kernel/irq: Extend lockdep class for request mutex
The IRQ code already has support for lockdep class for the lock mutex in an interrupt descriptor. Extend this to add a second class for the request mutex in the descriptor. Not having a class is resulting in false positive splats in some code paths. Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: linus.walleij@linaro.org Cc: grygorii.strashko@ti.com Cc: f.fainelli@gmail.com Link: https://lkml.kernel.org/r/1512234664-21555-1-git-send-email-andrew@lunn.ch
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