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Subjectinclude/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_481' declared with attribute error: Please avoid flushing system_unbound_wq.
tree:   https://github.com/intel-lab-lkp/linux/commits/UPDATE-20220516-093322/Tetsuo-Handa/checkpatch-warn-about-flushing-system-wide-workqueues/20220425-073327
head: cd007363b7985a824de0ec5e05f0cb0705e59c88
commit: cd007363b7985a824de0ec5e05f0cb0705e59c88 workqueue: Wrap flush_workqueue() using a macro
date: 18 hours ago
config: arm-randconfig-r002-20220516 (https://download.01.org/0day-ci/archive/20220517/202205170301.QHEka2f9-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/cd007363b7985a824de0ec5e05f0cb0705e59c88
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review UPDATE-20220516-093322/Tetsuo-Handa/checkpatch-warn-about-flushing-system-wide-workqueues/20220425-073327
git checkout cd007363b7985a824de0ec5e05f0cb0705e59c88
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/infiniband/core/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

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_481' 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:682:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
682 | 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);
| ^~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for NET_DSA_SMSC_LAN9303
Depends on NETDEVICES && NET_DSA && (VLAN_8021Q || VLAN_8021Q
Selected by
- NET_DSA_SMSC_LAN9303_I2C && NETDEVICES && NET_DSA && I2C
- NET_DSA_SMSC_LAN9303_MDIO && NETDEVICES && NET_DSA


vim +/__compiletime_assert_481 +352 include/linux/compiler_types.h

eb5c2d4b45e3d2d Will Deacon 2020-07-21 338
eb5c2d4b45e3d2d Will Deacon 2020-07-21 339 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2d Will Deacon 2020-07-21 340 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2d Will Deacon 2020-07-21 341
eb5c2d4b45e3d2d Will Deacon 2020-07-21 342 /**
eb5c2d4b45e3d2d Will Deacon 2020-07-21 343 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2d Will Deacon 2020-07-21 344 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2d Will Deacon 2020-07-21 345 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2d Will Deacon 2020-07-21 346 *
eb5c2d4b45e3d2d Will Deacon 2020-07-21 347 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2d Will Deacon 2020-07-21 348 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2d Will Deacon 2020-07-21 349 * compiler has support to do so.
eb5c2d4b45e3d2d Will Deacon 2020-07-21 350 */
eb5c2d4b45e3d2d Will Deacon 2020-07-21 351 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2d Will Deacon 2020-07-21 @352 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2d Will Deacon 2020-07-21 353

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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