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/phonet/af_phonet.c b/net/phonet/af_phonet.c
index 81795ea87794..a662e62a99cf 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -382,9 +382,8 @@ out:
         return NET_RX_DROP;
 }
 
-static struct packet_type phonet_packet_type = {
+static struct packet_type phonet_packet_type __read_mostly = {
         .type = cpu_to_be16(ETH_P_PHONET),
-        .dev = NULL,
         .func = phonet_rcv,
 };