Re: [RFC PATCH 2/4] workqueue: support holding a mutex for each work

[kernel test robot <lkp@intel.com>]

Hi Johannes,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main tj-wq/for-next linus/master v6.4-rc1 next-20230510]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Johannes-Berg/workqueue-support-pausing-ordered-workqueues/20230511-000621
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link:    https://lore.kernel.org/r/20230510175846.cc21c84b0e6b.I9d3df459c43a78530d9c2046724bb45626402d5f%40changeid
patch subject: [RFC PATCH 2/4] workqueue: support holding a mutex for each work
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20230511/202305110158.a5FXMR4H-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/b4039a3ff5134e4344a9e12908180a69888c4c9a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Johannes-Berg/workqueue-support-pausing-ordered-workqueues/20230511-000621
        git checkout b4039a3ff5134e4344a9e12908180a69888c4c9a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um SUBARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash drivers/base/power/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305110158.a5FXMR4H-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/pm.h:13,
                    from drivers/base/power/generic_ops.c:7:
>> include/linux/workqueue.h:392:26: warning: 'struct mutex' declared inside parameter list will not be visible outside of this definition or declaration
     392 |                   struct mutex *work_mutex, ...);
         |                          ^~~~~


vim +392 include/linux/workqueue.h

   389	
   390	__printf(1, 5) struct workqueue_struct *
   391	__alloc_workqueue(const char *fmt, unsigned int flags, int max_active,
 > 392			  struct mutex *work_mutex, ...);
   393	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests