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Message-ID: <201701211043.9U8syNfT%fengguang.wu@intel.com>
Date: Sat, 21 Jan 2017 10:34:43 +0800
From: kbuild test robot <lkp@...el.com>
To: Thomas Garnier <thgarnie@...gle.com>
Cc: kbuild-all@...org, Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, "H . Peter Anvin" <hpa@...or.com>,
Thomas Garnier <thgarnie@...gle.com>,
Kees Cook <keescook@...omium.org>,
"Rafael J . Wysocki" <rjw@...ysocki.net>,
Pavel Machek <pavel@....cz>, Andy Lutomirski <luto@...nel.org>,
Borislav Petkov <bp@...e.de>,
Christian Borntraeger <borntraeger@...ibm.com>,
Brian Gerst <brgerst@...il.com>, He Chen <he.chen@...ux.intel.com>,
Dave Hansen <dave.hansen@...el.com>, Chen Yucong <slaoub@...il.com>,
Baoquan He <bhe@...hat.com>,
Paul Gortmaker <paul.gortmaker@...driver.com>,
Joerg Roedel <joro@...tes.org>, Paolo Bonzini <pbonzini@...hat.com>,
Radim Krčmář <rkrcmar@...hat.com>,
Fenghua Yu <fenghua.yu@...el.com>, x86@...nel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
kvm@...r.kernel.org, kernel-hardening@...ts.openwall.com
Subject: Re: [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-x003-201703 (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 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/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_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_805 +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@...ox.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
---
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