genirq: Add flags to irq_chip

Looking through irq_chip implementations I noticed that some of them
have special requirements, like setting the type masked and therefor
fiddle in irq_desc->status. Add a flag field, so the core code can
handle it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-10 13:08:38 +01:00
commit 2bff17ad21