[PATCH] serial: parisc: GSC: fix build when PCI_LBA is not set

[Randy Dunlap]

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.

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
 
 config SERIAL_8250_DMA