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net: dsa: tag_qca: fix doubled Tx statistics

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[ Upstream commit bd5874da57edd001b35cf28ae737779498c16a56 ]

DSA subsystem takes care of netdev statistics since commit 4ed70ce9f0
("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: cafdc45c94 ("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Lobakin 2020-01-15 11:56:52 +03:00 • committed by Greg Kroah-Hartman
commit 0eb8f098a2
1 changed files with 0 additions and 3 deletions
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3
net/dsa/tag_qca.c
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@ -41,9 +41,6 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev)
struct dsa_port *dp = dsa_slave_to_port(dev);
u16 *phdr, hdr;
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
if (skb_cow_head(skb, 0) < 0)
return NULL;