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>
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index cf05c43..3e0671d 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1860,12 +1860,12 @@
.notifier_call = ddp_device_event,
};
-static struct packet_type ltalk_packet_type = {
+static struct packet_type ltalk_packet_type __read_mostly = {
.type = cpu_to_be16(ETH_P_LOCALTALK),
.func = ltalk_rcv,
};
-static struct packet_type ppptalk_packet_type = {
+static struct packet_type ppptalk_packet_type __read_mostly = {
.type = cpu_to_be16(ETH_P_PPPTALK),
.func = atalk_rcv,
};