linux-kernel - include/linux/compiler_types.h:354:38: error: call to '__compiletime_assert_282' declared with attribute error: FIELD

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Message-ID: <202311060135.Q9eMnpCL-lkp@intel.com>
Date:   Mon, 6 Nov 2023 01:27:57 +0800
From:   kernel test robot <lkp@...el.com>
To:     Amelie Delaunay <amelie.delaunay@...s.st.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Vinod Koul <vkoul@...nel.org>
Subject: include/linux/compiler_types.h:354:38: error: call to
 '__compiletime_assert_282' declared with attribute error: FIELD_PREP: value
 too large for the field

Hi Amelie,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1c41041124bd14dd6610da256a3da4e5b74ce6b1
commit: 1c32d6c37cc2a037e447e73f919d57e89ef4b571 dmaengine: stm32-dma: use bitfield helpers
date:   1 year, 2 months ago
config: i386-buildonly-randconfig-004-20231010 (https://download.01.org/0day-ci/archive/20231106/202311060135.Q9eMnpCL-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/20231106/202311060135.Q9eMnpCL-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/202311060135.Q9eMnpCL-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:0:0:
   drivers/dma/stm32-dma.c: In function 'stm32_dma_prep_dma_memcpy':
>> include/linux/compiler_types.h:354:38: error: call to '__compiletime_assert_282' declared with attribute error: FIELD_PREP: value too large for the field
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/compiler_types.h:335:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler_types.h:354:2: 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:68:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?  \
      ^~~~~~~~~~~~~~~~
   include/linux/bitfield.h:114:3: note: in expansion of macro '__BF_FIELD_CHECK'
      __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
      ^~~~~~~~~~~~~~~~
   drivers/dma/stm32-dma.c:1237:4: note: in expansion of macro 'FIELD_PREP'
       FIELD_PREP(STM32_DMA_SCR_PBURST_MASK, dma_burst) |
       ^~~~~~~~~~


vim +/__compiletime_assert_282 +354 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  340  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  341  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  342  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  343  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  344  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  345   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  346   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  347   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  348   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  349   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  350   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  351   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  352   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  353  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @354  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  355  

:::::: The code at line 354 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