net: convert usage of packet_type to read_mostly

Protocols that use packet_type can be __read_mostly section for better
locality. Elminate any unnecessary initializations of NULL.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index ec233b64f853..9647d911f916 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -2112,9 +2112,8 @@ static struct notifier_block dn_dev_notifier = {
 
 extern int dn_route_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 
-static struct packet_type dn_dix_packet_type = {
+static struct packet_type dn_dix_packet_type __read_mostly = {
         .type =         cpu_to_be16(ETH_P_DNA_RT),
-        .dev =          NULL,           /* All devices */
         .func =         dn_route_rcv,
 };