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Date: Mon, 2 May 2022 14:31:07 +0800
From: kernel test robot <lkp@...el.com>
To: Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [tomoyo-test1:master 2/2] include/linux/compiler_types.h:352:45:
error: call to '__compiletime_assert_302' declared with attribute error:
Please avoid flushing system_long_wq.
tree: https://scm.osdn.net/gitroot/tomoyo/tomoyo-test1.git master
head: c806998d6e2cfdbcf8f4b241b709552b7d85fa3e
commit: c806998d6e2cfdbcf8f4b241b709552b7d85fa3e [2/2] workqueue: Wrap flush_workqueue() using a macro
config: x86_64-randconfig-a015 (https://download.01.org/0day-ci/archive/20220502/202205021411.imkBoPfj-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
git remote add tomoyo-test1 https://scm.osdn.net/gitroot/tomoyo/tomoyo-test1.git
git fetch --no-tags tomoyo-test1 master
git checkout c806998d6e2cfdbcf8f4b241b709552b7d85fa3e
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from <command-line>:
In function 'rnbd_destroy_sessions',
inlined from 'rnbd_client_exit' at drivers/block/rnbd/rnbd-clt.c:1801:2:
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_302' declared with attribute error: Please avoid flushing system_long_wq.
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:333:25: note: in definition of macro '__compiletime_assert'
333 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:352:9: note: in expansion of macro '_compiletime_assert'
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/workqueue.h:666:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
666 | BUILD_BUG_ON_MSG(__builtin_constant_p(&(wq) == &system_long_wq) && \
| ^~~~~~~~~~~~~~~~
drivers/block/rnbd/rnbd-clt.c:1769:9: note: in expansion of macro 'flush_workqueue'
1769 | flush_workqueue(system_long_wq);
| ^~~~~~~~~~~~~~~
--
In file included from <command-line>:
drivers/infiniband/core/device.c: In function 'ib_core_cleanup':
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_514' declared with attribute error: Please avoid flushing system_unbound_wq.
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:333:25: note: in definition of macro '__compiletime_assert'
333 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:352:9: note: in expansion of macro '_compiletime_assert'
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/workqueue.h:669:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
669 | BUILD_BUG_ON_MSG(__builtin_constant_p(&(wq) == &system_unbound_wq) && \
| ^~~~~~~~~~~~~~~~
drivers/infiniband/core/device.c:2857:9: note: in expansion of macro 'flush_workqueue'
2857 | flush_workqueue(system_unbound_wq);
| ^~~~~~~~~~~~~~~
vim +/__compiletime_assert_302 +352 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 338
eb5c2d4b45e3d2 Will Deacon 2020-07-21 339 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 340 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 341
eb5c2d4b45e3d2 Will Deacon 2020-07-21 342 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 343 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 344 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 345 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 346 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 347 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 348 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 349 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 350 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 351 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @352 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 353
:::::: The code at line 352 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
:::::: TO: Will Deacon <will@...nel.org>
:::::: CC: Will Deacon <will@...nel.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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