From: Alexander Lobakin <alobakin@dlink.ru>
Date: Wed, 15 Jan 2020 11:56:52 +0300
Subject: net: dsa: tag_qca: fix doubled Tx statistics
Git-commit: bd5874da57edd001b35cf28ae737779498c16a56
Patch-mainline: 5.5-rc7
References: networking-stable-20_01_20

DSA subsystem takes care of netdev statistics since commit 4ed70ce9f01c
("net: dsa: Refactor transmit path to eliminate duplication"), so
any accounting inside tagger callbacks is redundant and can lead to
messing up the stats.
This bug is present in Qualcomm tagger since day 0.

Fixes: cafdc45c949b ("net-next: dsa: add Qualcomm tag RX/TX handler")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 net/dsa/tag_qca.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -41,9 +41,6 @@ static struct sk_buff *qca_tag_xmit(stru
 	struct dsa_slave_priv *p = netdev_priv(dev);
 	u16 *phdr, hdr;
 
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
 	if (skb_cow_head(skb, 0) < 0)
 		goto out_free;