genirq: Add state field to irq_data
Some chip implementations need to access certain status flags. With
sparse irqs that requires a lookup of the irq descriptor. Add a state
field which contains such flags.
Name it in a way which will make coders happy to access it with the
proper accessor functions. And it's easy to grep for.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3ce45c2..62bb08e 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -102,6 +102,8 @@
* struct irq_data - per irq and irq chip data passed down to chip functions
* @irq: interrupt number
* @node: node index useful for balancing
+ * @state_use_accessor: status information for irq chip functions.
+ * Use accessor functions to deal with it
* @chip: low level interrupt hardware access
* @handler_data: per-IRQ data for the irq_chip methods
* @chip_data: platform-specific per-chip private data for the chip
@@ -116,6 +118,7 @@
struct irq_data {
unsigned int irq;
unsigned int node;
+ unsigned int state_use_accessors;
struct irq_chip *chip;
void *handler_data;
void *chip_data;