linux-kernel - [alobakin:bitops 7/7] include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_190' declared with attribute error: BUILD_BUG_ON failed: !__builtin_constant

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Date:   Sat, 18 Jun 2022 11:47:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Alexander Lobakin <alexandr.lobakin@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [alobakin:bitops 7/7] include/linux/compiler_types.h:352:45: error:
 call to '__compiletime_assert_190' declared with attribute error:
 BUILD_BUG_ON failed: !__builtin_constant_p(res)

tree:   https://github.com/alobakin/linux bitops
head:   9bd39b17ce49d350eed93a031e0da6389067013e
commit: 9bd39b17ce49d350eed93a031e0da6389067013e [7/7] lib: test_bitmap: add compile-time optimization/evaluations assertions
config: arc-randconfig-r011-20220618 (https://download.01.org/0day-ci/archive/20220618/202206181146.iHEyLl9X-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/alobakin/linux/commit/9bd39b17ce49d350eed93a031e0da6389067013e
        git remote add alobakin https://github.com/alobakin/linux
        git fetch --no-tags alobakin bitops
        git checkout 9bd39b17ce49d350eed93a031e0da6389067013e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   lib/test_bitmap.c: In function 'test_bitmap_const_eval':
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_190' declared with attribute error: BUILD_BUG_ON failed: !__builtin_constant_p(res)
     352 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:333:25: note: in definition of macro '__compiletime_assert'
     333 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:352:9: note: in expansion of macro '_compiletime_assert'
     352 |         _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)
         |         ^~~~~~~~~~~~~~~~
   lib/test_bitmap.c:904:9: note: in expansion of macro 'BUILD_BUG_ON'
     904 |         BUILD_BUG_ON(!__builtin_constant_p(res));
         |         ^~~~~~~~~~~~


vim +/__compiletime_assert_190 +352 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  338  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  339  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  340  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  341  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  342  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  343   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  344   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  345   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  346   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  347   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  348   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  349   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  350   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  351  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @352  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  353  

:::::: The code at line 352 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

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

-- 
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