linux-kernel - include/linux/compiler_types.h:357:45: error: call to '__compiletime_assert_304' declared with attribute error: BUILD_BUG_ON failed: sizeof(priv

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Date: Sun, 7 Apr 2024 18:57:43 +0800
From: kernel test robot <lkp@...el.com>
To: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Hans Verkuil <hverkuil@...all.nl>,
	Nicolas Dufresne <nicolas.dufresne@...labora.com>
Subject: include/linux/compiler_types.h:357:45: error: call to
 '__compiletime_assert_304' declared with attribute error: BUILD_BUG_ON
 failed: sizeof(priv_tbl->probs) % 16

Hi Andrzej,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f2f80ac809875855ac843f9e5e7480604b5cbff5
commit: 00c47aa85bb26450edc6059c3d245de062e60b5d media: rkvdec: Add required padding
date:   1 year, 5 months ago
config: arm-randconfig-r132-20240407 (https://download.01.org/0day-ci/archive/20240407/202404071853.zF9y90RI-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240407/202404071853.zF9y90RI-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/202404071853.zF9y90RI-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   drivers/staging/media/rkvdec/rkvdec-vp9.c: In function 'rkvdec_vp9_start':
>> include/linux/compiler_types.h:357:45: error: call to '__compiletime_assert_304' declared with attribute error: BUILD_BUG_ON failed: sizeof(priv_tbl->probs) % 16
     357 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:338:25: note: in definition of macro '__compiletime_assert'
     338 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:357:9: note: in expansion of macro '_compiletime_assert'
     357 |         _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)
         |         ^~~~~~~~~~~~~~~~
   drivers/staging/media/rkvdec/rkvdec-vp9.c:1011:9: note: in expansion of macro 'BUILD_BUG_ON'
    1011 |         BUILD_BUG_ON(sizeof(priv_tbl->probs) % 16); /* ensure probs size is 128-bit aligned */
         |         ^~~~~~~~~~~~


vim +/__compiletime_assert_304 +357 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  343  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  344  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  345  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  346  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  347  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  348   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  349   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  350   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  351   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  352   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  353   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  354   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  355   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  356  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @357  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  358  

:::::: The code at line 357 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