https://github.com/torvalds/linux
Revision a9049ff9214da68df1179a7d5e36b43479abc9b8 authored by Andrew Lunn on 10 November 2018, 23:41:10 UTC, committed by David S. Miller on 11 November 2018, 18:19:10 UTC
The mv88e6161 would sometime fail to probe with a timeout waiting for
the switch to complete an operation. This operation is supposed to
clear the statistics counters. However, due to a read/modify/write,
without the needed mask, the operation actually carried out was more
random, with invalid parameters, resulting in the switch not
responding. We need to preserve the histogram mode bits, so apply a
mask to keep them.

Reported-by: Chris Healy <Chris.Healy@zii.aero>
Fixes: 40cff8fca9e3 ("net: dsa: mv88e6xxx: Fix stats histogram mode")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 7ab412d
History
Tip revision: a9049ff9214da68df1179a7d5e36b43479abc9b8 authored by Andrew Lunn on 10 November 2018, 23:41:10 UTC
net: dsa: mv88e6xxx: Fix clearing of stats counters
Tip revision: a9049ff
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