genirq: Implement irq_set_handler_locked()/irq_set_chip_handler_name_locked()

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The main use case for the exisiting __irq_set_*_locked() inlines is to
replace the handler [,chip and name] of an interrupt from a region
which has the irq descriptor lock held, e.g. from the irq_set_type()
callback. The first argument is the irq number, so the functions need
so perform a pointless lookup of the interrupt descriptor for those
cases which have the irq_data pointer handy.

Provide new functions which take an irq_data pointer instead of the
interrupt number, so the lookup of the interrupt descriptor can be
avoided.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>

Conflicts:
	include/linux/irqdesc.h

...

This commit is contained in:

Thomas Gleixner 2015-06-23 15:01:30 +02:00

parent 304adf8a8f

commit bbc9d21fc0

1 changed files with 41 additions and 0 deletions

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include/linux/irqdesc.h

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