文件操作 - irqnr.h
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文件: /usr/src/linux-headers-5.15.0-186/include/linux/irqnr.h
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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_IRQNR_H #define _LINUX_IRQNR_H #include <uapi/linux/irqnr.h> extern int nr_irqs; extern struct irq_desc *irq_to_desc(unsigned int irq); unsigned int irq_get_next_irq(unsigned int offset); # define for_each_irq_desc(irq, desc) \ for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \ irq++, desc = irq_to_desc(irq)) \ if (!desc) \ ; \ else # define for_each_irq_desc_reverse(irq, desc) \ for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \ irq--, desc = irq_to_desc(irq)) \ if (!desc) \ ; \ else # define for_each_active_irq(irq) \ for (irq = irq_get_next_irq(0); irq < nr_irqs; \ irq = irq_get_next_irq(irq + 1)) #define for_each_irq_nr(irq) \ for (irq = 0; irq < nr_irqs; irq++) #endif
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