net: dsa: mv88e6xxx: Fix u64 statistics
commit23e34d11b000be877d4cd3df00f03894791542d4
authorAndrew Lunn <andrew@lunn.ch>
Thu, 28 Feb 2019 17:14:03 +0000 (28 18:14 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Mar 2019 21:04:53 +0000 (13 14:04 -0700)
treecaa3762aa011c0b20ecc00037a4dbcdaf757e57c
parentfc693a59689f1d790841ece7db9de8d6659a58a3
net: dsa: mv88e6xxx: Fix u64 statistics

[ Upstream commit 6e46e2d821bb22b285ae8187959096b65d063b0d ]

The switch maintains u64 counters for the number of octets sent and
received. These are kept as two u32's which need to be combined.  Fix
the combing, which wrongly worked on u16's.

Fixes: 80c4627b2719 ("dsa: mv88x6xxx: Refactor getting a single statistic")
Reported-by: Chris Healy <Chris.Healy@zii.aero>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/dsa/mv88e6xxx/chip.c