this message]

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