linux-kernel - [PATCH net-next] net: dlink: count dropped packets on skb allocation failure

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Message-ID: <20250910054836.6599-2-yyyynoom@gmail.com>
Date: Wed, 10 Sep 2025 14:48:37 +0900
From: Yeounsu Moon <yyyynoom@...il.com>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Yeounsu Moon <yyyynoom@...il.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next] net: dlink: count dropped packets on skb allocation failure

Track dropped packet statistics when skb allocation fails
in the receive path.

Tested-on: D-Link DGE-550T Rev-A3
Signed-off-by: Yeounsu Moon <yyyynoom@...il.com>
---
 drivers/net/ethernet/dlink/dl2k.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index 6bbf6e5584e5..47d9eef2e725 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -1009,6 +1009,7 @@ receive_packet (struct net_device *dev)
 			skb = netdev_alloc_skb_ip_align(dev, np->rx_buf_sz);
 			if (skb == NULL) {
 				np->rx_ring[entry].fraginfo = 0;
+				dev->stats.rx_dropped++;
 				printk (KERN_INFO
 					"%s: receive_packet: "
 					"Unable to re-allocate Rx skbuff.#%d\n",
-- 
2.51.0