if (headroom < NET_SKB_PAD)
- headroom = NET_SKB_PAD;
- if (headroom > skb_headroom(skb))
+- delta = headroom - skb_headroom(skb);
+ alloc_headroom = NET_SKB_PAD;
+ if (headroom > skb_headroom(skb) ||
+ (cloned && alloc_headroom > skb_headroom(skb))) {
- delta = headroom - skb_headroom(skb);
++ delta = alloc_headroom - skb_headroom(skb);
+ }
if (delta || cloned)