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Wong" Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Christoph Hellwig Subject: include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_attr_sf_entry) is wrong, expected 3" Message-ID: <202502090624.WfIB0TP5-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Darrick, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8f6629c004b193d23612641c3607e785819e97ab commit: 13877bc79d81354c53e91f3c86ac0f7bafe3ba7b xfs: port ondisk structure checks from xfs/122 to the kernel date: 3 months ago config: arm-randconfig-002-20250207 (https://download.01.org/0day-ci/archive/20250209/202502090624.WfIB0TP5-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090624.WfIB0TP5-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202502090624.WfIB0TP5-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/bitfield.h:10, from include/linux/fortify-string.h:5, from include/linux/string.h:390, from include/linux/uuid.h:11, from fs/xfs/xfs_linux.h:10, from fs/xfs/xfs.h:26, 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_attr_sf_entry) is wrong, expected 3" 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:133:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE' 133 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr_sf_entry, 3); | ^~~~~~~~~~~~~~~~~~~~~ >> include/linux/build_bug.h:78:41: error: static assertion failed: "XFS: sizeof(struct xfs_dir2_data_unused) is wrong, expected 6" 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:136:9: note: in expansion of macro 'XFS_CHECK_STRUCT_SIZE' 136 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir2_data_unused, 6); | ^~~~~~~~~~~~~~~~~~~~~ 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 :::::: The code at line 78 was first introduced by commit :::::: 6bab69c65013bed5fce9f101a64a84d0385b3946 build_bug.h: add wrapper for _Static_assert :::::: TO: Rasmus Villemoes :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki