genirq: Move status flag checks to core (fdd02963) · Commits · 戴 / test

include/linux/irqdesc.h

+5 −12

Original line number	Diff line number	Diff line
		@@ -223,28 +223,21 @@ irq_set_chip_handler_name_locked(struct irq_data data, struct irq_chip chip,
		data->chip = chip;
		}

		bool irq_check_status_bit(unsigned int irq, unsigned int bitmask);

		static inline bool irq_balancing_disabled(unsigned int irq)
		{
		struct irq_desc *desc;

		desc = irq_to_desc(irq);
		return desc->status_use_accessors & IRQ_NO_BALANCING_MASK;
		return irq_check_status_bit(irq, IRQ_NO_BALANCING_MASK);
		}

		static inline bool irq_is_percpu(unsigned int irq)
		{
		struct irq_desc *desc;

		desc = irq_to_desc(irq);
		return desc->status_use_accessors & IRQ_PER_CPU;
		return irq_check_status_bit(irq, IRQ_PER_CPU);
		}

		static inline bool irq_is_percpu_devid(unsigned int irq)
		{
		struct irq_desc *desc;

		desc = irq_to_desc(irq);
		return desc->status_use_accessors & IRQ_PER_CPU_DEVID;
		return irq_check_status_bit(irq, IRQ_PER_CPU_DEVID);
		}

		static inline void

+20 −0

Original line number	Diff line number	Diff line
		@@ -2839,3 +2839,23 @@ bool irq_has_action(unsigned int irq)
		return res;
		}
		EXPORT_SYMBOL_GPL(irq_has_action);

		/**
		* irq_check_status_bit - Check whether bits in the irq descriptor status are set
		* @irq: The linux irq number
		* @bitmask: The bitmask to evaluate
		*
		* Returns: True if one of the bits in @bitmask is set
		*/
		bool irq_check_status_bit(unsigned int irq, unsigned int bitmask)
		{
		struct irq_desc *desc;
		bool res = false;

		rcu_read_lock();
		desc = irq_to_desc(irq);
		if (desc)
		res = !!(desc->status_use_accessors & bitmask);
		rcu_read_unlock();
		return res;
		}