irqreturn.h

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#ifndef _LINUX_IRQRETURN_H
#define _LINUX_IRQRETURN_H

enum irqreturn {
    IRQ_NONE        = (0 << 0),
    IRQ_HANDLED     = (1 << 0),
    IRQ_WAKE_THREAD     = (1 << 1),
};

typedef enum irqreturn irqreturn_t;
#define IRQ_RETVAL(x)   ((x) != IRQ_NONE)

#endif