netdev - [net-next:main 26/39] include/linux/compiler_types.h:460:45: error: call to '__compiletime_assert_907' declared with attribute error: BUILD_BUG_ON failed: offsetof(struct tcp_sock, __cacheline_group_end__tcp_sock_write_txrx) - offsetofend(struct tcp_sock, __cacheline_group

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Message-ID: <202404082102.UUNpUXV6-lkp@intel.com>
Date: Mon, 8 Apr 2024 21:26:02 +0800
From: kernel test robot <lkp@...el.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org
Subject: [net-next:main 26/39] include/linux/compiler_types.h:460:45: error:
 call to '__compiletime_assert_907' declared with attribute error:
 BUILD_BUG_ON failed: offsetof(struct tcp_sock,
 __cacheline_group_end__tcp_sock_write_txrx) - offsetofend(struct tcp_sock,
 __cacheline_group_beg...

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git main
head:   a29689e60ed3e65463d6462390caad669d08a6b7
commit: d2c3a7eb1afada8cfb5fde41489913ea5733a319 [26/39] tcp: more struct tcp_sock adjustments
config: parisc-defconfig (https://download.01.org/0day-ci/archive/20240408/202404082102.UUNpUXV6-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240408/202404082102.UUNpUXV6-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/202404082102.UUNpUXV6-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function 'tcp_struct_check',
       inlined from 'tcp_init' at net/ipv4/tcp.c:4703:2:
>> include/linux/compiler_types.h:460:45: error: call to '__compiletime_assert_907' declared with attribute error: BUILD_BUG_ON failed: offsetof(struct tcp_sock, __cacheline_group_end__tcp_sock_write_txrx) - offsetofend(struct tcp_sock, __cacheline_group_begin__tcp_sock_write_txrx) > 92
     460 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:441:25: note: in definition of macro '__compiletime_assert'
     441 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:460:9: note: in expansion of macro '_compiletime_assert'
     460 |         _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)
         |         ^~~~~~~~~~~~~~~~
   include/linux/cache.h:108:9: note: in expansion of macro 'BUILD_BUG_ON'
     108 |         BUILD_BUG_ON(offsetof(TYPE, __cacheline_group_end__##GROUP) - \
         |         ^~~~~~~~~~~~
   net/ipv4/tcp.c:4673:9: note: in expansion of macro 'CACHELINE_ASSERT_GROUP_SIZE'
    4673 |         CACHELINE_ASSERT_GROUP_SIZE(struct tcp_sock, tcp_sock_write_txrx, 92);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/__compiletime_assert_907 +460 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  446  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  447  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  448  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  449  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  450  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  451   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  452   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  453   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  454   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  455   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  456   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  457   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  458   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  459  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @460  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  461  

:::::: The code at line 460 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