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/ax25/af_ax25.c b/net/ax25/af_ax25.c
index d127fd3ba5c6..8f8f63ff6566 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1985,9 +1985,8 @@ static const struct proto_ops ax25_proto_ops = {
 /*
  *      Called by socket.c on kernel start up
  */
-static struct packet_type ax25_packet_type = {
+static struct packet_type ax25_packet_type __read_mostly = {
         .type   =       cpu_to_be16(ETH_P_AX25),
-        .dev    =       NULL,                           /* All devices */
         .func   =       ax25_kiss_rcv,
 };