|  | #ifdef __KERNEL__ | 
|  | #ifndef __ASM_HARDIRQ_H | 
|  | #define __ASM_HARDIRQ_H | 
|  |  | 
|  | #include <linux/threads.h> | 
|  | #include <linux/irq.h> | 
|  |  | 
|  | typedef struct { | 
|  | unsigned int __softirq_pending; | 
|  | } ____cacheline_aligned irq_cpustat_t; | 
|  |  | 
|  | #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */ | 
|  |  | 
|  | #if NR_IRQS > 256 | 
|  | #define HARDIRQ_BITS	9 | 
|  | #else | 
|  | #define HARDIRQ_BITS	8 | 
|  | #endif | 
|  |  | 
|  | /* | 
|  | * The hardirq mask has to be large enough to have | 
|  | * space for potentially all IRQ sources in the system | 
|  | * nesting on a single CPU: | 
|  | */ | 
|  | #if (1 << HARDIRQ_BITS) < NR_IRQS | 
|  | # error HARDIRQ_BITS is too low! | 
|  | #endif | 
|  |  | 
|  | static inline void ack_bad_irq(int irq) | 
|  | { | 
|  | printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq); | 
|  | BUG(); | 
|  | } | 
|  |  | 
|  | #endif /* __ASM_HARDIRQ_H */ | 
|  | #endif /* __KERNEL__ */ |