r8169: fix memory corruption on retrieval of hardware statistics.

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[ Upstream commit a78e93661c ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Francois Romieu 2018-01-26 01:53:26 +01:00 • committed by Greg Kroah-Hartman

parent d32e574000

commit 72d4f3abd6

1 changed files with 2 additions and 7 deletions

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drivers/net/ethernet/realtek/r8169.c

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