openwrtv4/target/linux/generic/pending-3.18/653-disable_netlink_trim.patch
Koen Vandeputte 548182bc6d kernel: bump 3.18 to 3.18.119
Refreshed all patches.

Compile-tested on: adm5120, adm8668, au1000, mcs814x, ppc40x, ppc44x, xburst
Runtime-tested on: none

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-08-20 13:03:23 +02:00

26 lines
611 B
Diff

--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1154,23 +1154,7 @@ 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;
}