Hi Greg, After merging the tty tree, today's linux-next build (x86_64 allmodconfig) failed like this: .config:4300:warning: symbol value '' invalid for SERIAL_SH_SCI_NR_UARTS * * Restart config... * * * Serial drivers * 8250/16550 and compatible serial support (SERIAL_8250) [M/y/?] m . . . SuperH SCI(F) serial port support (SERIAL_SH_SCI) [M/n/y] m Maximum number of SCI(F) serial ports (SERIAL_SH_SCI_NR_UARTS) [] (NEW) aborted! Console input/output is redirected. Run 'make oldconfig' to update configuration. Caused by commit f6731485a519 ("tty: serial: sh-sci: Hide number of ports config question") I have used the tty tree from next-20171215 for today. -- Cheers, Stephen Rothwell -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html