qdisc: constify meta_type_ops structures

The meta_type_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index f2aabc0..a309a07 100644 (file)
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -796,7 +796,7 @@ struct meta_type_ops {
        int     (*dump)(struct sk_buff *, struct meta_value *, int);
 };
 
-static struct meta_type_ops __meta_type_ops[TCF_META_TYPE_MAX + 1] = {
+static const struct meta_type_ops __meta_type_ops[TCF_META_TYPE_MAX + 1] = {
        [TCF_META_TYPE_VAR] = {
                .destroy = meta_var_destroy,
                .compare = meta_var_compare,
@@ -812,7 +812,7 @@ static struct meta_type_ops __meta_type_ops[TCF_META_TYPE_MAX + 1] = {
        }
 };
 
-static inline struct meta_type_ops *meta_type_ops(struct meta_value *v)
+static inline const struct meta_type_ops *meta_type_ops(struct meta_value *v)
 {
        return &__meta_type_ops[meta_type(v)];
 }
@@ -870,7 +870,7 @@ static int em_meta_match(struct sk_buff *skb, struct tcf_ematch *m,
 static void meta_delete(struct meta_match *meta)
 {
        if (meta) {
-               struct meta_type_ops *ops = meta_type_ops(&meta->lvalue);
+               const struct meta_type_ops *ops = meta_type_ops(&meta->lvalue);
 
                if (ops && ops->destroy) {
                        ops->destroy(&meta->lvalue);
@@ -964,7 +964,7 @@ static int em_meta_dump(struct sk_buff *skb, struct tcf_ematch *em)
 {
        struct meta_match *meta = (struct meta_match *) em->data;
        struct tcf_meta_hdr hdr;
-       struct meta_type_ops *ops;
+       const struct meta_type_ops *ops;
 
        memset(&hdr, 0, sizeof(hdr));
        memcpy(&hdr.left, &meta->lvalue.hdr, sizeof(hdr.left));