isdn: mISDN HFC PCI support depends on virt_to_bus()

On powerpc (allyesconfig build) we get this error:

drivers/isdn/hardware/mISDN/hfcpci.c:1991: error: implicit declaration of function 'virt_to_bus'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig
index 1479348..9cd5f5f 100644 (file)
--- a/drivers/isdn/hardware/mISDN/Kconfig
+++ b/drivers/isdn/hardware/mISDN/Kconfig
@@ -7,6 +7,7 @@ config MISDN_HFCPCI
        tristate "Support for HFC PCI cards"
        depends on MISDN
        depends on PCI
+       depends on VIRT_TO_BUS
        help
          Enable support for cards with Cologne Chip AG's
           HFC PCI chip.