netdev - [PATCH net 4/4] bnxt: count Tx drops

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210811193239.3155396-5-kuba@kernel.org>
Date:   Wed, 11 Aug 2021 12:32:39 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     michael.chan@...adcom.com, huangjw@...adcom.com,
        eddie.wai@...adcom.com, prashant@...adcom.com, gospo@...adcom.com,
        netdev@...r.kernel.org, edwin.peer@...adcom.com,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net 4/4] bnxt: count Tx drops

Drivers should count packets they are dropping.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b80ed556c28b..d5049e714c94 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -393,6 +393,7 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	i = skb_get_queue_mapping(skb);
 	if (unlikely(i >= bp->tx_nr_rings)) {
 		dev_kfree_skb_any(skb);
+		atomic_long_inc(&dev->tx_dropped);
 		return NETDEV_TX_OK;
 	}
 
@@ -673,6 +674,7 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	tx_buf->skb = NULL;
 	if (txr->kick_pending)
 		bnxt_txr_db_kick(bp, txr, prod);
+	atomic_long_inc(&dev->tx_dropped);
 	return NETDEV_TX_OK;
 }
 
-- 
2.31.1