Messages in this thread Patch in this message | | | From | Kevin Hilman <> | Subject | [PATCH] Generic IRQ: Add unlocked version of set_irq_handler() | Date | Tue, 11 Dec 2007 14:54:11 -0800 |
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Add unlocked version for use by irq_chip.set_type handlers which may wish to change handler to level or edge handler when IRQ type is changed.
The normal set_irq_handler() call cannot be used because it tries to take irq_desc.lock which is already held when the irq_chip.set_type hook is called.
Signed-off-by: Kevin Hilman <khilman@mvista.com> --- include/linux/irq.h | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/include/linux/irq.h b/include/linux/irq.h index efc8853..4669be0 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -339,6 +339,13 @@ extern void __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, const char *name); +/* caller has locked the irq_desc and both params are valid */ +static inline void __set_irq_handler_unlocked(int irq, + irq_flow_handler_t handler) +{ + irq_desc[irq].handle_irq = handler; +} + /* * Set a highlevel flow handler for a given IRQ: */ -- 1.5.3.7
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