tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing head: 7f490ac24ed4b59ef8807c31e46a9afea1ca43c6 commit: f564c1027c1faaf46f3d4191f37d97a1d9ee9022 [55/91] serial: core: remove unneeded irq_wake flag config: arm-lart_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout f564c1027c1faaf46f3d4191f37d97a1d9ee9022 # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/tty/serial/serial_core.c: In function 'uart_resume_port': >> drivers/tty/serial/serial_core.c:2149:7: error: implicit declaration of function 'irqd_is_wakeup_set' [-Werror=implicit-function-declaration] if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq)))) ^~~~~~~~~~~~~~~~~~ >> drivers/tty/serial/serial_core.c:2149:26: error: implicit declaration of function 'irq_get_irq_data' [-Werror=implicit-function-declaration] if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq)))) ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/irqd_is_wakeup_set +2149 drivers/tty/serial/serial_core.c 2136 2137 int uart_resume_port(struct uart_driver *drv, struct uart_port *uport) 2138 { 2139 struct uart_state *state = drv->state + uport->line; 2140 struct tty_port *port = &state->port; 2141 struct device *tty_dev; 2142 struct uart_match match = {uport, drv}; 2143 struct ktermios termios; 2144 2145 mutex_lock(&port->mutex); 2146 2147 tty_dev = device_find_child(uport->dev, &match, serial_match_port); 2148 if (!uport->suspended && device_may_wakeup(tty_dev)) { > 2149 if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq)))) 2150 disable_irq_wake(uport->irq); 2151 put_device(tty_dev); 2152 mutex_unlock(&port->mutex); 2153 return 0; 2154 } 2155 put_device(tty_dev); 2156 uport->suspended = 0; 2157 2158 /* 2159 * Re-enable the console device after suspending. 2160 */ 2161 if (uart_console(uport)) { 2162 /* 2163 * First try to use the console cflag setting. 2164 */ 2165 memset(&termios, 0, sizeof(struct ktermios)); 2166 termios.c_cflag = uport->cons->cflag; 2167 2168 /* 2169 * If that's unset, use the tty termios setting. 2170 */ 2171 if (port->tty && termios.c_cflag == 0) 2172 termios = port->tty->termios; 2173 2174 if (console_suspend_enabled) 2175 uart_change_pm(state, UART_PM_STATE_ON); 2176 uport->ops->set_termios(uport, &termios, NULL); 2177 if (console_suspend_enabled) 2178 console_start(uport->cons); 2179 } 2180 2181 if (tty_port_suspended(port)) { 2182 const struct uart_ops *ops = uport->ops; 2183 int ret; 2184 2185 uart_change_pm(state, UART_PM_STATE_ON); 2186 spin_lock_irq(&uport->lock); 2187 ops->set_mctrl(uport, 0); 2188 spin_unlock_irq(&uport->lock); 2189 if (console_suspend_enabled || !uart_console(uport)) { 2190 /* Protected by port mutex for now */ 2191 struct tty_struct *tty = port->tty; 2192 ret = ops->startup(uport); 2193 if (ret == 0) { 2194 if (tty) 2195 uart_change_speed(tty, state, NULL); 2196 spin_lock_irq(&uport->lock); 2197 ops->set_mctrl(uport, uport->mctrl); 2198 ops->start_tx(uport); 2199 spin_unlock_irq(&uport->lock); 2200 tty_port_set_initialized(port, 1); 2201 } else { 2202 /* 2203 * Failed to resume - maybe hardware went away? 2204 * Clear the "initialized" flag so we won't try 2205 * to call the low level drivers shutdown method. 2206 */ 2207 uart_shutdown(tty, state); 2208 } 2209 } 2210 2211 tty_port_set_suspended(port, 0); 2212 } 2213 2214 mutex_unlock(&port->mutex); 2215 2216 return 0; 2217 } 2218 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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