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[XFRM] netlink: Clear up some of the CONFIG_XFRM_SUB_POLICY ifdef mess

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Moves all of the SUB_POLICY ifdefs related to the attribute size
calculation into a function.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2007-08-22 13:57:04 -07:00 committed by David S. Miller
parent c26445acbc
commit cfbfd45a8c
1 changed files with 13 additions and 15 deletions
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28
net/xfrm/xfrm_user.c
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@ -1224,6 +1224,14 @@ static inline int copy_to_user_sec_ctx(struct xfrm_policy *xp, struct sk_buff *s
}
return 0;
}
static inline size_t userpolicy_type_attrsize(void)
{
#ifdef CONFIG_XFRM_SUB_POLICY
return nla_total_size(sizeof(struct xfrm_userpolicy_type));
#else
return 0;
#endif
}
#ifdef CONFIG_XFRM_SUB_POLICY
static int copy_to_user_policy_type(u8 type, struct sk_buff *skb)
@ -1857,9 +1865,7 @@ static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
len = RTA_SPACE(sizeof(struct xfrm_user_migrate) * num_migrate);
len += NLMSG_SPACE(sizeof(struct xfrm_userpolicy_id));
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
len += userpolicy_type_attrsize();
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
@ -2214,9 +2220,7 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire));
len += RTA_SPACE(xfrm_user_sec_ctx_size(x->security));
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
len += userpolicy_type_attrsize();
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
@ -2322,9 +2326,7 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_eve
len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire));
len += RTA_SPACE(xfrm_user_sec_ctx_size(xp->security));
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
len += userpolicy_type_attrsize();
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
@ -2349,9 +2351,7 @@ static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *
len += RTA_SPACE(headlen);
headlen = sizeof(*id);
}
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
len += userpolicy_type_attrsize();
len += NLMSG_SPACE(headlen);
skb = alloc_skb(len, GFP_ATOMIC);
@ -2401,9 +2401,7 @@ static int xfrm_notify_policy_flush(struct km_event *c)
struct nlmsghdr *nlh;
struct sk_buff *skb;
int len = 0;
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
len += userpolicy_type_attrsize();
len += NLMSG_LENGTH(0);
skb = alloc_skb(len, GFP_ATOMIC);