desc->chip = &no_irq_chip;
desc->handle_irq = handle_bad_irq;
desc->depth = 1;
+ desc->msi_desc = NULL;
desc->handler_data = NULL;
desc->chip_data = NULL;
desc->action = NULL;
WARN_ON(1);
return;
}
+ desc->msi_desc = NULL;
+ desc->handler_data = NULL;
+ desc->chip_data = NULL;
desc->handle_irq = handle_bad_irq;
desc->chip = &no_irq_chip;
spin_unlock_irqrestore(&desc->lock, flags);
}
EXPORT_SYMBOL(set_irq_data);
+/**
+ * set_irq_data - set irq type data for an irq
+ * @irq: Interrupt number
+ * @data: Pointer to interrupt specific data
+ *
+ * Set the hardware irq controller data for an irq
+ */
+int set_irq_msi(unsigned int irq, struct msi_desc *entry)
+{
+ struct irq_desc *desc;
+ unsigned long flags;
+
+ if (irq >= NR_IRQS) {
+ printk(KERN_ERR
+ "Trying to install msi data for IRQ%d\n", irq);
+ return -EINVAL;
+ }
+ desc = irq_desc + irq;
+ spin_lock_irqsave(&desc->lock, flags);
+ desc->msi_desc = entry;
+ spin_unlock_irqrestore(&desc->lock, flags);
+ return 0;
+}
+
/**
* set_irq_chip_data - set irq chip data for an irq
* @irq: Interrupt number
chip->shutdown = chip->disable;
if (!chip->name)
chip->name = chip->typename;
+ if (!chip->end)
+ chip->end = dummy_irq_chip.end;
}
static inline void mask_ack_irq(struct irq_desc *desc, int irq)
if (!handle)
handle = handle_bad_irq;
-
- if (desc->chip == &no_irq_chip) {
+ else if (desc->chip == &no_irq_chip) {
printk(KERN_WARNING "Trying to install %sinterrupt handler "
- "for IRQ%d\n", is_chained ? "chained " : " ", irq);
+ "for IRQ%d\n", is_chained ? "chained " : "", irq);
/*
* Some ARM implementations install a handler for really dumb
* interrupt hardware without setting an irq_chip. This worked