Andrew Lunn 9a6f2b0113 net: mdio: Fix lockdep falls positive splat ...

MDIO devices can be stacked upon each other. The current code supports
two levels, which until recently has been enough for a DSA mdio bus on
top of another bus. Now we have hardware which has an MDIO mux in the
middle.

Define an MDIO MUTEX class with three levels.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

2016-04-11 21:15:48 -04:00

8.1 KiB

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