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* [drm-intel:for-linux-next-fixes 4/4] include/linux/compiler.h:339:38: error: call to '__compiletime_assert_119' declared with attribute error: BUILD_BUG_ON failed: sizeof(_s) > sizeof(long)
@ 2018-05-26 22:01 kbuild test robot
  0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2018-05-26 22:01 UTC (permalink / raw)
  To: Chris Wilson; +Cc: Jani Nikula, intel-gfx, kbuild-all, dri-devel

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tree:   git://anongit.freedesktop.org/drm-intel for-linux-next-fixes
head:   57ebdafc306af9decd893b4cb11bd834a7e27ed1
commit: 57ebdafc306af9decd893b4cb11bd834a7e27ed1 [4/4] drm/i915/query: Protect tainted function pointer lookup
config: i386-randconfig-s0-201821 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
        git checkout 57ebdafc306af9decd893b4cb11bd834a7e27ed1
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   In file included from include/asm-generic/barrier.h:20:0,
                    from arch/x86/include/asm/barrier.h:86,
                    from include/linux/nospec.h:8,
                    from drivers/gpu//drm/i915/i915_query.c:7:
   drivers/gpu//drm/i915/i915_query.c: In function 'i915_query_ioctl':
>> include/linux/compiler.h:339:38: error: call to '__compiletime_assert_119' declared with attribute error: BUILD_BUG_ON failed: sizeof(_s) > sizeof(long)
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:319:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:339:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:45:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:69:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   include/linux/nospec.h:53:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(sizeof(_i) > sizeof(long));   \
     ^~~~~~~~~~~~
   drivers/gpu//drm/i915/i915_query.c:118:15: note: in expansion of macro 'array_index_nospec'
       func_idx = array_index_nospec(func_idx,
                  ^~~~~~~~~~~~~~~~~~
--
   In file included from include/asm-generic/barrier.h:20:0,
                    from arch/x86/include/asm/barrier.h:86,
                    from include/linux/nospec.h:8,
                    from drivers/gpu/drm/i915/i915_query.c:7:
   drivers/gpu/drm/i915/i915_query.c: In function 'i915_query_ioctl':
>> include/linux/compiler.h:339:38: error: call to '__compiletime_assert_119' declared with attribute error: BUILD_BUG_ON failed: sizeof(_s) > sizeof(long)
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:319:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:339:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:45:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:69:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
   include/linux/nospec.h:53:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(sizeof(_i) > sizeof(long));   \
     ^~~~~~~~~~~~
   drivers/gpu/drm/i915/i915_query.c:118:15: note: in expansion of macro 'array_index_nospec'
       func_idx = array_index_nospec(func_idx,
                  ^~~~~~~~~~~~~~~~~~

vim +/__compiletime_assert_119 +339 include/linux/compiler.h

9a8ab1c3 Daniel Santos 2013-02-21  325  
9a8ab1c3 Daniel Santos 2013-02-21  326  #define _compiletime_assert(condition, msg, prefix, suffix) \
9a8ab1c3 Daniel Santos 2013-02-21  327  	__compiletime_assert(condition, msg, prefix, suffix)
9a8ab1c3 Daniel Santos 2013-02-21  328  
9a8ab1c3 Daniel Santos 2013-02-21  329  /**
9a8ab1c3 Daniel Santos 2013-02-21  330   * compiletime_assert - break build and emit msg if condition is false
9a8ab1c3 Daniel Santos 2013-02-21  331   * @condition: a compile-time constant condition to check
9a8ab1c3 Daniel Santos 2013-02-21  332   * @msg:       a message to emit if condition is false
9a8ab1c3 Daniel Santos 2013-02-21  333   *
9a8ab1c3 Daniel Santos 2013-02-21  334   * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c3 Daniel Santos 2013-02-21  335   * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c3 Daniel Santos 2013-02-21  336   * compiler has support to do so.
9a8ab1c3 Daniel Santos 2013-02-21  337   */
9a8ab1c3 Daniel Santos 2013-02-21  338  #define compiletime_assert(condition, msg) \
9a8ab1c3 Daniel Santos 2013-02-21 @339  	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos 2013-02-21  340  

:::::: The code at line 339 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG

:::::: TO: Daniel Santos <daniel.santos@pobox.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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2018-05-26 22:01 [drm-intel:for-linux-next-fixes 4/4] include/linux/compiler.h:339:38: error: call to '__compiletime_assert_119' declared with attribute error: BUILD_BUG_ON failed: sizeof(_s) > sizeof(long) kbuild test robot

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