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genirq: Provide locked setter for chip, handler, name 

Some irq_set_type() callbacks need to change the chip and the handler
when the trigger mode changes. We have already a (misnomed) setter
function for the handler which can be called from irq_set_type().

Provide one which allows to set chip and name as well. Put the
misnomed function under the COMPAT switch and provide a replacement.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-03-23 13:10:31 +01:00
parent d3e17deb17
commit a2e8461a2c
1 changed files with 29 additions and 10 deletions
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39
include/linux/irqdesc.h
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@ -171,7 +171,36 @@ static inline int irq_has_action(unsigned int irq)
return desc->action != NULL; return desc->action != NULL;
} }
/* caller has locked the irq_desc and both params are valid */
static inline void __irq_set_handler_locked(unsigned int irq,
irq_flow_handler_t handler)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
desc->handle_irq = handler;
}
/* caller has locked the irq_desc and both params are valid */
static inline void
__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
irq_flow_handler_t handler, const char *name)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
irq_desc_get_irq_data(desc)->chip = chip;
desc->handle_irq = handler;
desc->name = name;
}
#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT #ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
static inline void __set_irq_handler_unlocked(int irq,
irq_flow_handler_t handler)
{
__irq_set_handler_locked(irq, handler);
}
static inline int irq_balancing_disabled(unsigned int irq) static inline int irq_balancing_disabled(unsigned int irq)
{ {
struct irq_desc *desc; struct irq_desc *desc;
@ -181,16 +210,6 @@ static inline int irq_balancing_disabled(unsigned int irq)
} }
#endif #endif
/* 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)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
desc->handle_irq = handler;
}
static inline void static inline void
irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class)
{ {