On Sun, Dec 21, 2014 at 12:34:51AM +0200, Antti Palosaari wrote: > Lockdep validator complains recursive locking and deadlock when two > different regmap instances are called in a nested order, as regmap > groups locks by default. That happens easily for example when both I don't know what "regmap groups locks by default" means. > I2C client and I2C adapter are using regmap. As a solution, add > configuration option to pass custom lock class key for lockdep > validator. Why is this configurable, how would a device know if the system it is in needs a custom locking class and can safely use one?
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