kernel: bump 4.4 to 4.4.108
[openwrt/openwrt.git] / target / linux / generic / pending-4.4 / 653-disable_netlink_trim.patch
1 --- a/net/netlink/af_netlink.c
2 +++ b/net/netlink/af_netlink.c
3 @@ -1228,24 +1228,7 @@ void netlink_detachskb(struct sock *sk,
4
5 static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
6 {
7 - int delta;
8 -
9 WARN_ON(skb->sk != NULL);
10 - delta = skb->end - skb->tail;
11 - if (is_vmalloc_addr(skb->head) || delta * 2 < skb->truesize)
12 - return skb;
13 -
14 - if (skb_shared(skb)) {
15 - struct sk_buff *nskb = skb_clone(skb, allocation);
16 - if (!nskb)
17 - return skb;
18 - consume_skb(skb);
19 - skb = nskb;
20 - }
21 -
22 - if (!pskb_expand_head(skb, 0, -delta, allocation))
23 - skb->truesize -= delta;
24 -
25 return skb;
26 }
27