net: skb_array: expose peek API

This adds a peek routine to skb_array.h for use with qdisc.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h
index 8621ffd..c7addf3 100644 (file)
--- a/include/linux/skb_array.h
+++ b/include/linux/skb_array.h
@@ -72,6 +72,11 @@ static inline bool __skb_array_empty(struct skb_array *a)
        return !__ptr_ring_peek(&a->ring);
 }
 
+static inline struct sk_buff *__skb_array_peek(struct skb_array *a)
+{
+       return __ptr_ring_peek(&a->ring);
+}
+
 static inline bool skb_array_empty(struct skb_array *a)
 {
        return ptr_ring_empty(&a->ring);