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Diffstat (limited to 'net/ipv4/arp.c')
-rw-r--r--net/ipv4/arp.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index ce6fbdfd40b8..1169ed41d587 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -321,7 +321,7 @@ static void arp_error_report(struct neighbour *neigh, struct sk_buff *skb)
static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
{
__be32 saddr = 0;
- u8 *dst_ha = NULL;
+ u8 dst_ha[MAX_ADDR_LEN];
struct net_device *dev = neigh->dev;
__be32 target = *(__be32 *)neigh->primary_key;
int probes = atomic_read(&neigh->probes);
@@ -363,9 +363,9 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
if (probes < 0) {
if (!(neigh->nud_state & NUD_VALID))
pr_debug("trying to ucast probe in NUD_INVALID\n");
- dst_ha = neigh->ha;
- read_lock_bh(&neigh->lock);
+ neigh_ha_snapshot(dst_ha, neigh, dev);
} else {
+ memset(dst_ha, 0, dev->addr_len);
probes -= neigh->parms->app_probes;
if (probes < 0) {
#ifdef CONFIG_ARPD
@@ -377,8 +377,6 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
arp_send(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr,
dst_ha, dev->dev_addr, NULL);
- if (dst_ha)
- read_unlock_bh(&neigh->lock);
}
static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)