netdev - [PATCH] vhost: fix TUN=m VHOST

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Date:	Wed, 20 Jan 2010 13:30:38 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: [PATCH] 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 <randy.dunlap@...cle.com>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---

The above was already applied by Rusty, but got lost.
The patch is on top of net-next.

 drivers/vhost/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 9f409f4..9e93553 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -1,6 +1,6 @@
 config VHOST_NET
 	tristate "Host kernel accelerator for virtio net (EXPERIMENTAL)"
-	depends on NET && EVENTFD && EXPERIMENTAL
+	depends on NET && EVENTFD && (TUN || !TUN) && EXPERIMENTAL
 	---help---
 	  This kernel module can be loaded in host kernel to accelerate
 	  guest networking with virtio_net. Not to be confused with virtio_net
-- 
1.6.6.144.g5c3af
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