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| author |   David S. Miller <davem@davemloft.net> | 2015-07-31 23:52:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-31 23:52:20 -0700 |
| commit | 5510b3c2a173921374ec847848fb20b98e1c698a (patch) | |
| tree | c9e185281ef17280ce0dc30be7923124874736b0 /net/ipv4/arp.c | |
| parent | Merge branch 'ipv6-auto-flow-labels' (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | linux-dev-5510b3c2a173921374ec847848fb20b98e1c698a.tar.xz linux-dev-5510b3c2a173921374ec847848fb20b98e1c698a.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
arch/s390/net/bpf_jit_comp.c
drivers/net/ethernet/ti/netcp_ethss.c
net/bridge/br_multicast.c
net/ipv4/ip_fragment.c
All four conflicts were cases of simple overlapping
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/arp.c')
| -rw-r--r-- | net/ipv4/arp.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 1d59e50ce8b7..34a308573f4b 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -1026,14 +1026,16 @@ static int arp_req_get(struct arpreq *r, struct net_device *dev) neigh = neigh_lookup(&arp_tbl, &ip, dev); if (neigh) { - read_lock_bh(&neigh->lock); - memcpy(r->arp_ha.sa_data, neigh->ha, dev->addr_len); - r->arp_flags = arp_state_to_flags(neigh); - read_unlock_bh(&neigh->lock); - r->arp_ha.sa_family = dev->type; - strlcpy(r->arp_dev, dev->name, sizeof(r->arp_dev)); + if (!(neigh->nud_state & NUD_NOARP)) { + read_lock_bh(&neigh->lock); + memcpy(r->arp_ha.sa_data, neigh->ha, dev->addr_len); + r->arp_flags = arp_state_to_flags(neigh); + read_unlock_bh(&neigh->lock); + r->arp_ha.sa_family = dev->type; + strlcpy(r->arp_dev, dev->name, sizeof(r->arp_dev)); + err = 0; + } neigh_release(neigh); - err = 0; } return err; } |