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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>
23 lines
457 B
C
23 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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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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void set_irq_flags(unsigned int irq, unsigned int flags);
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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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#define ARCH_IRQ_INIT_FLAGS (IRQ_NOREQUEST | IRQ_NOPROBE)
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#endif
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