vhost: fix TUN=m VHOST_NET=y

drivers/built-in.o: In function `get_tun_socket':
    net.c:(.text+0x15436e): undefined reference to `tun_get_socket'

If tun is a module, vhost must be a module, too.
If tun is built-in or disabled, vhost can be built-in.

Note: TUN || !TUN might look a bit strange until you realize
that boolean logic rules do not apply for tristate variables.

Reported-by: Randy Dunlap <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

0 files changed, 0 insertions, 0 deletions