[tip:timers/vdso 4/4] include/linux/compiler_types.h:702:38: error: call to '__compiletime_assert_5' declared with attribute error: BUILD_BUG_ON failed: clock >= BITS_PER_TYPE(msk)

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/vdso
head:   ca46a07c4b68246c4e400ce3649ab7228a878d8f
commit: ca46a07c4b68246c4e400ce3649ab7228a878d8f [4/4] vdso/gettimeofday: Assert that the clockid fits into the u32 bitmask
config: sparc64-randconfig-2001-20260930 (https://download.01.org/0day-ci/archive/20260930/202609300510.Ej5t8KO8-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260930/202609300510.Ej5t8KO8-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/202609300510.Ej5t8KO8-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c: In function '__cvdso_clock_gettime_common':
   arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:288:24: error: implicit declaration of function 'BITS_PER_TYPE'; did you mean 'BITS_PER_LONG'? [-Werror=implicit-function-declaration]
     288 |  BUILD_BUG_ON(clock >= BITS_PER_TYPE(msk));
         |                        ^~~~~~~~~~~~~
   include/linux/compiler_types.h:682:9: note: in definition of macro '__compiletime_assert'
     682 |   if (!(condition))     \
         |         ^~~~~~~~~
   include/linux/compiler_types.h:702:2: note: in expansion of macro '_compiletime_assert'
     702 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |  ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
      40 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:51:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      51 |  BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |  ^~~~~~~~~~~~~~~~
   arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:288:2: note: in expansion of macro 'BUILD_BUG_ON'
     288 |  BUILD_BUG_ON(clock >= BITS_PER_TYPE(msk));
         |  ^~~~~~~~~~~~
   In function '__cvdso_clock_gettime_common',
       inlined from '__vdso_clock_gettime64' at arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:310:7:
>> include/linux/compiler_types.h:702:38: error: call to '__compiletime_assert_5' declared with attribute error: BUILD_BUG_ON failed: clock >= BITS_PER_TYPE(msk)
     702 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                      ^
   include/linux/compiler_types.h:683:4: note: in definition of macro '__compiletime_assert'
     683 |    prefix ## suffix();    \
         |    ^~~~~~
   include/linux/compiler_types.h:702:2: note: in expansion of macro '_compiletime_assert'
     702 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |  ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
      40 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:51:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      51 |  BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |  ^~~~~~~~~~~~~~~~
   arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:288:2: note: in expansion of macro 'BUILD_BUG_ON'
     288 |  BUILD_BUG_ON(clock >= BITS_PER_TYPE(msk));
         |  ^~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/__compiletime_assert_5 +702 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  688  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  689  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  690  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  691  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  692  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  693   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  694   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  695   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  696   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  697   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  698   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  699   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  700   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  701  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @702  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  703  

:::::: The code at line 702 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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