[kvm:queue 23/30] include/linux/compiler_types.h:568:45: error: call to '__compiletime_assert_421' declared with attribute error: BUILD_BUG failed

[kvm:queue 23/30] include/linux/compiler_types.h:568:45: error: call to '__compiletime_assert_421' declared with attribute error: BUILD_BUG failed

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
head:   79150772457f4d45e38b842d786240c36bb1f97f
commit: f562719cc02e3f85fee6daadc8c4bdb6a99132f5 [23/30] KVM: x86: Consult guest_memfd when computing max_mapping_level
config: x86_64-buildonly-randconfig-003-20250614 (https://download.01.org/0day-ci/archive/20250614/202506140912.0npst1Ch-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/20250614/202506140912.0npst1Ch-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/202506140912.0npst1Ch-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function 'kvm_gmem_mapping_order',
       inlined from 'kvm_gmem_max_mapping_level' at arch/x86/kvm/mmu/mmu.c:3302:14,
       inlined from 'kvm_mmu_max_mapping_level' at arch/x86/kvm/mmu/mmu.c:3318:10:
>> include/linux/compiler_types.h:568:45: error: call to '__compiletime_assert_421' declared with attribute error: BUILD_BUG failed
     568 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:549:25: note: in definition of macro '__compiletime_assert'
     549 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:568:9: note: in expansion of macro '_compiletime_assert'
     568 |         _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:59:21: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
         |                     ^~~~~~~~~~~~~~~~
   include/linux/kvm_host.h:2604:9: note: in expansion of macro 'BUILD_BUG'
    2604 |         BUILD_BUG();
         |         ^~~~~~~~~


vim +/__compiletime_assert_421 +568 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  554  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  555  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  556  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  557  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  558  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  559   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  560   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  561   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  562   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  563   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  564   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  565   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  566   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  567  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @568  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  569  

:::::: The code at line 568 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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https://github.com/intel/lkp-tests/wiki