[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>

1 files changed, 7 insertions, 4 deletions

diff --git a/net/802/fc.c b/net/802/fc.c
index 675d9ba8e591..cb3475ea6fda 100644
--- a/net/802/fc.c
+++ b/net/802/fc.c
@@ -35,7 +35,7 @@
 
 static int fc_header(struct sk_buff *skb, struct net_device *dev,
                      unsigned short type,
-                     void *daddr, void *saddr, unsigned len)
+                     const void *daddr, const void *saddr, unsigned len)
 {
         struct fch_hdr *fch;
         int hdr_len;
@@ -95,11 +95,14 @@ static int fc_rebuild_header(struct sk_buff *skb)
 #endif
 }
 
+static const struct header_ops fc_header_ops = {
+        .create  = fc_header,
+        .rebuild = fc_rebuild_header,
+};
+
 static void fc_setup(struct net_device *dev)
 {
-        dev->hard_header        = fc_header;
-        dev->rebuild_header     = fc_rebuild_header;
-
+        dev->header_ops         = &fc_header_ops;
         dev->type               = ARPHRD_IEEE802;
         dev->hard_header_len    = FC_HLEN;
         dev->mtu                = 2024;