linux-kernel - include/linux/compiler_types.h:542:38: error: call to '__compiletime_assert_331' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct erofs_super

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Message-ID: <202504051202.DS7QIknJ-lkp@intel.com>
Date: Sat, 5 Apr 2025 12:07:00 +0800
From: kernel test robot <lkp@...el.com>
To: Gao Xiang <hsiangkao@...ux.alibaba.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: include/linux/compiler_types.h:542:38: error: call to
 '__compiletime_assert_331' declared with attribute error: BUILD_BUG_ON
 failed: sizeof(struct erofs_super_block) != 128

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9f867ba24d3665d9ac9d9ef1f51844eb4479b291
commit: 61ba89b57905579b6877f921423596f722983c35 erofs: add 48-bit block addressing on-disk support
date:   3 weeks ago
config: arm-randconfig-003-20250405 (https://download.01.org/0day-ci/archive/20250405/202504051202.DS7QIknJ-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250405/202504051202.DS7QIknJ-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504051202.DS7QIknJ-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function 'erofs_check_ondisk_layout_definitions',
       inlined from 'erofs_module_init' at fs/erofs/super.c:849:2:
>> include/linux/compiler_types.h:542:38: error: call to '__compiletime_assert_331' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct erofs_super_block) != 128
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/compiler_types.h:523:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler_types.h:542:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
     ^~~~~~~~~~~~~~~~~~~
   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)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   fs/erofs/erofs_fs.h:445:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(sizeof(struct erofs_super_block) != 128);
     ^~~~~~~~~~~~


vim +/__compiletime_assert_331 +542 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  528  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  529  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  530  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  531  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  532  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  533   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  534   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  535   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  536   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  537   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  538   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  539   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  540   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  541  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @542  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  543  

:::::: The code at line 542 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

:::::: TO: Will Deacon <will@...nel.org>
:::::: CC: Will Deacon <will@...nel.org>

-- 
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