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[IPSEC]: Move xfrm_state_check into xfrm_output.c

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The functions xfrm_state_check and xfrm_state_check_space are only used by
the output code in xfrm_output.c so we can move them over.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-10-08 17:25:08 -07:00
committed by David S. Miller
parent 406ef77c89
commit 83815dea47
3 changed files with 22 additions and 24 deletions
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22
net/xfrm/xfrm_output.c
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@@ -18,6 +18,28 @@
#include <net/dst.h>
#include <net/xfrm.h>
static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
{
int nhead = x->props.header_len + LL_RESERVED_SPACE(skb->dst->dev)
- skb_headroom(skb);
if (nhead > 0)
return pskb_expand_head(skb, nhead, 0, GFP_ATOMIC);
/* Check tail too... */
return 0;
}
static int xfrm_state_check(struct xfrm_state *x, struct sk_buff *skb)
{
int err = xfrm_state_check_expire(x);
if (err < 0)
goto err;
err = xfrm_state_check_space(x, skb);
err:
return err;
}
int xfrm_output(struct sk_buff *skb)
{
struct dst_entry *dst = skb->dst;