netdev - [PATCH v3] net: dsa: realtek: rtl8365mb: remove ifOutDiscards from rx

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Message-ID: <d2339247-19a6-4614-a91c-86d79c2b4d00@yahoo.com>
Date: Sat, 3 Jan 2026 20:17:49 +0100
From: Mieczyslaw Nalewaj <namiltd@...oo.com>
To: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc: "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
 "edumazet@...gle.com" <edumazet@...gle.com>,
 "alsi@...g-olufsen.dk" <alsi@...g-olufsen.dk>,
 "olteanv@...il.com" <olteanv@...il.com>, "kuba@...nel.org"
 <kuba@...nel.org>, "pabeni@...hat.com" <pabeni@...hat.com>,
 Andrew Lunn <andrew@...n.ch>, "davem@...emloft.net" <davem@...emloft.net>
Subject: [PATCH v3] net: dsa: realtek: rtl8365mb: remove ifOutDiscards from
 rx_packets

rx_packets should report the number of frames successfully received:
unicast + multicast + broadcast. Subtracting ifOutDiscards (a TX
counter) is incorrect and can undercount RX packets. RX drops are
already reported via rx_dropped (e.g. etherStatsDropEvents), so
there is no need to adjust rx_packets.

This patch removes the subtraction of ifOutDiscards from rx_packets
in rtl8365mb_stats_update().

Fixes: 4af2950c50c8634ed2865cf81e607034f78b84aa
  ("net: dsa: realtek-smi: add rtl8365mb subdriver for RTL8365MB-VC")

Signed-off-by: Mieczyslaw Nalewaj <namiltd@...oo.com>
---
  drivers/net/dsa/realtek/rtl8365mb.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/net/dsa/realtek/rtl8365mb.c
+++ b/drivers/net/dsa/realtek/rtl8365mb.c
@@ -2180,8 +2180,7 @@ static void rtl8365mb_stats_update(struc

      stats->rx_packets = cnt[RTL8365MB_MIB_ifInUcastPkts] +
                  cnt[RTL8365MB_MIB_ifInMulticastPkts] +
-                cnt[RTL8365MB_MIB_ifInBroadcastPkts] -
-                cnt[RTL8365MB_MIB_ifOutDiscards];
+                cnt[RTL8365MB_MIB_ifInBroadcastPkts];

      stats->tx_packets = cnt[RTL8365MB_MIB_ifOutUcastPkts] +
                  cnt[RTL8365MB_MIB_ifOutMulticastPkts] +