*/
void disable_irq_nosync(unsigned int irq)
{
- struct irq_desc *desc;
+ struct irq_desc *desc = irq_to_desc(irq);
unsigned long flags;
- desc = irq_to_desc(irq);
if (!desc)
return;
*/
void disable_irq(unsigned int irq)
{
- struct irq_desc *desc;
+ struct irq_desc *desc = irq_to_desc(irq);
- desc = irq_to_desc(irq);
if (!desc)
return;
*/
void enable_irq(unsigned int irq)
{
- struct irq_desc *desc;
+ struct irq_desc *desc = irq_to_desc(irq);
unsigned long flags;
- desc = irq_to_desc(irq);
if (!desc)
return;
*/
int can_request_irq(unsigned int irq, unsigned long irqflags)
{
- struct irq_desc *desc;
+ struct irq_desc *desc = irq_to_desc(irq);
struct irqaction *action;
- desc = irq_to_desc(irq);
if (!desc)
return 0;
* Internal function to register an irqaction - typically used to
* allocate special interrupts that are part of the architecture.
*/
-int setup_irq(unsigned int irq, struct irqaction *new)
+static int
+__setup_irq(unsigned int irq, struct irq_desc * desc, struct irqaction *new)
{
- struct irq_desc *desc;
struct irqaction *old, **p;
const char *old_name = NULL;
unsigned long flags;
int shared = 0;
int ret;
- desc = irq_to_desc(irq);
if (!desc)
return -EINVAL;
return -EBUSY;
}
+/**
+ * setup_irq - setup an interrupt
+ * @irq: Interrupt line to setup
+ * @act: irqaction for the interrupt
+ *
+ * Used to statically setup interrupts in the early boot process.
+ */
+int setup_irq(unsigned int irq, struct irqaction *act)
+{
+ struct irq_desc *desc = irq_to_desc(irq);
+
+ return __setup_irq(irq, desc, act);
+}
+
/**
* free_irq - free an interrupt
* @irq: Interrupt line to free
*/
void free_irq(unsigned int irq, void *dev_id)
{
- struct irq_desc *desc;
+ struct irq_desc *desc = irq_to_desc(irq);
struct irqaction **p;
unsigned long flags;
WARN_ON(in_interrupt());
- desc = irq_to_desc(irq);
if (!desc)
return;
unsigned long irqflags, const char *devname, void *dev_id)
{
struct irqaction *action;
- int retval;
struct irq_desc *desc;
+ int retval;
#ifdef CONFIG_LOCKDEP
/*
action->next = NULL;
action->dev_id = dev_id;
- retval = setup_irq(irq, action);
+ retval = __setup_irq(irq, desc, action);
if (retval)
kfree(action);