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arp: Kill arp_find

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There are no more callers so kill this function.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2015-03-02 00:12:05 -06:00 committed by David S. Miller
parent d476059e77
commit 59b2af26b9
2 changed files with 0 additions and 66 deletions
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1
include/net/arp.h
View File

@ -47,7 +47,6 @@ static inline struct neighbour *__ipv4_neigh_lookup(struct net_device *dev, u32
} }
void arp_init(void); void arp_init(void);
int arp_find(unsigned char *haddr, struct sk_buff *skb);
int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg); int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);
void arp_send(int type, int ptype, __be32 dest_ip, void arp_send(int type, int ptype, __be32 dest_ip,
struct net_device *dev, __be32 src_ip, struct net_device *dev, __be32 src_ip,

65
net/ipv4/arp.c
View File

@ -396,71 +396,6 @@ static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev)
return flag; return flag;
} }
/* OBSOLETE FUNCTIONS */
/*
* Find an arp mapping in the cache. If not found, post a request.
*
* It is very UGLY routine: it DOES NOT use skb->dst->neighbour,
* even if it exists. It is supposed that skb->dev was mangled
* by a virtual device (eql, shaper). Nobody but broken devices
* is allowed to use this function, it is scheduled to be removed. --ANK
*/
static int arp_set_predefined(int addr_hint, unsigned char *haddr,
__be32 paddr, struct net_device *dev)
{
switch (addr_hint) {
case RTN_LOCAL:
pr_debug("arp called for own IP address\n");
memcpy(haddr, dev->dev_addr, dev->addr_len);
return 1;
case RTN_MULTICAST:
arp_mc_map(paddr, haddr, dev, 1);
return 1;
case RTN_BROADCAST:
memcpy(haddr, dev->broadcast, dev->addr_len);
return 1;
}
return 0;
}
int arp_find(unsigned char *haddr, struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
__be32 paddr;
struct neighbour *n;
if (!skb_dst(skb)) {
pr_debug("arp_find is called with dst==NULL\n");
kfree_skb(skb);
return 1;
}
paddr = rt_nexthop(skb_rtable(skb), ip_hdr(skb)->daddr);
if (arp_set_predefined(inet_addr_type(dev_net(dev), paddr), haddr,
paddr, dev))
return 0;
n = __neigh_lookup(&arp_tbl, &paddr, dev, 1);
if (n) {
n->used = jiffies;
if (n->nud_state & NUD_VALID || neigh_event_send(n, skb) == 0) {
neigh_ha_snapshot(haddr, n, dev);
neigh_release(n);
return 0;
}
neigh_release(n);
} else
kfree_skb(skb);
return 1;
}
EXPORT_SYMBOL(arp_find);
/* END OF OBSOLETE FUNCTIONS */
/* /*
* Check if we can use proxy ARP for this path * Check if we can use proxy ARP for this path
*/ */