Hi Randy, On 2/13/22 20:39, Randy Dunlap wrote: > There is a build error when using a kernel .config file from > 'kernel test robot' for a different build problem: > > hppa64-linux-ld: drivers/tty/serial/8250/8250_gsc.o: in function `.LC3': > (.data.rel.ro+0x18): undefined reference to `iosapic_serial_irq' > > when: > CONFIG_GSC=y > CONFIG_SERIO_GSCPS2=y > CONFIG_SERIAL_8250_GSC=y > CONFIG_PCI is not set > and hence PCI_LBA is not set. > IOSAPIC depends on PCI_LBA, so IOSAPIC is not set/enabled. > > Making SERIAL_8250_GSC depend on PCI_LBA prevents the build error. It maybe makes the build error go away, but ... > Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > Cc: Helge Deller <deller@xxxxxx> > Cc: linux-parisc@xxxxxxxxxxxxxxx > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: linux-serial@xxxxxxxxxxxxxxx > Cc: Jiri Slaby <jirislaby@xxxxxxxxxx> > Cc: Johan Hovold <johan@xxxxxxxxxx> > --- > drivers/tty/serial/8250/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- linux-next-20220211.orig/drivers/tty/serial/8250/Kconfig > +++ linux-next-20220211/drivers/tty/serial/8250/Kconfig > @@ -118,7 +118,7 @@ config SERIAL_8250_CONSOLE > > config SERIAL_8250_GSC > tristate > - depends on SERIAL_8250 && GSC > + depends on SERIAL_8250 && GSC && PCI_LBA > default SERIAL_8250 The serial device is on the GSC bus, so if you make it dependend on the PCI bus it will not be useable on machines which only have a GSC bus... We need another patch. Do you have a link to the build error? Helge
