Hi Ming, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next head: b47a81dcc5a806efb6d970608299129771588289 commit: 37276a51f803ef63be988e26293ac85188475556 [21/25] firmware: introduce device_cache/uncache_fw_images config: i386-randconfig-k725 (attached as .config) It still happens on the updated HEAD 9baf322. drivers/base/firmware_class.c: In function 'device_cache_fw_images': drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c:1154:2: error: 'dpm_list' undeclared (first use in this function) drivers/base/firmware_class.c:1154:2: note: each undeclared identifier is reported only once for each function it appears in drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c:1154:2: error: 'struct dev_pm_info' has no member named 'entry' drivers/base/firmware_class.c: At top level: drivers/base/firmware_class.c:1145:13: warning: 'device_cache_fw_images' defined but not used [-Wunused-function] drivers/base/firmware_class.c:1200:13: warning: 'device_uncache_fw_images_delay' defined but not used [-Wunused-function] vim +1154 drivers/base/firmware_class.c 1151 pr_debug("%s\n", __func__); 1152 1153 device_pm_lock(); > 1154 list_for_each_entry(dev, &dpm_list, power.entry) 1155 dev_cache_fw_image(dev); 1156 device_pm_unlock(); 1157 --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation