linux-kernel - [PATCH net-next 07/10] net: vxlan: use vxlan_kfree_skb() in vxlan

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Message-Id: <20240815124302.982711-8-dongml2@chinatelecom.cn>
Date: Thu, 15 Aug 2024 20:42:59 +0800
From: Menglong Dong <menglong8.dong@...il.com>
To: kuba@...nel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	pabeni@...hat.com,
	dsahern@...nel.org,
	dongml2@...natelecom.cn,
	idosch@...dia.com,
	amcohen@...dia.com,
	gnault@...hat.com,
	bpoirier@...dia.com,
	b.galvani@...il.com,
	razor@...ckwall.org,
	petrm@...dia.com,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH net-next 07/10] net: vxlan: use vxlan_kfree_skb() in vxlan_xmit()

Replace kfree_skb() with vxlan_kfree_skb() in vxlan_xmit(). Following
new skb drop reasons are introduced:

/* txinfo is missed in "external" mode */
VXLAN_DROP_TXINFO
/* no remote found */
VXLAN_DROP_REMOTE

Signed-off-by: Menglong Dong <dongml2@...natelecom.cn>
---
 drivers/net/vxlan/drop.h       | 2 ++
 drivers/net/vxlan/vxlan_core.c | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/vxlan/drop.h b/drivers/net/vxlan/drop.h
index cae1e0ea8c56..da30cb4a9ed9 100644
--- a/drivers/net/vxlan/drop.h
+++ b/drivers/net/vxlan/drop.h
@@ -12,6 +12,8 @@
 	R(VXLAN_DROP_FLAGS)			\
 	R(VXLAN_DROP_VNI)			\
 	R(VXLAN_DROP_MAC)			\
+	R(VXLAN_DROP_TXINFO)			\
+	R(VXLAN_DROP_REMOTE)			\
 	/* deliberate comment for trailing \ */
 
 enum vxlan_drop_reason {
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 9a61f04bb95d..22e2bf532ac3 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -2729,7 +2729,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 			if (info && info->mode & IP_TUNNEL_INFO_TX)
 				vxlan_xmit_one(skb, dev, vni, NULL, false);
 			else
-				kfree_skb(skb);
+				vxlan_kfree_skb(skb, VXLAN_DROP_TXINFO);
 			return NETDEV_TX_OK;
 		}
 	}
@@ -2792,7 +2792,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 			dev_core_stats_tx_dropped_inc(dev);
 			vxlan_vnifilter_count(vxlan, vni, NULL,
 					      VXLAN_VNI_STATS_TX_DROPS, 0);
-			kfree_skb(skb);
+			vxlan_kfree_skb(skb, VXLAN_DROP_REMOTE);
 			return NETDEV_TX_OK;
 		}
 	}
@@ -2815,7 +2815,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 		if (fdst)
 			vxlan_xmit_one(skb, dev, vni, fdst, did_rsc);
 		else
-			kfree_skb(skb);
+			vxlan_kfree_skb(skb, VXLAN_DROP_REMOTE);
 	}
 
 	return NETDEV_TX_OK;
-- 
2.39.2