On Tue, Dec 13, 2011 at 11:31:03AM +1100, Michael Neuling wrote: > next-20111212 breaks with linking a pmac32_defconfig with: > drivers/built-in.o: In function `fsl8250_handle_irq': > (.text+0x7ba74): undefined reference to `serial8250_modem_status' > drivers/built-in.o: In function `fsl8250_handle_irq': > (.text+0x7baa4): undefined reference to `serial8250_tx_chars' > drivers/built-in.o: In function `fsl8250_handle_irq': > (.text+0x7bab4): undefined reference to `serial8250_rx_chars' > > Caused by: > 9deaa53 serial: add irq handler for Freescale 16550 errata. > > pmac32_defconfig results in SERIAL_8250_FSL=y but SERIAL_8250=m so > 8250_fsl.c doesn't link properly. > > This explicitly makes SERIAL_8250_FSL depends on SERIAL_8250=y. > > Signed-off-by: Michael Neuling <mikey@xxxxxxxxxxx> > --- > I'm not sure this is the right fix as it seems like a Kconfig bug. > > diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig > index a1d55c3..c9046de 100644 > --- a/drivers/tty/serial/Kconfig > +++ b/drivers/tty/serial/Kconfig > @@ -99,7 +99,7 @@ config SERIAL_8250_PNP > > config SERIAL_8250_FSL > bool > - depends on SERIAL_8250 && PPC > + depends on SERIAL_8250=y && PPC Then you can't select SERIAL_8250 as a module at all, right? Perhaps you should allow SERIAL_8250_FSL to be a module as well here? So changing the bool to a tristate should be the correct option? Can you try that? greg k-h -- 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