include/linux/compiler_types.h:631:38: error: call to '__compiletime_assert_344' declared with attribute error: BUILD_BUG_ON failed: len % sizeof(u64_stats_t)
From: kernel test robot
Date: Fri Oct 09 2026 - 09:31:22 EST
Hi David,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: af32da41b0327b9c6a37856ba82b6760d6c8d10e
commit: 35710f0db8011e7ebbfb5b929a0575c3a09b761d macsec: fix memcpy with u64_stats
date: 9 months ago
config: parisc-randconfig-r2309-20261009 (https://download.01.org/0day-ci/archive/20261009/202610091513.YHtzM9fw-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 9.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261009/202610091513.YHtzM9fw-lkp@xxxxxxxxx/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
| Fixes: 35710f0db801 ("macsec: fix memcpy with u64_stats")
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610091513.YHtzM9fw-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
In file included from <command-line>:
include/linux/u64_stats_sync.h: In function 'u64_stats_copy.part.0':
>> include/linux/compiler_types.h:631:38: error: call to '__compiletime_assert_344' declared with attribute error: BUILD_BUG_ON failed: len % sizeof(u64_stats_t)
631 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:612:4: note: in definition of macro '__compiletime_assert'
612 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:631:2: note: in expansion of macro '_compiletime_assert'
631 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^~~~~~~~~~~~~~~~
include/linux/u64_stats_sync.h:134:2: note: in expansion of macro 'BUILD_BUG_ON'
134 | BUILD_BUG_ON(len % sizeof(u64_stats_t));
| ^~~~~~~~~~~~
vim +/__compiletime_assert_344 +631 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 617
eb5c2d4b45e3d2 Will Deacon 2020-07-21 618 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 619 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 620
eb5c2d4b45e3d2 Will Deacon 2020-07-21 621 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 622 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 623 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 624 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 625 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 626 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 627 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 628 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 629 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 630 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @631 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 632
:::::: The code at line 631 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
:::::: TO: Will Deacon <will@xxxxxxxxxx>
:::::: CC: Will Deacon <will@xxxxxxxxxx>
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