openwrtv3/target/linux/generic/patches-4.0/653-disable_netlink_trim.patch
Imre Kaloz 588acc2cba generic/4.0: update to 4.0.4
Update kernel sources and refresh some patches.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 45761
2015-05-26 09:31:16 +00:00

30 lines
664 B
Diff

--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1710,27 +1710,7 @@ 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);
- if (netlink_skb_is_mmaped(skb))
- return skb;
-
- 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;
}