tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-next head: ba3684f99f1b25d2a30b6956d02d339d7acb9799 commit: c70669ecef4e34af8913108fae4b8a9b1dc63fa1 [27/39] serial: stm32: select pinctrl state in each suspend/resume function config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout c70669ecef4e34af8913108fae4b8a9b1dc63fa1 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/tty/serial/stm32-usart.c: In function 'stm32_serial_suspend': drivers/tty/serial/stm32-usart.c:1301:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration] pinctrl_pm_select_sleep_state(dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/tty/serial/stm32-usart.c: In function 'stm32_serial_resume': >> drivers/tty/serial/stm32-usart.c:1310:2: error: implicit declaration of function 'pinctrl_pm_select_default_state'; did you mean 'irq_set_default_host'? [-Werror=implicit-function-declaration] pinctrl_pm_select_default_state(dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ irq_set_default_host cc1: some warnings being treated as errors vim +1310 drivers/tty/serial/stm32-usart.c 1289 1290 static int stm32_serial_suspend(struct device *dev) 1291 { 1292 struct uart_port *port = dev_get_drvdata(dev); 1293 1294 uart_suspend_port(&stm32_usart_driver, port); 1295 1296 if (device_may_wakeup(dev)) 1297 stm32_serial_enable_wakeup(port, true); 1298 else 1299 stm32_serial_enable_wakeup(port, false); 1300 > 1301 pinctrl_pm_select_sleep_state(dev); 1302 1303 return 0; 1304 } 1305 1306 static int stm32_serial_resume(struct device *dev) 1307 { 1308 struct uart_port *port = dev_get_drvdata(dev); 1309 > 1310 pinctrl_pm_select_default_state(dev); 1311 1312 if (device_may_wakeup(dev)) 1313 stm32_serial_enable_wakeup(port, false); 1314 1315 return uart_resume_port(&stm32_usart_driver, port); 1316 } 1317 #endif /* CONFIG_PM_SLEEP */ 1318 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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