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>

3 files changed, 3 insertions, 3 deletions

diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index 63e532a69fd..0b8a91ddff4 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -175,7 +175,7 @@ out:
         return 0;
 }
 
-static struct packet_type dsa_packet_type = {
+static struct packet_type dsa_packet_type __read_mostly = {
         .type   = cpu_to_be16(ETH_P_DSA),
         .func   = dsa_rcv,
 };
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index 6197f9a7ef4..16fcb6d196d 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -194,7 +194,7 @@ out:
         return 0;
 }
 
-static struct packet_type edsa_packet_type = {
+static struct packet_type edsa_packet_type __read_mostly = {
         .type   = cpu_to_be16(ETH_P_EDSA),
         .func   = edsa_rcv,
 };
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index d7e7f424ff0..a6d959da678 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -111,7 +111,7 @@ out:
         return 0;
 }
 
-static struct packet_type trailer_packet_type = {
+static struct packet_type trailer_packet_type __read_mostly = {
         .type   = cpu_to_be16(ETH_P_TRAILER),
         .func   = trailer_rcv,
 };