netdev - [PATCH net] net: libwx: fix multicast packets received count

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Message-ID: <FD180EC06F384721+20250709063512.3343-1-jiawenwu@trustnetic.com>
Date: Wed,  9 Jul 2025 14:35:12 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org,
	andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org
Cc: mengyuanlou@...-swift.com,
	Jiawen Wu <jiawenwu@...stnetic.com>,
	stable@...r.kernel.org
Subject: [PATCH net] net: libwx: fix multicast packets received count

Multicast good packets received by PF rings that pass ethternet MAC
address filtering are counted for rtnl_link_stats64.multicast. The
counter is not cleared on read. Fix the duplicate counting on updating
statistics.

Fixes: 46b92e10d631 ("net: libwx: support hardware statistics")
Cc: stable@...r.kernel.org
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
 drivers/net/ethernet/wangxun/libwx/wx_hw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
index 0f4be72116b8..a9519997286b 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
@@ -2778,6 +2778,7 @@ void wx_update_stats(struct wx *wx)
 		hwstats->fdirmiss += rd32(wx, WX_RDB_FDIR_MISS);
 	}
 
+	hwstats->qmprc = 0;
 	for (i = wx->num_vfs * wx->num_rx_queues_per_pool;
 	     i < wx->mac.max_rx_queues; i++)
 		hwstats->qmprc += rd32(wx, WX_PX_MPRC(i));
-- 
2.48.1