From: kernel test robot <lkp@intel.com>
To: Babu Moger <babu.moger@amd.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
x86@kernel.org, "Borislav Petkov (AMD)" <bp@alien8.de>,
Reinette Chatre <reinette.chatre@intel.com>
Subject: [tip:x86/cache 9/13] arch/x86/kernel/cpu/resctrl/rdtgroup.c:1456:13: warning: variable 'h' set but not used
Date: Tue, 24 Jan 2023 19:55:56 +0800 [thread overview]
Message-ID: <202301241934.L4ops5VY-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cache
head: 0a363fb23ee2f7beb08437ad7db86d195878d79f
commit: dc2a3e857981f859889933cf66ded117d74edff1 [9/13] x86/resctrl: Add interface to read mbm_total_bytes_config
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230124/202301241934.L4ops5VY-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dc2a3e857981f859889933cf66ded117d74edff1
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip x86/cache
git checkout dc2a3e857981f859889933cf66ded117d74edff1
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 olddefconfig
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/cpu/resctrl/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
arch/x86/kernel/cpu/resctrl/rdtgroup.c: In function 'mon_event_config_read':
>> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1456:13: warning: variable 'h' set but not used [-Wunused-but-set-variable]
1456 | u32 h;
| ^
vim +/h +1456 arch/x86/kernel/cpu/resctrl/rdtgroup.c
1451
1452 static void mon_event_config_read(void *info)
1453 {
1454 struct mon_config_info *mon_info = info;
1455 unsigned int index;
> 1456 u32 h;
1457
1458 index = mon_event_config_index_get(mon_info->evtid);
1459 if (index == INVALID_CONFIG_INDEX) {
1460 pr_warn_once("Invalid event id %d\n", mon_info->evtid);
1461 return;
1462 }
1463 rdmsr(MSR_IA32_EVT_CFG_BASE + index, mon_info->mon_config, h);
1464
1465 /* Report only the valid event configuration bits */
1466 mon_info->mon_config &= MAX_EVT_CONFIG_BITS;
1467 }
1468
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
reply other threads:[~2023-01-24 11:57 UTC|newest]
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