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authorJulia Lawall <julia.lawall@lip6.fr>2016-10-15 17:40:30 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-15 17:49:57 -0400
commitab530f63e7fbac2b0a233da9d31e21a86d1863f5 (patch)
tree6404a17f2887db2ac5020f8b28be7f79e049ced3 /drivers/net/ipvlan
parentf9dbd5a343eeb3e8bf8853256d05188dd27c1ecf (diff)
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ipvlan: constify l3mdev_ops structure
This l3mdev_ops structure is only stored in the l3mdev_ops field of a net_device structure. This field is declared const, so the l3mdev_ops structure can be declared as const also. Additionally drop the __read_mostly annotation. The semantic patch that adds const is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct l3mdev_ops i@p = { ... }; @ok@ identifier r.i; struct net_device *e; position p; @@ e->l3mdev_ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct l3mdev_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct l3mdev_ops i = { ... }; // </smpl> The effect on the layout of the .o file is shown by the following output of the size command, first before then after the transformation: text data bss dec hex filename 7364 466 52 7882 1eca drivers/net/ipvlan/ipvlan_main.o 7412 434 52 7898 1eda drivers/net/ipvlan/ipvlan_main.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ipvlan')
-rw-r--r--drivers/net/ipvlan/ipvlan_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index f442eb366863..ab90b22e778c 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -26,7 +26,7 @@ static struct nf_hook_ops ipvl_nfops[] __read_mostly = {
},
};
-static struct l3mdev_ops ipvl_l3mdev_ops __read_mostly = {
+static const struct l3mdev_ops ipvl_l3mdev_ops = {
.l3mdev_l3_rcv = ipvlan_l3_rcv,
};