rsi_dynamic_s
struct rsi_dynamic_s *dynamic_frame;
skb = dev_alloc_skb(sizeof(struct rsi_dynamic_s));
memset(skb->data, 0, sizeof(struct rsi_dynamic_s));
dynamic_frame = (struct rsi_dynamic_s *)skb->data;
skb_put(skb, sizeof(struct rsi_dynamic_s));