genirq: Streamline irq_action

There is no need to have flags as unsigned long. Make it unsigned int
and put it together with irq so it does not waste space on 64 bit.
Make irq unsigned int while at it.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

include/linux/interrupt.h

@@ -93,27 +93,27 @@ typedef irqreturn_t (*irq_handler_t)(int, void *);
 /**
  * struct irqaction - per interrupt action descriptor
  * @handler:	interrupt handler function
- * @flags:	flags (see IRQF_* above)
  * @name:	name of the device
  * @dev_id:	cookie to identify the device
  * @percpu_dev_id:	cookie to identify the device
  * @next:	pointer to the next irqaction for shared interrupts
  * @irq:	interrupt number
- * @dir:	pointer to the proc/irq/NN/name entry
+ * @flags:	flags (see IRQF_* above)
  * @thread_fn:	interrupt handler function for threaded interrupts
  * @thread:	thread pointer for threaded interrupts
  * @thread_flags:	flags related to @thread
  * @thread_mask:	bitmask for keeping track of @thread activity
+ * @dir:	pointer to the proc/irq/NN/name entry
  */
 struct irqaction {
 	irq_handler_t		handler;
-	unsigned long		flags;
 	void			*dev_id;
 	void __percpu		*percpu_dev_id;
 	struct irqaction	*next;
-	int			irq;
 	irq_handler_t		thread_fn;
 	struct task_struct	*thread;
+	unsigned int		irq;
+	unsigned int		flags;
 	unsigned long		thread_flags;
 	unsigned long		thread_mask;
 	const char		*name;