[akpm-mm:mm-nonmm-unstable 29/32] include/linux/compiler_types.h:565:39: error: call to '__compiletime_assert___COUNTER__' declared with attribute error: BUILD_BUG_ON failed: FIX_KMAP_SLOTS > PTRS_PER_PTE

[akpm-mm:mm-nonmm-unstable 29/32] include/linux/compiler_types.h:565:39: error: call to '__compiletime_assert___COUNTER__' declared with attribute error: BUILD_BUG_ON failed: FIX_KMAP_SLOTS > PTRS_PER_PTE

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
head:   8172857ac52869c411762ce86802d127b0bb7546
commit: 54594582aa30a31c2596575729000f0a60b0a648 [29/32] compiler_types: remove unnecessary indirection in compiletime_assert()
:::::: branch date: 17 hours ago
:::::: commit date: 17 hours ago
config: arc-randconfig-002-20250609 (https://download.01.org/0day-ci/archive/20250609/202506090419.A0G5I2FK-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250609/202506090419.A0G5I2FK-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/r/202506090419.A0G5I2FK-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   arch/arc/mm/highmem.c: In function 'kmap_init':
>> include/linux/compiler_types.h:565:39: error: call to '__compiletime_assert___COUNTER__' declared with attribute error: BUILD_BUG_ON failed: FIX_KMAP_SLOTS > PTRS_PER_PTE
     565 |  __compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                       ^
   include/linux/compiler_types.h:549:4: note: in definition of macro '__compiletime_assert'
     549 |    prefix ## suffix();    \
         |    ^~~~~~
   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)
         |  ^~~~~~~~~~~~~~~~
   arch/arc/mm/highmem.c:69:2: note: in expansion of macro 'BUILD_BUG_ON'
      69 |  BUILD_BUG_ON(FIX_KMAP_SLOTS > PTRS_PER_PTE);
         |  ^~~~~~~~~~~~


vim +/__compiletime_assert___COUNTER__ +565 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  554  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  555  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  556   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  557   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  558   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  559   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  560   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  561   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  562   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  563   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  564  #define compiletime_assert(condition, msg) \
54594582aa30a3 Tal Zussman 2025-06-07 @565  	__compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  566  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [akpm-mm:mm-nonmm-unstable 29/32] include/linux/compiler_types.h:565:39: error: call to '__compiletime_assert___COUNTER__' declared with attribute error: BUILD_BUG_ON failed: FIX_KMAP_SLOTS > PTRS_PER_PTE

[Andrew Morton]

On Mon, 9 Jun 2025 09:08:54 +0800 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
> head:   8172857ac52869c411762ce86802d127b0bb7546
> commit: 54594582aa30a31c2596575729000f0a60b0a648 [29/32] compiler_types: remove unnecessary indirection in compiletime_assert()
> :::::: branch date: 17 hours ago
> :::::: commit date: 17 hours ago
> config: arc-randconfig-002-20250609 (https://download.01.org/0day-ci/archive/20250609/202506090419.A0G5I2FK-lkp@intel.com/config)
> compiler: arc-linux-gcc (GCC) 10.5.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250609/202506090419.A0G5I2FK-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/r/202506090419.A0G5I2FK-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
>    In file included from <command-line>:
>    arch/arc/mm/highmem.c: In function 'kmap_init':
> >> include/linux/compiler_types.h:565:39: error: call to '__compiletime_assert___COUNTER__' declared with attribute error: BUILD_BUG_ON failed: FIX_KMAP_SLOTS > PTRS_PER_PTE
>      565 |  __compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>          |                                       ^
>    include/linux/compiler_types.h:549:4: note: in definition of macro '__compiletime_assert'
>      549 |    prefix ## suffix();    \
>  

Yes, thanks, this is fragile stuff.  It was a minor cleanup - I'll drop
the patch and shall hide in fear.