openwrtv4/target/linux/generic/patches-3.7/653-disable_netlink_trim.patch
Felix Fietkau 8933b918cd kernel: use -ffunction-sections, -fdata-sections and --gc-sections on mips
in combination with kernel symbol export stripping this significantly reduces
the kernel image size

SVN-Revision: 35320
2013-01-26 16:26:13 +00:00

28 lines
575 B
Diff

--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -895,25 +895,7 @@ void netlink_detachskb(struct sock *sk,
static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
{
- int delta;
-
skb_orphan(skb);
-
- delta = skb->end - skb->tail;
- if (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;
}