tree: git://anongit.freedesktop.org/drm-intel for-linux-next
head: bea4e4a4f831df1c104be60b3caa7205ba1bb4f9
commit: 1d1a9774e40414148ecebbdb713746bfb6f9a561 [4/5] drm/i915: Extend intel_wait_for_register_fw() with fast timeout
config: x86_64-randconfig-h0-04080942 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
git checkout 1d1a9774e40414148ecebbdb713746bfb6f9a561
# save the attached .config to linux build tree
make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
In file included from include/uapi/linux/stddef.h:1:0,
from include/linux/stddef.h:4,
from include/uapi/linux/posix_types.h:4,
from include/uapi/linux/types.h:13,
from include/linux/types.h:5,
from include/uapi/drm/drm.h:41,
from include/uapi/drm/i915_drm.h:30,
from drivers/gpu/drm/i915/i915_drv.h:33,
from drivers/gpu/drm/i915/intel_uncore.c:24:
drivers/gpu/drm/i915/intel_uncore.c: In function '__intel_wait_for_register_fw':
>> include/linux/compiler.h:529:38: error: call to '__compiletime_assert_1626' declared with attribute error: BUILD_BUG_ON failed: (fast_timeout_us) > 50000
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:512:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^
include/linux/compiler.h:529:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/bug.h:54:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/bug.h:78:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^
>> drivers/gpu/drm/i915/intel_drv.h:91:2: note: in expansion of macro 'BUILD_BUG_ON'
BUILD_BUG_ON((US) > 50000); \
^
>> drivers/gpu/drm/i915/intel_uncore.c:1626:9: note: in expansion of macro '_wait_for_atomic'
ret = _wait_for_atomic(done, fast_timeout_us, 0);
^
vim +/__compiletime_assert_1626 +529 include/linux/compiler.h
9a8ab1c3 Daniel Santos 2013-02-21 523 *
9a8ab1c3 Daniel Santos 2013-02-21 524 * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c3 Daniel Santos 2013-02-21 525 * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c3 Daniel Santos 2013-02-21 526 * compiler has support to do so.
9a8ab1c3 Daniel Santos 2013-02-21 527 */
9a8ab1c3 Daniel Santos 2013-02-21 528 #define compiletime_assert(condition, msg) \
9a8ab1c3 Daniel Santos 2013-02-21 @529 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos 2013-02-21 530
47933ad4 Peter Zijlstra 2013-11-06 531 #define compiletime_assert_atomic_type(t) \
47933ad4 Peter Zijlstra 2013-11-06 532 compiletime_assert(__native_word(t), \
:::::: The code at line 529 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG
:::::: TO: Daniel Santos <daniel.santos@xxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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