Hi Rafael, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge head: f890729ea3ca4d549b4e2414c42e932163814f09 commit: 5d872146e7f55e15c26d0a5600b155ee54bfdee6 [5/6] PM: sleep: Use bool for all 1-bit fields in struct dev_pm_info config: i386-buildonly-randconfig-004-20240123 (https://download.01.org/0day-ci/archive/20240123/202401231130.9tnv8Gds-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240123/202401231130.9tnv8Gds-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401231130.9tnv8Gds-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/base/power/runtime.c: In function 'pm_runtime_new_link': >> drivers/base/power/runtime.c:1815:24: warning: increment of a boolean expression [-Wbool-operation] 1815 | dev->power.links_count++; | ^~ drivers/base/power/runtime.c: In function 'pm_runtime_drop_link_count': >> drivers/base/power/runtime.c:1823:24: warning: decrement of a boolean expression [-Wbool-operation] 1823 | dev->power.links_count--; | ^~ vim +1815 drivers/base/power/runtime.c 21d5c57b3726166 Rafael J. Wysocki 2016-10-30 1811 baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1812 void pm_runtime_new_link(struct device *dev) baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1813 { baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1814 spin_lock_irq(&dev->power.lock); baa8809f60971d1 Rafael J. Wysocki 2016-10-30 @1815 dev->power.links_count++; baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1816 spin_unlock_irq(&dev->power.lock); baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1817 } baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1818 e0e398e204634db Rafael J. Wysocki 2020-10-21 1819 static void pm_runtime_drop_link_count(struct device *dev) baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1820 { baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1821 spin_lock_irq(&dev->power.lock); baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1822 WARN_ON(dev->power.links_count == 0); baa8809f60971d1 Rafael J. Wysocki 2016-10-30 @1823 dev->power.links_count--; baa8809f60971d1 Rafael J. Wysocki 2016-10-30 1824 spin_unlock_irq(&dev->power.lock); e0e398e204634db Rafael J. Wysocki 2020-10-21 1825 } e0e398e204634db Rafael J. Wysocki 2020-10-21 1826 :::::: The code at line 1815 was first introduced by commit :::::: baa8809f60971d10220dfe79248f54b2b265f003 PM / runtime: Optimize the use of device links :::::: TO: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> :::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
