[alobakin:idpf-libie-new 31/69] include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct idpf_rx_queue, __cacheline_group_end__read_write) - offsetofend(struct idpf_rx_queue, __cacheline_group_begin__read_write) <= ALIGN(80, __LIBETH_LARGEST_ALIGN)"

[alobakin:idpf-libie-new 31/69] include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct idpf_rx_queue, __cacheline_group_end__read_write) - offsetofend(struct idpf_rx_queue, __cacheline_group_begin__read_write) <= ALIGN(80, __LIBETH_LARGEST_ALIGN)"

[kernel test robot]

tree:   https://github.com/alobakin/linux idpf-libie-new
head:   b336f2db592517d25e745924c92e8604eeea0502
commit: 1f36eeccb1b5f9e58d371a6d75eb77821fb16aa2 [31/69] idpf: strictly assert cachelines of queue and queue vector structures
config: microblaze-allmodconfig (https://download.01.org/0day-ci/archive/20240323/202403230719.kuHT3obM-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240323/202403230719.kuHT3obM-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/202403230719.kuHT3obM-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/bits.h:22,
                    from include/linux/bitops.h:6,
                    from include/linux/log2.h:12,
                    from include/asm-generic/div64.h:55,
                    from ./arch/microblaze/include/generated/asm/div64.h:1,
                    from include/linux/math.h:6,
                    from include/linux/math64.h:6,
                    from include/linux/jiffies.h:7,
                    from include/net/pkt_sched.h:5,
                    from drivers/net/ethernet/intel/idpf/idpf.h:12,
                    from drivers/net/ethernet/intel/idpf/idpf_dev.c:4:
>> include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct idpf_rx_queue, __cacheline_group_end__read_write) - offsetofend(struct idpf_rx_queue, __cacheline_group_begin__read_write) <= ALIGN(80, __LIBETH_LARGEST_ALIGN)"
      78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
         |                                         ^~~~~~~~~~~~~~
   include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
      77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
         |                                  ^~~~~~~~~~~~~~~
   include/net/libeth/cache.h:28:9: note: in expansion of macro 'static_assert'
      28 |         static_assert(offsetof(type, __cacheline_group_end__##grp) -        \
         |         ^~~~~~~~~~~~~
   include/net/libeth/cache.h:36:9: note: in expansion of macro '__libeth_cacheline_group_assert'
      36 |         __libeth_cacheline_group_assert(type, read_write, rw);              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/ethernet/intel/idpf/idpf_txrx.h:706:1: note: in expansion of macro '__libeth_cacheline_set_assert'
     706 | __libeth_cacheline_set_assert(struct idpf_rx_queue, 64, 80, 32);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct idpf_tx_queue, __cacheline_group_end__read_write) - offsetofend(struct idpf_tx_queue, __cacheline_group_begin__read_write) <= ALIGN(96, __LIBETH_LARGEST_ALIGN)"
      78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
         |                                         ^~~~~~~~~~~~~~
   include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
      77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
         |                                  ^~~~~~~~~~~~~~~
   include/net/libeth/cache.h:28:9: note: in expansion of macro 'static_assert'
      28 |         static_assert(offsetof(type, __cacheline_group_end__##grp) -        \
         |         ^~~~~~~~~~~~~
   include/net/libeth/cache.h:36:9: note: in expansion of macro '__libeth_cacheline_group_assert'
      36 |         __libeth_cacheline_group_assert(type, read_write, rw);              \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/ethernet/intel/idpf/idpf_txrx.h:823:1: note: in expansion of macro '__libeth_cacheline_set_assert'
     823 | __libeth_cacheline_set_assert(struct idpf_tx_queue, 64, 96, 32);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +78 include/linux/build_bug.h

bc6245e5efd70c Ian Abbott       2017-07-10  60  
6bab69c65013be Rasmus Villemoes 2019-03-07  61  /**
6bab69c65013be Rasmus Villemoes 2019-03-07  62   * static_assert - check integer constant expression at build time
6bab69c65013be Rasmus Villemoes 2019-03-07  63   *
6bab69c65013be Rasmus Villemoes 2019-03-07  64   * static_assert() is a wrapper for the C11 _Static_assert, with a
6bab69c65013be Rasmus Villemoes 2019-03-07  65   * little macro magic to make the message optional (defaulting to the
6bab69c65013be Rasmus Villemoes 2019-03-07  66   * stringification of the tested expression).
6bab69c65013be Rasmus Villemoes 2019-03-07  67   *
6bab69c65013be Rasmus Villemoes 2019-03-07  68   * Contrary to BUILD_BUG_ON(), static_assert() can be used at global
6bab69c65013be Rasmus Villemoes 2019-03-07  69   * scope, but requires the expression to be an integer constant
6bab69c65013be Rasmus Villemoes 2019-03-07  70   * expression (i.e., it is not enough that __builtin_constant_p() is
6bab69c65013be Rasmus Villemoes 2019-03-07  71   * true for expr).
6bab69c65013be Rasmus Villemoes 2019-03-07  72   *
6bab69c65013be Rasmus Villemoes 2019-03-07  73   * Also note that BUILD_BUG_ON() fails the build if the condition is
6bab69c65013be Rasmus Villemoes 2019-03-07  74   * true, while static_assert() fails the build if the expression is
6bab69c65013be Rasmus Villemoes 2019-03-07  75   * false.
6bab69c65013be Rasmus Villemoes 2019-03-07  76   */
6bab69c65013be Rasmus Villemoes 2019-03-07  77  #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
6bab69c65013be Rasmus Villemoes 2019-03-07 @78  #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
6bab69c65013be Rasmus Villemoes 2019-03-07  79  
07a368b3f55a79 Maxim Levitsky   2022-10-25  80  

:::::: The code at line 78 was first introduced by commit
:::::: 6bab69c65013bed5fce9f101a64a84d0385b3946 build_bug.h: add wrapper for _Static_assert

:::::: TO: Rasmus Villemoes <linux@rasmusvillemoes.dk>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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