genirq: Fix new kernel-doc warnings

Fix new irq-related kernel-doc warnings in 2.6.38:

Warning(kernel/irq/manage.c:149): No description found for parameter 'mask'
Warning(kernel/irq/manage.c:149): Excess function parameter 'cpumask' description in 'irq_set_affinity'
Warning(include/linux/irq.h:161): No description found for parameter 'state_use_accessors'
Warning(include/linux/irq.h:161): Excess struct/union/enum/typedef member 'state_use_accessor' description in 'irq_data'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
LKML-Reference: <20110318093356.b939558d.randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

include/linux/irq.h

@@ -135,7 +135,7 @@ struct msi_desc;
  * 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.
+ * @state_use_accessors: 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

kernel/irq/manage.c

@@ -175,7 +175,7 @@ int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask)
 /**
  *	irq_set_affinity - Set the irq affinity of a given irq
  *	@irq:		Interrupt to set affinity
- *	@cpumask:	cpumask
+ *	@mask:		cpumask
  *
  */
 int irq_set_affinity(unsigned int irq, const struct cpumask *mask)