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net: reduce structures when XFRM=n

Browse source 
ifdef out
* struct sk_buff::sp		(pointer)
* struct dst_entry::xfrm	(pointer)
* struct sock::sk_policy	(2 pointers)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2008-10-28 13:24:06 -07:00 • committed by David S. Miller
commit def8b4faff
11 changed files with 33 additions and 9 deletions
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3
include/net/dst.h
View file

@ -59,8 +59,9 @@ struct dst_entry
struct neighbour *neighbour;
struct hh_cache *hh;
#ifdef CONFIG_XFRM
struct xfrm_state *xfrm;
#endif
int (*input)(struct sk_buff*);
int (*output)(struct sk_buff*);

2
include/net/sock.h
View file

@ -229,7 +229,9 @@ struct sock {
} sk_backlog;
wait_queue_head_t *sk_sleep;
struct dst_entry *sk_dst_cache;
#ifdef CONFIG_XFRM
struct xfrm_policy *sk_policy[2];
#endif
rwlock_t sk_dst_lock;
atomic_t sk_rmem_alloc;
atomic_t sk_wmem_alloc;

4
include/net/xfrm.h
View file

@ -882,6 +882,7 @@ struct xfrm_dst
u32 path_cookie;
};
#ifdef CONFIG_XFRM
static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
{
dst_release(xdst->route);
@ -894,6 +895,7 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
xdst->partner = NULL;
#endif
}
#endif
extern void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev);
@ -1536,9 +1538,11 @@ static inline void xfrm_states_delete(struct xfrm_state **states, int n)
}
#endif
#ifdef CONFIG_XFRM
static inline struct xfrm_state *xfrm_input_state(struct sk_buff *skb)
{
return skb->sp->xvec[skb->sp->len - 1];
}
#endif
#endif /* _NET_XFRM_H */