netdev - [PATCH net-next 21/22] net: aquantia: Fix internal stats calculation on rx

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Message-Id: <e7dc7fa17e5db7e9c153160c86a18db99ac0e650.1515682839.git.igor.russkikh@aquantia.com>
Date:   Fri, 12 Jan 2018 13:37:12 +0300
From:   Igor Russkikh <igor.russkikh@...antia.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, David Arcari <darcari@...hat.com>,
        Pavel Belous <pavel.belous@...antia.com>,
        Igor Russkikh <igor.russkikh@...antia.com>
Subject: [PATCH net-next 21/22] net: aquantia: Fix internal stats calculation on rx

skb len should be fetched before gro_receive - otherwise we may get
wrong or even outdated skb data.

Signed-off-by: Igor Russkikh <igor.russkikh@...antia.com>
---
 drivers/net/ethernet/aquantia/atlantic/aq_ring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 519ca65..0be6a11 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -279,10 +279,10 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 
 		skb_record_rx_queue(skb, self->idx);
 
-		napi_gro_receive(napi, skb);
-
 		++self->stats.rx.packets;
 		self->stats.rx.bytes += skb->len;
+
+		napi_gro_receive(napi, skb);
 	}
 
 err_exit:
-- 
2.7.4