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Message-ID: <201910010638.xzk5h4Bt%lkp@intel.com>
Date: Tue, 1 Oct 2019 06:51:10 +0800
From: kbuild test robot <lkp@...el.com>
To: Aleksa Sarai <cyphar@...har.com>
Cc: kbuild-all@...org, Al Viro <viro@...iv.linux.org.uk>,
Jeff Layton <jlayton@...nel.org>,
"J. Bruce Fields" <bfields@...ldses.org>,
Arnd Bergmann <arnd@...db.de>,
David Howells <dhowells@...hat.com>,
Shuah Khan <shuah@...nel.org>,
Shuah Khan <skhan@...uxfoundation.org>,
Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
linux-ia64@...r.kernel.org, linux-sh@...r.kernel.org,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Alexei Starovoitov <ast@...nel.org>,
linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
sparclinux@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>,
linux-arch@...r.kernel.org, linux-s390@...r.kernel.org,
Tycho Andersen <tycho@...ho.ws>, Aleksa Sarai <asarai@...e.de>,
linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
linux-xtensa@...ux-xtensa.org, Kees Cook <keescook@...omium.org>,
Jann Horn <jannh@...gle.com>, linuxppc-dev@...ts.ozlabs.org,
Aleksa Sarai <cyphar@...har.com>,
Andy Lutomirski <luto@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
David Drysdale <drysdale@...gle.com>,
Christian Brauner <christian@...uner.io>,
libc-alpha@...rceware.org, linux-parisc@...r.kernel.org,
linux-m68k@...ts.linux-m68k.org, linux-api@...r.kernel.org,
Chanho Min <chanho.min@....com>,
Oleg Nesterov <oleg@...hat.com>,
Eric Biederman <ebiederm@...ssion.com>,
linux-alpha@...r.kernel.org, linux-fsdevel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
containers@...ts.linux-foundation.org
Subject: Re: [PATCH v13 3/9] open: O_EMPTYPATH: procfs-less file descriptor
re-opening
Hi Aleksa,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[cannot apply to v5.4-rc1 next-20190930]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Aleksa-Sarai/namei-openat2-2-path-resolution-restrictions/20191001-025628
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:11:0,
from include/linux/list.h:9,
from include/linux/wait.h:7,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/uapi/linux/aio_abi.h:31,
from include/linux/syscalls.h:74,
from fs/fcntl.c:8:
fs/fcntl.c: In function 'fcntl_init':
>> include/linux/compiler.h:350:38: error: call to '__compiletime_assert_1037' declared with attribute error: BUILD_BUG_ON failed: 22 - 1 != HWEIGHT32( (VALID_OPEN_FLAGS & ~(O_NONBLOCK | O_NDELAY)) | __FMODE_EXEC | __FMODE_NONOTIFY)
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:331:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^~~~~~~~~~~~~~~~
>> fs/fcntl.c:1034:2: note: in expansion of macro 'BUILD_BUG_ON'
BUILD_BUG_ON(22 - 1 /* for O_RDONLY being 0 */ !=
^~~~~~~~~~~~
vim +/__compiletime_assert_1037 +350 include/linux/compiler.h
9a8ab1c39970a4 Daniel Santos 2013-02-21 336
9a8ab1c39970a4 Daniel Santos 2013-02-21 337 #define _compiletime_assert(condition, msg, prefix, suffix) \
9a8ab1c39970a4 Daniel Santos 2013-02-21 338 __compiletime_assert(condition, msg, prefix, suffix)
9a8ab1c39970a4 Daniel Santos 2013-02-21 339
9a8ab1c39970a4 Daniel Santos 2013-02-21 340 /**
9a8ab1c39970a4 Daniel Santos 2013-02-21 341 * compiletime_assert - break build and emit msg if condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21 342 * @condition: a compile-time constant condition to check
9a8ab1c39970a4 Daniel Santos 2013-02-21 343 * @msg: a message to emit if condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21 344 *
9a8ab1c39970a4 Daniel Santos 2013-02-21 345 * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c39970a4 Daniel Santos 2013-02-21 346 * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c39970a4 Daniel Santos 2013-02-21 347 * compiler has support to do so.
9a8ab1c39970a4 Daniel Santos 2013-02-21 348 */
9a8ab1c39970a4 Daniel Santos 2013-02-21 349 #define compiletime_assert(condition, msg) \
9a8ab1c39970a4 Daniel Santos 2013-02-21 @350 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c39970a4 Daniel Santos 2013-02-21 351
:::::: The code at line 350 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>
---
0-DAY kernel test infrastructure Open Source Technology Center
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