irq: Export functions to allow modular irq drivers (edf76f83) · Commits · 戴 / test

Export handle_simple_irq, irq_modify_status, irq_alloc_descs, irq_free_descs and generic_handle_irq to allow their usage in modules. First user is IIO, which wants to be built modular, but needs to be able to create irq chips, allocate and configure interrupt descriptors and handle demultiplexing interrupts. [ tglx: Moved the uninlinig of generic_handle_irq to a separate patch ] Signed-off-by:

Jonathan Cameron <jic23@cam.ac.uk> Link: http://lkml.kernel.org/r/%3C1305711544-505-1-git-send-email-jic23%40cam.ac.uk%3E Signed-off-by:

Thomas Gleixner <tglx@linutronix.de>

kernel/irq/chip.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -310,6 +310,7 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
		out_unlock:
		raw_spin_unlock(&desc->lock);
		}
		EXPORT_SYMBOL_GPL(handle_simple_irq);

		/**
		* handle_level_irq - Level type irq handler
		@@ -613,6 +614,7 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)

		irq_put_desc_unlock(desc, flags);
		}
		EXPORT_SYMBOL_GPL(irq_modify_status);

		/**
		* irq_cpu_online - Invoke all irq_cpu_online functions.

kernel/irq/irqdesc.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -304,6 +304,7 @@ int generic_handle_irq(unsigned int irq)
		generic_handle_irq_desc(irq, desc);
		return 0;
		}
		EXPORT_SYMBOL_GPL(generic_handle_irq);

		/* Dynamic interrupt handling */

		@@ -326,6 +327,7 @@ void irq_free_descs(unsigned int from, unsigned int cnt)
		bitmap_clear(allocated_irqs, from, cnt);
		mutex_unlock(&sparse_irq_lock);
		}
		EXPORT_SYMBOL_GPL(irq_free_descs);

		/**
		* irq_alloc_descs - allocate and initialize a range of irq descriptors
		@@ -366,6 +368,7 @@ err:
		mutex_unlock(&sparse_irq_lock);
		return ret;
		}
		EXPORT_SYMBOL_GPL(irq_alloc_descs);

		/**
		* irq_reserve_irqs - mark irqs allocated

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