linux-kernel - include/linux/compiler_types.h:346:38: error: call to '__compiletime_assert_412' declared with attribute error: FIELD

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Date: Sat, 3 Feb 2024 16:20:14 +0800
From: kernel test robot <lkp@...el.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>, Alex Shi <alexs@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>
Subject: include/linux/compiler_types.h:346:38: error: call to
 '__compiletime_assert_412' declared with attribute error: FIELD_PREP: mask
 is not constant

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   56897d51886fa7e9f034ff26128eb09f1b811594
commit: e8c07082a810fbb9db303a2b66b66b8d7e588b53 Kbuild: move to -std=gnu11
date:   1 year, 11 months ago
config: x86_64-buildonly-randconfig-002-20240203 (https://download.01.org/0day-ci/archive/20240203/202402031636.ZMuj0En9-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240203/202402031636.ZMuj0En9-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402031636.ZMuj0En9-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:0:0:
   drivers/gpu/drm/i915/gt/uc/intel_guc.c: In function 'intel_guc_send_mmio':
>> include/linux/compiler_types.h:346:38: error: call to '__compiletime_assert_412' declared with attribute error: FIELD_PREP: mask is not constant
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/compiler_types.h:327:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler_types.h:346:2: 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/bitfield.h:62:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),  \
      ^~~~~~~~~~~~~~~~
   include/linux/bitfield.h:111:3: note: in expansion of macro '__BF_FIELD_CHECK'
      __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
      ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/gt/uc/intel_guc.c:430:9: note: in expansion of macro 'FIELD_PREP'
            FIELD_PREP(GUC_HXG_MSG_0_ORIGIN,
            ^~~~~~~~~~


vim +/__compiletime_assert_412 +346 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  332  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  333  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  334  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  335  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  336  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  337   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  338   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  339   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  340   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  341   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  342   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  343   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  344   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  345  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @346  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  347  

:::::: The code at line 346 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>

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