.end = noop,
};
+/*
+ * Generic dummy implementation which can be used for
+ * real dumb interrupt sources
+ */
+struct irq_chip dummy_irq_chip = {
+ .name = "dummy",
+ .startup = noop_ret,
+ .shutdown = noop,
+ .enable = noop,
+ .disable = noop,
+ .ack = noop,
+ .mask = noop,
+ .unmask = noop,
+ .end = noop,
+};
+
/*
* Special, empty irq handler:
*/
irqreturn_t ret, retval = IRQ_NONE;
unsigned int status = 0;
- if (!(action->flags & SA_INTERRUPT))
- local_irq_enable();
+ handle_dynamic_tick(action);
+
+ if (!(action->flags & IRQF_DISABLED))
+ local_irq_enable_in_hardirq();
do {
ret = action->handler(irq, action->dev_id, regs);
action = action->next;
} while (action);
- if (status & SA_SAMPLE_RANDOM)
+ if (status & IRQF_SAMPLE_RANDOM)
add_interrupt_randomness(irq);
local_irq_disable();
return 1;
}
+#ifdef CONFIG_TRACE_IRQFLAGS
+
+/*
+ * lockdep: we want to handle all irq_desc locks as a single lock-class:
+ */
+static struct lock_class_key irq_desc_lock_class;
+
+void early_init_irq_lock_class(void)
+{
+ int i;
+
+ for (i = 0; i < NR_IRQS; i++)
+ lockdep_set_class(&irq_desc[i].lock, &irq_desc_lock_class);
+}
+
+#endif