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SubjectRe: [PATCH v1 2/3] x86: Remap GDT tables in the Fixmap section
Hi Thomas,

[auto build test ERROR on tip/auto-latest]
[also build test ERROR on v4.10-rc4 next-20170120]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Thomas-Garnier/x86-mm-Adapt-MODULES_END-based-on-Fixmap-section-size/20170121-094756
config: i386-randconfig-x004-201703 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (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/linux/list.h:4,
from include/linux/signal.h:4,
from arch/x86/mm/init_32.c:8:
arch/x86/mm/init_32.c: In function 'mem_init':
>> include/linux/compiler.h:518:38: error: call to '__compiletime_assert_801' declared with attribute error: BUILD_BUG_ON failed: __fix_to_virt(__end_of_fixed_addresses) <= PKMAP_BASE + LAST_PKMAP*PAGE_SIZE
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:501:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler.h:518:2: 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)
^~~~~~~~~~~~~~~~
arch/x86/mm/init_32.c:801:2: note: in expansion of macro 'BUILD_BUG_ON'
BUILD_BUG_ON(__fix_to_virt(__end_of_fixed_addresses) <= PKMAP_BASE + LAST_PKMAP*PAGE_SIZE);
^~~~~~~~~~~~
include/linux/compiler.h:518:38: error: call to '__compiletime_assert_805' declared with attribute error: BUILD_BUG_ON failed: __fix_to_virt(__end_of_fixed_addresses) <= VMALLOC_END
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:501:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler.h:518:2: 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)
^~~~~~~~~~~~~~~~
arch/x86/mm/init_32.c:805:2: note: in expansion of macro 'BUILD_BUG_ON'
BUILD_BUG_ON(__fix_to_virt(__end_of_fixed_addresses) <= VMALLOC_END);
^~~~~~~~~~~~

vim +/__compiletime_assert_801 +518 include/linux/compiler.h

9a8ab1c3 Daniel Santos 2013-02-21 512 *
9a8ab1c3 Daniel Santos 2013-02-21 513 * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c3 Daniel Santos 2013-02-21 514 * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c3 Daniel Santos 2013-02-21 515 * compiler has support to do so.
9a8ab1c3 Daniel Santos 2013-02-21 516 */
9a8ab1c3 Daniel Santos 2013-02-21 517 #define compiletime_assert(condition, msg) \
9a8ab1c3 Daniel Santos 2013-02-21 @518 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos 2013-02-21 519
47933ad4 Peter Zijlstra 2013-11-06 520 #define compiletime_assert_atomic_type(t) \
47933ad4 Peter Zijlstra 2013-11-06 521 compiletime_assert(__native_word(t), \

:::::: The code at line 518 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>

---
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