[linux-next:master 7919/9290] include/linux/compiler_types.h:631:38: error: call to '__compiletime_assert_639' declared with attribute error: clamp() low limit pg.start greater than high limit pg.end

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   a0c666c25aeefd16f4b088c6549a6fb6b65a8a1d
commit: 93552c9a3350fff06543da18e4c80d3e804191ca [7919/9290] mm: folio_zero_user: cache neighbouring pages
config: riscv-randconfig-002-20260124 (https://download.01.org/0day-ci/archive/20260124/202601240453.QCjgGdJa-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260124/202601240453.QCjgGdJa-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/202601240453.QCjgGdJa-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/mm.h:18,
                    from arch/riscv/include/asm/sections.h:9,
                    from include/linux/interrupt.h:22,
                    from include/linux/kernel_stat.h:8,
                    from mm/memory.c:42:
   mm/memory.c: In function 'folio_zero_user':
>> include/linux/compiler_types.h:631:38: error: call to '__compiletime_assert_639' declared with attribute error: clamp() low limit pg.start greater than high limit pg.end
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/range.h:46:11: note: in definition of macro 'DEFINE_RANGE'
      .end = (_end),   \
              ^~~~
   include/linux/compiler_types.h:619:2: note: in expansion of macro '__compiletime_assert'
     __compiletime_assert(condition, msg, prefix, suffix)
     ^~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:631:2: 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/minmax.h:188:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(statically_true(ulo > uhi),    \
     ^~~~~~~~~~~~~~~~
   include/linux/minmax.h:195:2: note: in expansion of macro '__clamp_once'
     __clamp_once(type, val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_), __UNIQUE_ID(h_))
     ^~~~~~~~~~~~
   include/linux/minmax.h:218:36: note: in expansion of macro '__careful_clamp'
    #define clamp_t(type, val, lo, hi) __careful_clamp(type, val, lo, hi)
                                       ^~~~~~~~~~~~~~~
   mm/memory.c:7296:8: note: in expansion of macro 'clamp_t'
           clamp_t(s64, fault_idx + radius, pg.start, pg.end));
           ^~~~~~~


vim +/__compiletime_assert_639 +631 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  617  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  618  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  619  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  620  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  621  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  622   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  623   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  624   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  625   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  626   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  627   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  628   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  629   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  630  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @631  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  632  

:::::: The code at line 631 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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