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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Eric Dumazet <edumazet@google.com>,
        "David S. Miller" <davem@davemloft.net>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 4.14 159/496] r8152: fix tx packets accounting
Date:   Mon, 28 May 2018 11:59:04 +0200
Message-Id: <20180528100326.584373497@linuxfoundation.org>
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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 4c27bf3c5b7434ccb9ab962301da661c26b467a4 ]

r8152 driver handles TSO packets (limited to ~16KB) quite well,
but pretends each TSO logical packet is a single packet on the wire.

There is also some error since headers are accounted once, but
error rate is small enough that we do not care.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/r8152.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1793,7 +1793,7 @@ static int r8152_tx_agg_fill(struct r815
 
 		tx_data += len;
 		agg->skb_len += len;
-		agg->skb_num++;
+		agg->skb_num += skb_shinfo(skb)->gso_segs ?: 1;
 
 		dev_kfree_skb_any(skb);