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-rw-r--r--kernel/irq/handle.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 8eda100..7fc7bc3 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -76,8 +76,13 @@ irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs)
return IRQ_NONE;
}
-/*
- * Have got an event to handle:
+/**
+ * handle_IRQ_event - irq action chain handler
+ * @irq: the interrupt number
+ * @regs: pointer to a register structure
+ * @action: the interrupt action chain for this irq
+ *
+ * Handles the action chain of an irq event
*/
irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
struct irqaction *action)
@@ -103,10 +108,17 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
return retval;
}
-/*
- * do_IRQ handles all normal device IRQ's (the special
+/**
+ * __do_IRQ - original all in one highlevel IRQ handler
+ * @irq: the interrupt number
+ * @regs: pointer to a register structure
+ *
+ * __do_IRQ handles all normal device IRQ's (the special
* SMP cross-CPU interrupts have their own specific
* handlers).
+ *
+ * This is the original x86 implementation which is used for every
+ * interrupt type.
*/
fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs)
{
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