linux-kernel - [andrea-aa:main 22/46] include/linux/compiler_types.h:335:45: error: call to '__compiletime_assert_426' declared with attribute error: BUILD_BUG_ON failed: (long) &mm_check->page_table_lock - (long) &mm_check->mmap_lock < L1_CACHE

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Date:   Tue, 21 Dec 2021 18:46:13 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andrea Arcangeli <aarcange@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [andrea-aa:main 22/46] include/linux/compiler_types.h:335:45: error:
 call to '__compiletime_assert_426' declared with attribute error:
 BUILD_BUG_ON failed: (long) &mm_check->page_table_lock - (long)
 &mm_check->mmap_lock < L1_CACHE_BYTES

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git main
head:   9571e82616c7501d7cc5a590c12e467ed14e31ff
commit: 181520af2b00728d6bb76d98d5a531c7853333b2 [22/46] mm: cacheline alignment for page_table_lock and mmap_lock
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20211221/202112211850.LkEJiilF-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git/commit/?id=181520af2b00728d6bb76d98d5a531c7853333b2
        git remote add andrea-aa https://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git
        git fetch --no-tags andrea-aa main
        git checkout 181520af2b00728d6bb76d98d5a531c7853333b2
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   kernel/fork.c:763:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes]
     763 | void __init __weak arch_task_cache_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~
   In file included from <command-line>:
   kernel/fork.c: In function 'proc_caches_init':
>> include/linux/compiler_types.h:335:45: error: call to '__compiletime_assert_426' declared with attribute error: BUILD_BUG_ON failed: (long) &mm_check->page_table_lock - (long) &mm_check->mmap_lock < L1_CACHE_BYTES
     335 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:316:25: note: in definition of macro '__compiletime_assert'
     316 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:335:9: note: in expansion of macro '_compiletime_assert'
     335 |         _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)
         |         ^~~~~~~~~~~~~~~~
   kernel/fork.c:2938:9: note: in expansion of macro 'BUILD_BUG_ON'
    2938 |         BUILD_BUG_ON((long) &mm_check->page_table_lock -
         |         ^~~~~~~~~~~~


vim +/__compiletime_assert_426 +335 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  321  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  322  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  323  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  324  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  325  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  326   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  327   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  328   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  329   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  330   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  331   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  332   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  333   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  334  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @335  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  336  

:::::: The code at line 335 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, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org