The next-20080314 tree build fails 

drivers/serial/serial_core.c: In function `uart_add_one_port':
drivers/serial/serial_core.c:2359: error: invalid lvalue in assignment
make[2]: *** [drivers/serial/serial_core.o] Error 1

The config # CONFIG_PM was not set.The code which is causing the 
build failure is 

	device_can_wakeup(tty_dev) = 1;

when the CONFIG_PM is set the macro is preprocessed as

#define device_can_wakeup(dev) \
        ((dev)->power.can_wakeup)

and when not set, it becomes 0 = 1 

#define device_can_wakeup(dev)                  0

-- 
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.
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