net: constify skbuff and Qdisc elements
Preliminary patch before tcp constification
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 4fc88f3..2eb207e 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -46,14 +46,14 @@
struct Qdisc {
int (*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
struct sk_buff * (*dequeue)(struct Qdisc *dev);
- unsigned flags;
+ unsigned int flags;
#define TCQ_F_BUILTIN 1
#define TCQ_F_INGRESS 2
#define TCQ_F_CAN_BYPASS 4
#define TCQ_F_MQROOT 8
#define TCQ_F_WARN_NONWC (1 << 16)
int padded;
- struct Qdisc_ops *ops;
+ const struct Qdisc_ops *ops;
struct qdisc_size_table __rcu *stab;
struct list_head list;
u32 handle;
@@ -224,7 +224,7 @@
long data[];
};
-static inline int qdisc_qlen(struct Qdisc *q)
+static inline int qdisc_qlen(const struct Qdisc *q)
{
return q->q.qlen;
}
@@ -239,12 +239,12 @@
return &qdisc->q.lock;
}
-static inline struct Qdisc *qdisc_root(struct Qdisc *qdisc)
+static inline struct Qdisc *qdisc_root(const struct Qdisc *qdisc)
{
return qdisc->dev_queue->qdisc;
}
-static inline struct Qdisc *qdisc_root_sleeping(struct Qdisc *qdisc)
+static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
{
return qdisc->dev_queue->qdisc_sleeping;
}
@@ -260,7 +260,7 @@
* root. This is enforced by holding the RTNL semaphore, which
* all users of this lock accessor must do.
*/
-static inline spinlock_t *qdisc_root_lock(struct Qdisc *qdisc)
+static inline spinlock_t *qdisc_root_lock(const struct Qdisc *qdisc)
{
struct Qdisc *root = qdisc_root(qdisc);
@@ -268,7 +268,7 @@
return qdisc_lock(root);
}
-static inline spinlock_t *qdisc_root_sleeping_lock(struct Qdisc *qdisc)
+static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc)
{
struct Qdisc *root = qdisc_root_sleeping(qdisc);
@@ -276,17 +276,17 @@
return qdisc_lock(root);
}
-static inline struct net_device *qdisc_dev(struct Qdisc *qdisc)
+static inline struct net_device *qdisc_dev(const struct Qdisc *qdisc)
{
return qdisc->dev_queue->dev;
}
-static inline void sch_tree_lock(struct Qdisc *q)
+static inline void sch_tree_lock(const struct Qdisc *q)
{
spin_lock_bh(qdisc_root_sleeping_lock(q));
}
-static inline void sch_tree_unlock(struct Qdisc *q)
+static inline void sch_tree_unlock(const struct Qdisc *q)
{
spin_unlock_bh(qdisc_root_sleeping_lock(q));
}
@@ -319,7 +319,7 @@
}
static inline struct Qdisc_class_common *
-qdisc_class_find(struct Qdisc_class_hash *hash, u32 id)
+qdisc_class_find(const struct Qdisc_class_hash *hash, u32 id)
{
struct Qdisc_class_common *cl;
struct hlist_node *n;
@@ -393,7 +393,7 @@
}
/* Are any of the TX qdiscs changing? */
-static inline bool qdisc_tx_changing(struct net_device *dev)
+static inline bool qdisc_tx_changing(const struct net_device *dev)
{
unsigned int i;
for (i = 0; i < dev->num_tx_queues; i++) {