datapath: Add version check for struct netdev_ops.

Linux 3.1 drops the symbol HAVE_NET_DEVICE_OPS that lets us know
whether struct netdev_ops is present.  As a result, we need to
replace it with an explicit version check.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>

diff --git a/datapath/vport-internal_dev.c b/datapath/vport-internal_dev.c
index b503b87..2d46343 100644 (file)
--- a/datapath/vport-internal_dev.c
+++ b/datapath/vport-internal_dev.c
@@ -22,6 +22,10 @@
 #include "vport-internal_dev.h"
 #include "vport-netdev.h"
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)
+#define HAVE_NET_DEVICE_OPS
+#endif
+
 struct internal_dev {
        struct vport *vport;
        struct net_device_stats stats;