Hi Greg, After merging the tty tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/char/mwave/mwavedd.c: In function 'register_serial_portandirq': drivers/char/mwave/mwavedd.c:472:2: error: implicit declaration of function 'serial8250_register_port' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors drivers/misc/ibmasm/uart.c: In function 'ibmasm_register_uart': drivers/misc/ibmasm/uart.c:57:2: error: implicit declaration of function 'serial8250_register_port' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors Caused by commit 2655a2c76f80 ("8250: use the 8250 register interface not the legacy one"). Grep is your friend. I have used the tty tree from next-20120712 for today. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au