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			If somebody causes an unexpected bad IRQ, this even will be unnoticed in both dmesg and system logs. If the "bad" IRQ is stuck, the device will just hang silently w/o reporting anything. Compare this to the generic behaviour (from include/asm-generic/hardirq.h) which prints a message with critical level. So to help everybody, include the same message into ARM-specific ack_bad_irq(). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
		
			
				
	
	
		
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			C
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
	
		
			457 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Nothing to see here yet
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|  */
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| #ifndef _ARCH_ARM_HW_IRQ_H
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| #define _ARCH_ARM_HW_IRQ_H
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| 
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| static inline void ack_bad_irq(int irq)
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| {
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| 	extern unsigned long irq_err_count;
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| 	irq_err_count++;
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| 	pr_crit("unexpected IRQ trap at vector %02x\n", irq);
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| }
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| 
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| void set_irq_flags(unsigned int irq, unsigned int flags);
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| 
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| #define IRQF_VALID	(1 << 0)
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| #define IRQF_PROBE	(1 << 1)
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| #define IRQF_NOAUTOEN	(1 << 2)
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| 
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| #define ARCH_IRQ_INIT_FLAGS	(IRQ_NOREQUEST | IRQ_NOPROBE)
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| 
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| #endif
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