tree: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git devfreq-testing head: 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e commit: 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e [5/5] PM / devfreq: Add new up_threshold and down_differential sysfs attrs config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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/chanwoo/linux.git/commit/... git remote add chanwoo https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git git fetch --no-tags chanwoo devfreq-testing git checkout 82254c87f7c13ff0ca73ca9a8c776ddd1c638f9e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/scsi/ufs/ufs-qcom.c: In function 'ufs_qcom_config_scaling_param': 1438 | static struct devfreq_simple_ondemand_data *d; | ^ vim +/d +1438 drivers/scsi/ufs/ufs-qcom.c b8416b2fedbf1c Bjorn Andersson 2019-08-28 1432 80b21006cd0e86 Asutosh Das 2020-03-25 1433 #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND) 80b21006cd0e86 Asutosh Das 2020-03-25 1434 static void ufs_qcom_config_scaling_param(struct ufs_hba *hba, 80b21006cd0e86 Asutosh Das 2020-03-25 1435 struct devfreq_dev_profile *p, 80b21006cd0e86 Asutosh Das 2020-03-25 1436 void *data) 80b21006cd0e86 Asutosh Das 2020-03-25 1437 { 80b21006cd0e86 Asutosh Das 2020-03-25 @1438 static struct devfreq_simple_ondemand_data *d; 80b21006cd0e86 Asutosh Das 2020-03-25 1439 80b21006cd0e86 Asutosh Das 2020-03-25 1440 if (!data) 80b21006cd0e86 Asutosh Das 2020-03-25 1441 return; 80b21006cd0e86 Asutosh Das 2020-03-25 1442 80b21006cd0e86 Asutosh Das 2020-03-25 1443 d = (struct devfreq_simple_ondemand_data *)data; 80b21006cd0e86 Asutosh Das 2020-03-25 1444 p->polling_ms = 60; 82254c87f7c13f Chanwoo Choi 2020-10-08 1445 p->up_threshold = 70; 82254c87f7c13f Chanwoo Choi 2020-10-08 1446 p->down_differential = 5; 80b21006cd0e86 Asutosh Das 2020-03-25 1447 } 80b21006cd0e86 Asutosh Das 2020-03-25 1448 #else 80b21006cd0e86 Asutosh Das 2020-03-25 1449 static void ufs_qcom_config_scaling_param(struct ufs_hba *hba, 80b21006cd0e86 Asutosh Das 2020-03-25 1450 struct devfreq_dev_profile *p, 80b21006cd0e86 Asutosh Das 2020-03-25 1451 void *data) 80b21006cd0e86 Asutosh Das 2020-03-25 1452 { 80b21006cd0e86 Asutosh Das 2020-03-25 1453 } 80b21006cd0e86 Asutosh Das 2020-03-25 1454 #endif 80b21006cd0e86 Asutosh Das 2020-03-25 1455 :::::: The code at line 1438 was first introduced by commit :::::: 80b21006cd0e8661affd8e1bf1707c8d5099605e scsi: ufs-qcom: Override devfreq parameters :::::: TO: Asutosh Das <asutoshd(a)codeaurora.org&gt; :::::: CC: Martin K. Petersen <martin.petersen(a)oracle.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org