net: Make dst_alloc() take more explicit initializations.

Now the dst->dev, dev->obsolete, and dst->flags values can
be specified as well.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 5 deletions

diff --git a/net/core/dst.c b/net/core/dst.c
index 91104d35de7d..9505778ec800 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -166,7 +166,8 @@ EXPORT_SYMBOL(dst_discard);
 
 const u32 dst_default_metrics[RTAX_MAX];
 
-void *dst_alloc(struct dst_ops *ops, int initial_ref)
+void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
+                int initial_ref, int initial_obsolete, int flags)
 {
         struct dst_entry *dst;
 
@@ -177,12 +178,19 @@ void *dst_alloc(struct dst_ops *ops, int initial_ref)
         dst = kmem_cache_zalloc(ops->kmem_cachep, GFP_ATOMIC);
         if (!dst)
                 return NULL;
-        atomic_set(&dst->__refcnt, initial_ref);
         dst->ops = ops;
-        dst->lastuse = jiffies;
-        dst->path = dst;
-        dst->input = dst->output = dst_discard;
+        dst->dev = dev;
+        if (dev)
+                dev_hold(dev);
         dst_init_metrics(dst, dst_default_metrics, true);
+        dst->path = dst;
+        dst->input = dst_discard;
+        dst->output = dst_discard;
+
+        dst->obsolete = initial_obsolete;
+        atomic_set(&dst->__refcnt, initial_ref);
+        dst->lastuse = jiffies;
+        dst->flags = flags;
 #if RT_CACHE_DEBUG >= 2
         atomic_inc(&dst_total);
 #endif