Hi Fengnan, Thank you for the patch! Yet something to improve: [auto build test ERROR on mkp-scsi/for-next] [also build test ERROR on jejb-scsi/for-next v5.15 next-20211110] [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] url: https://github.com/0day-ci/linux/commits/Fengnan-Chang/scsi-ufs-add-quirk... base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next config: nios2-buildonly-randconfig-r006-20211111 (attached as .config) compiler: nios2-linux-gcc (GCC) 11.2.0 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://github.com/0day-ci/linux/commit/d62a8caeaf6fc77b0e717c94db58080d3... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Fengnan-Chang/scsi-ufs-add-quirk-to-keep-write-booster-on/20211111-120016 git checkout d62a8caeaf6fc77b0e717c94db58080d3f1edb68 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/scsi/ufs/ufshcd.c: In function 'ufshcd_devfreq_scale': 1260 | ufshcd_wb_ctrl(hba, scale_up); | ^~~~~~~~~~~~~~ | ufshcd_writel cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SERIAL_CORE_CONSOLE Depends on TTY && HAS_IOMEM Selected by - EARLY_PRINTK vim +1260 drivers/scsi/ufs/ufshcd.c 1211 1212 /** 1213 * ufshcd_devfreq_scale - scale up/down UFS clocks and gear 1214 * @hba: per adapter instance 1215 * @scale_up: True for scaling up and false for scalin down 1216 * 1217 * Returns 0 for success, 1218 * Returns -EBUSY if scaling can't happen at this time 1219 * Returns non-zero for any other errors 1220 */ 1221 static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up) 1222 { 1223 int ret = 0; 1224 bool is_writelock = true; 1225 1226 ret = ufshcd_clock_scaling_prepare(hba); 1227 if (ret) 1228 return ret; 1229 1230 /* scale down the gear before scaling down clocks */ 1231 if (!scale_up) { 1232 ret = ufshcd_scale_gear(hba, false); 1233 if (ret) 1234 goto out_unprepare; 1235 } 1236 1237 ret = ufshcd_scale_clks(hba, scale_up); 1238 if (ret) { 1239 if (!scale_up) 1240 ufshcd_scale_gear(hba, true); 1241 goto out_unprepare; 1242 } 1243 1244 /* scale up the gear after scaling up clocks */ 1245 if (scale_up) { 1246 ret = ufshcd_scale_gear(hba, true); 1247 if (ret) { 1248 ufshcd_scale_clks(hba, false); 1249 goto out_unprepare; 1250 } 1251 } 1252 1253 /* 1254 * if no need UFS_DEVICE_QUIRK_KEEP_ON_WB, Enable Write 1255 * Booster if we have scaled up else disable it 1256 */ 1257 if (!(hba->dev_quirks & UFS_DEVICE_QUIRK_KEEP_ON_WB)) { 1258 downgrade_write(&hba->clk_scaling_lock); 1259 is_writelock = false; 1261 } 1262 1263 out_unprepare: 1264 ufshcd_clock_scaling_unprepare(hba, is_writelock); 1265 return ret; 1266 } 1267 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org