include/linux/compiler_types.h:435:45: error: call to '__compiletime_assert_367' declared with attribute error: BUILD_BUG_ON failed: sizeof(*vcpup) > SMP_CACHE_BYTES

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4df7c5fde316820286dfa6d203a1005d7fbe007d
commit: db2832309a82b9acc4b8cc33a1831d36507ec13e x86/xen: fix percpu vcpu_info allocation
date:   10 days ago
config: i386-buildonly-randconfig-002-20230825 (https://download.01.org/0day-ci/archive/20231209/202312090256.cFjQffxG-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/202312090256.cFjQffxG-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/202312090256.cFjQffxG-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function 'xen_vcpu_setup',
       inlined from 'xen_vcpu_setup_restore' at arch/x86/xen/enlighten.c:111:3,
       inlined from 'xen_vcpu_restore' at arch/x86/xen/enlighten.c:141:3:
>> include/linux/compiler_types.h:435:45: error: call to '__compiletime_assert_367' declared with attribute error: BUILD_BUG_ON failed: sizeof(*vcpup) > SMP_CACHE_BYTES
     435 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:416:25: note: in definition of macro '__compiletime_assert'
     416 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:435:9: note: in expansion of macro '_compiletime_assert'
     435 |         _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:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   arch/x86/xen/enlighten.c:166:9: note: in expansion of macro 'BUILD_BUG_ON'
     166 |         BUILD_BUG_ON(sizeof(*vcpup) > SMP_CACHE_BYTES);
         |         ^~~~~~~~~~~~
   arch/x86/xen/enlighten.c: In function 'xen_vcpu_setup':
>> include/linux/compiler_types.h:435:45: error: call to '__compiletime_assert_367' declared with attribute error: BUILD_BUG_ON failed: sizeof(*vcpup) > SMP_CACHE_BYTES
     435 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:416:25: note: in definition of macro '__compiletime_assert'
     416 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:435:9: note: in expansion of macro '_compiletime_assert'
     435 |         _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:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   arch/x86/xen/enlighten.c:166:9: note: in expansion of macro 'BUILD_BUG_ON'
     166 |         BUILD_BUG_ON(sizeof(*vcpup) > SMP_CACHE_BYTES);
         |         ^~~~~~~~~~~~


vim +/__compiletime_assert_367 +435 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  421  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  422  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  423  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  424  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  425  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  426   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  427   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  428   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  429   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  430   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  431   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  432   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  433   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  434  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @435  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  436  

:::::: The code at line 435 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

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

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