[NET]: Move hardware header operations out of netdevice.
Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 9e22526..ab61809 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -97,10 +97,9 @@
/* Calculate maximal size of packet seen by hard_start_xmit
routine of this device.
*/
-static inline unsigned psched_mtu(struct net_device *dev)
+static inline unsigned psched_mtu(const struct net_device *dev)
{
- unsigned mtu = dev->mtu;
- return dev->hard_header ? mtu + dev->hard_header_len : mtu;
+ return dev->mtu + dev->hard_header_len;
}
#endif