From: kernel test robot <lkp@intel.com>
To: Wilfred Mallawa <wilfred.opensource@gmail.com>,
Carlos Maiolino <cem@kernel.org>,
"Darrick J . Wong" <djwong@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-xfs@vger.kernel.org,
linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Wilfred Mallawa <wilfred.mallawa@wdc.com>
Subject: Re: [PATCH] xfs: add static size checks for structures in xfs_fs.h
Date: Fri, 6 Feb 2026 17:39:54 +0800 [thread overview]
Message-ID: <202602061752.Okg2N6tw-lkp@intel.com> (raw)
In-Reply-To: <20260206030557.1201204-2-wilfred.opensource@gmail.com>
Hi Wilfred,
kernel test robot noticed the following build errors:
[auto build test ERROR on xfs-linux/for-next]
[also build test ERROR on linus/master v6.19-rc8 next-20260205]
[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/Wilfred-Mallawa/xfs-add-static-size-checks-for-structures-in-xfs_fs-h/20260206-111013
base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
patch link: https://lore.kernel.org/r/20260206030557.1201204-2-wilfred.opensource%40gmail.com
patch subject: [PATCH] xfs: add static size checks for structures in xfs_fs.h
config: m68k-hp300_defconfig (https://download.01.org/0day-ci/archive/20260206/202602061752.Okg2N6tw-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260206/202602061752.Okg2N6tw-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602061752.Okg2N6tw-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/semaphore.h:11,
from fs/xfs/xfs_platform.h:11,
from fs/xfs/xfs_super.c:7:
fs/xfs/libxfs/xfs_ondisk.h: In function 'xfs_check_ondisk_structs':
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_flock64) is wrong, expected 48"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:230:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
230 | XFS_CHECK_STRUCT_SIZE(struct xfs_flock64, 48);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_fsop_geom_v1) is wrong, expected 112"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:231:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
231 | XFS_CHECK_STRUCT_SIZE(struct xfs_fsop_geom_v1, 112);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(xfs_growfs_data_t) is wrong, expected 16"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:236:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
236 | XFS_CHECK_STRUCT_SIZE(xfs_growfs_data_t, 16);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(xfs_growfs_rt_t) is wrong, expected 16"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:238:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
238 | XFS_CHECK_STRUCT_SIZE(xfs_growfs_rt_t, 16);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_inogrp) is wrong, expected 24"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
fs/xfs/libxfs/xfs_ondisk.h:239:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
239 | XFS_CHECK_STRUCT_SIZE(struct xfs_inogrp, 24);
| ^~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/semaphore.h:11,
from xfs_platform.h:11,
from xfs_super.c:7:
././libxfs/xfs_ondisk.h: In function 'xfs_check_ondisk_structs':
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_flock64) is wrong, expected 48"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:230:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
230 | XFS_CHECK_STRUCT_SIZE(struct xfs_flock64, 48);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_fsop_geom_v1) is wrong, expected 112"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:231:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
231 | XFS_CHECK_STRUCT_SIZE(struct xfs_fsop_geom_v1, 112);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(xfs_growfs_data_t) is wrong, expected 16"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:236:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
236 | XFS_CHECK_STRUCT_SIZE(xfs_growfs_data_t, 16);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(xfs_growfs_rt_t) is wrong, expected 16"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:238:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
238 | XFS_CHECK_STRUCT_SIZE(xfs_growfs_rt_t, 16);
| ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_inogrp) is wrong, expected 24"
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:10:9: note: in expansion of macro 'static_assert'
10 | static_assert(sizeof(structname) == (size), \
| ^~~~~~~~~~~~~
././libxfs/xfs_ondisk.h:239:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE'
239 | XFS_CHECK_STRUCT_SIZE(struct xfs_inogrp, 24);
| ^~~~~~~~~~~~~~~~~~~~~
vim +78 include/linux/build_bug.h
bc6245e5efd70c Ian Abbott 2017-07-10 60
6bab69c65013be Rasmus Villemoes 2019-03-07 61 /**
6bab69c65013be Rasmus Villemoes 2019-03-07 62 * static_assert - check integer constant expression at build time
6bab69c65013be Rasmus Villemoes 2019-03-07 63 *
6bab69c65013be Rasmus Villemoes 2019-03-07 64 * static_assert() is a wrapper for the C11 _Static_assert, with a
6bab69c65013be Rasmus Villemoes 2019-03-07 65 * little macro magic to make the message optional (defaulting to the
6bab69c65013be Rasmus Villemoes 2019-03-07 66 * stringification of the tested expression).
6bab69c65013be Rasmus Villemoes 2019-03-07 67 *
6bab69c65013be Rasmus Villemoes 2019-03-07 68 * Contrary to BUILD_BUG_ON(), static_assert() can be used at global
6bab69c65013be Rasmus Villemoes 2019-03-07 69 * scope, but requires the expression to be an integer constant
6bab69c65013be Rasmus Villemoes 2019-03-07 70 * expression (i.e., it is not enough that __builtin_constant_p() is
6bab69c65013be Rasmus Villemoes 2019-03-07 71 * true for expr).
6bab69c65013be Rasmus Villemoes 2019-03-07 72 *
6bab69c65013be Rasmus Villemoes 2019-03-07 73 * Also note that BUILD_BUG_ON() fails the build if the condition is
6bab69c65013be Rasmus Villemoes 2019-03-07 74 * true, while static_assert() fails the build if the expression is
6bab69c65013be Rasmus Villemoes 2019-03-07 75 * false.
6bab69c65013be Rasmus Villemoes 2019-03-07 76 */
6bab69c65013be Rasmus Villemoes 2019-03-07 77 #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
6bab69c65013be Rasmus Villemoes 2019-03-07 @78 #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
6bab69c65013be Rasmus Villemoes 2019-03-07 79
07a368b3f55a79 Maxim Levitsky 2022-10-25 80
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-02-06 9:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-06 3:05 [PATCH] xfs: add static size checks for structures in xfs_fs.h Wilfred Mallawa
2026-02-06 6:08 ` Christoph Hellwig
2026-02-09 7:04 ` Wilfred Mallawa
2026-02-09 14:47 ` hch
2026-02-10 5:59 ` Wilfred Mallawa
2026-02-06 9:39 ` kernel test robot [this message]
2026-02-06 11:02 ` kernel test robot
2026-02-06 18:03 ` kernel test robot
2026-02-06 22:27 ` Dave Chinner
2026-02-09 6:57 ` Wilfred Mallawa
2026-02-09 14:41 ` Christoph Hellwig
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