vxlan: Add missing VNI filter counter update in arp_reduce().

[ Upstream commit b22ea4ef4c3438817fcb604255b55b0058ed8c64 ]

VXLAN stores per-VNI statistics using vxlan_vnifilter_count().
These statistics were not updated when arp_reduce() failed its
pskb_may_pull() call.

Use vxlan_vnifilter_count() to update the VNI counter when that
happens.

Fixes: 4095e0e1328a ("drivers: vxlan: vnifilter: per vni stats")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index afca4f42c31b4d1d3dadc10cbe36b60eb3c76caa..743fcde565b2f545ebc1c69673157112f9b38ecb 100644 (file)
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -1838,6 +1838,8 @@ static int arp_reduce(struct net_device *dev, struct sk_buff *skb, __be32 vni)
 
        if (!pskb_may_pull(skb, arp_hdr_len(dev))) {
                dev_core_stats_tx_dropped_inc(dev);
+               vxlan_vnifilter_count(vxlan, vni, NULL,
+                                     VXLAN_VNI_STATS_TX_DROPS, 0);
                goto out;
        }
        parp = arp_hdr(skb);