[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/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index 4591437..3caeb52 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -73,7 +73,7 @@
sppp_close(dev);
sppp_detach(dev);
- dev->rebuild_header = NULL;
+
dev->change_mtu = state(hdlc)->old_change_mtu;
dev->mtu = HDLC_MAX_MTU;
dev->hard_header_len = 16;