blob: b11104be9e49b542eddd3f1d53f7626f50f70484 (
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--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1231,24 +1231,7 @@ void netlink_detachskb(struct sock *sk,
static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
{
- int delta;
-
WARN_ON(skb->sk != NULL);
- delta = skb->end - skb->tail;
- if (is_vmalloc_addr(skb->head) || delta * 2 < skb->truesize)
- return skb;
-
- if (skb_shared(skb)) {
- struct sk_buff *nskb = skb_clone(skb, allocation);
- if (!nskb)
- return skb;
- consume_skb(skb);
- skb = nskb;
- }
-
- if (!pskb_expand_head(skb, 0, -delta, allocation))
- skb->truesize -= delta;
-
return skb;
}
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