Re: [PATCH] serial: 8250_of: Add basic PM runtime support

From: kbuild test robot
Date: Thu Aug 03 2017 - 03:44:18 EST


Hi Franklin,

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on next-20170802]
[cannot apply to v4.13-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Franklin-S-Cooper-Jr/serial-8250_of-Add-basic-PM-runtime-support/20170803-151414
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-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
# save the attached .config to linux build tree
make.cross ARCH=sparc64

All errors (new ones prefixed by >>):

drivers/tty//serial/8250/8250_of.c: In function 'of_serial_suspend':
>> drivers/tty//serial/8250/8250_of.c:273:24: error: 'ofdev' undeclared (first use in this function)
pm_runtime_put_sync(&ofdev->dev);
^~~~~
drivers/tty//serial/8250/8250_of.c:273:24: note: each undeclared identifier is reported only once for each function it appears in
drivers/tty//serial/8250/8250_of.c: In function 'of_serial_resume':
drivers/tty//serial/8250/8250_of.c:286:24: error: 'ofdev' undeclared (first use in this function)
pm_runtime_get_sync(&ofdev->dev);
^~~~~

vim +/ofdev +273 drivers/tty//serial/8250/8250_of.c

262
263 #ifdef CONFIG_PM_SLEEP
264 static int of_serial_suspend(struct device *dev)
265 {
266 struct of_serial_info *info = dev_get_drvdata(dev);
267 struct uart_8250_port *port8250 = serial8250_get_port(info->line);
268 struct uart_port *port = &port8250->port;
269
270 serial8250_suspend_port(info->line);
271
272 if ((!uart_console(port) || console_suspend_enabled)) {
> 273 pm_runtime_put_sync(&ofdev->dev);
274 clk_disable_unprepare(info->clk);
275 }
276 return 0;
277 }
278

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