vlan: Use bitmask of feature flags instead of seperate feature bits

Herbert Xu points out that the use of seperate feature bits for features
to be propagated to VLAN devices is going to get messy real soon.
Replace the VLAN feature bits by a bitmask of feature flags to be
propagated and restore the old GSO_SHIFT/MASK values.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2b0266484c84..f27fd2009334 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -514,12 +514,10 @@ struct net_device
 #define NETIF_F_NETNS_LOCAL     8192    /* Does not change network namespaces */
 #define NETIF_F_MULTI_QUEUE     16384   /* Has multiple TX/RX queues */
 #define NETIF_F_LRO             32768   /* large receive offload */
-#define NETIF_F_VLAN_TSO        65536   /* Supports TSO for VLANs */
-#define NETIF_F_VLAN_CSUM       131072  /* Supports TX checksumming for VLANs */
 
         /* Segmentation offload features */
-#define NETIF_F_GSO_SHIFT       20
-#define NETIF_F_GSO_MASK        0xfff00000
+#define NETIF_F_GSO_SHIFT       16
+#define NETIF_F_GSO_MASK        0xffff0000
 #define NETIF_F_TSO             (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
 #define NETIF_F_UFO             (SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
 #define NETIF_F_GSO_ROBUST      (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
@@ -747,6 +745,9 @@ struct net_device
         /* rtnetlink link ops */
         const struct rtnl_link_ops *rtnl_link_ops;
 
+        /* VLAN feature mask */
+        unsigned long vlan_features;
+
         /* for setting kernel sock attribute on TCP connection setup */
 #define GSO_MAX_SIZE            65536
         unsigned int            gso_max_size;