tree 01fd49eb19015b753a0714ed690444c3c1a42eee
parent f15ca723c1ebe6c1a06bc95fda6b62cd87b44559
author Francois Romieu <romieu@fr.zoreil.com> 1516928006 +0100
committer David S. Miller <davem@davemloft.net> 1516934044 -0500

r8169: fix memory corruption on retrieval of hardware statistics.

Hardware statistics retrieval hurts in tight invocation loops.

Avoid extraneous write and enforce strict ordering of writes targeted to
the tally counters dump area address registers.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>