[morse:mpam/snapshot/v5.18 113/146] drivers/platform/mpam/mpam_devices.c:1823:34: warning: variable 'mbwu_state' set but not used

From: kernel test robot
Date: Fri Jun 17 2022 - 13:37:17 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.18
head: bac90d25cbdee0fc233b9b1c47d5b6f44101a384
commit: b14b450aa8048b7f426d01386d754ab6a398fa96 [113/146] arm_mpam: Track bandwidth counter state for overflow and power management
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220617/202206172134.hLhEJMjm-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-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://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=b14b450aa8048b7f426d01386d754ab6a398fa96
git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
git fetch --no-tags morse mpam/snapshot/v5.18
git checkout b14b450aa8048b7f426d01386d754ab6a398fa96
# 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=arm64 SHELL=/bin/bash drivers/platform/mpam/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

drivers/platform/mpam/mpam_devices.c: In function '__destroy_component_cfg':
>> drivers/platform/mpam/mpam_devices.c:1823:34: warning: variable 'mbwu_state' set but not used [-Wunused-but-set-variable]
1823 | struct msmon_mbwu_state *mbwu_state;
| ^~~~~~~~~~


vim +/mbwu_state +1823 drivers/platform/mpam/mpam_devices.c

1818
1819 static void __destroy_component_cfg(struct mpam_component *comp)
1820 {
1821 unsigned long flags;
1822 struct mpam_msc_ris *ris;
> 1823 struct msmon_mbwu_state *mbwu_state;
1824
1825 kfree(comp->cfg);
1826 list_for_each_entry(ris, &comp->ris, comp_list) {
1827 spin_lock(&ris->msc->lock);
1828 spin_lock_irqsave(&ris->msc->mon_sel_lock, flags);
1829 mbwu_state = ris->mbwu_state;
1830 ris->mbwu_state = NULL;
1831 spin_unlock_irqrestore(&ris->msc->mon_sel_lock, flags);
1832 spin_unlock(&ris->msc->lock);
1833
1834 kfree(ris->mbwu_state);
1835 }
1836 }
1837

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