Re: [PATCH] lkdtm: Add folio_lock deadlock scenarios

kernel test robot
2026-04-07T04:00:46Z

Hi Yunseong,

kernel test robot noticed the following build warnings:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus kees/for-next/pstore kees/for-next/kspp shuah-kselftest/next shuah-kselftest/fixes soc/for-next linus/master v7.0-rc6 next-20260403]
[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/Yunseong-Kim/lkdtm-Add-folio_lock-deadlock-scenarios/20260405-145013
base: char-misc/char-misc-testing
patch link: https://lore.kernel.org/r/20260402143947.162844-1-ysk%40kzalloc.com
patch subject: [PATCH] lkdtm: Add folio_lock deadlock scenarios
config: s390-randconfig-002-20260405 (https://download.01.org/0day-ci/archive/20260405/202604051743.4BM8o6lT-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260405/202604051743.4BM8o6lT-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604051743.4BM8o6lT-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: drivers/misc/lkdtm/deadlock.c:228 function parameter '' not described in 'lkdtm_waiter_thread'
>> Warning: drivers/misc/lkdtm/deadlock.c:228 function parameter '' not described in 'lkdtm_waiter_thread'

Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for OF_GPIO
Depends on [n]: GPIOLIB [=y] && OF [=y] && HAS_IOMEM [=n]
Selected by [y]:
- REGULATOR_RT5133 [=y] && REGULATOR [=y] && I2C [=y] && GPIOLIB [=y] && OF [=y]