[axboe-block:for-6.15/io_uring-reg-vec 5/12] include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_361' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct bio_vec) > sizeof(struct iovec)

[axboe-block:for-6.15/io_uring-reg-vec 5/12] include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_361' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct bio_vec) > sizeof(struct iovec)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-6.15/io_uring-reg-vec
head:   dbc5b236b665e61bc206055f8a6d45766fbec974
commit: 0b9406095d9d362ec0113e645380ac15302cd43c [5/12] io_uring: add infra for importing vectored reg buffers
config: arm-randconfig-002-20250306 (https://download.01.org/0day-ci/archive/20250307/202503070113.6HxKAS8W-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250307/202503070113.6HxKAS8W-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/202503070113.6HxKAS8W-lkp@intel.com/

All errors (new ones prefixed by >>):

   io_uring/rsrc.c: In function 'io_vec_fill_bvec':
   io_uring/rsrc.c:1305:32: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1305 |                 u64 buf_addr = (u64)iovec[iov_idx].iov_base;
         |                                ^
   In file included from <command-line>:
   io_uring/rsrc.c: In function 'io_vec_free':
>> include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_361' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct bio_vec) > sizeof(struct iovec)
     542 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:523:25: note: in definition of macro '__compiletime_assert'
     523 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:542:9: note: in expansion of macro '_compiletime_assert'
     542 |         _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)
         |         ^~~~~~~~~~~~~~~~
   io_uring/rsrc.c:1266:9: note: in expansion of macro 'BUILD_BUG_ON'
    1266 |         BUILD_BUG_ON(sizeof(struct bio_vec) > sizeof(struct iovec));
         |         ^~~~~~~~~~~~
   In function 'io_vec_free',
       inlined from 'io_vec_realloc' at io_uring/rsrc.c:1284:2:
>> include/linux/compiler_types.h:542:45: error: call to '__compiletime_assert_361' declared with attribute error: BUILD_BUG_ON failed: sizeof(struct bio_vec) > sizeof(struct iovec)
     542 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:523:25: note: in definition of macro '__compiletime_assert'
     523 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:542:9: note: in expansion of macro '_compiletime_assert'
     542 |         _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)
         |         ^~~~~~~~~~~~~~~~
   io_uring/rsrc.c:1266:9: note: in expansion of macro 'BUILD_BUG_ON'
    1266 |         BUILD_BUG_ON(sizeof(struct bio_vec) > sizeof(struct iovec));
         |         ^~~~~~~~~~~~


vim +/__compiletime_assert_361 +542 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  528  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  529  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  530  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  531  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  532  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  533   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  534   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  535   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  536   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  537   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  538   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  539   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  540   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  541  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @542  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  543  

:::::: The code at line 542 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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