Thomas Gleixner 52abb700e1 genirq: Clear action->thread_mask if IRQ_ONESHOT is not set ...

Xommit ac5637611(genirq: Unmask oneshot irqs when thread was not woken)
fails to unmask when a !IRQ_ONESHOT threaded handler is handled by
handle_level_irq.

This happens because thread_mask is or'ed unconditionally in
irq_wake_thread(), but for !IRQ_ONESHOT interrupts never cleared.  So
the check for !desc->thread_active fails and keeps the interrupt
disabled.

Keep the thread_mask zero for !IRQ_ONESHOT interrupts.

Document the thread_mask magic while at it.

Reported-and-tested-by: Sven Joachim <[email protected]>
Reported-and-tested-by: Stefan Lippers-Hollmann <[email protected]>
Cc: [email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2012-03-06 16:46:39 -08:00

..

autoprobe.c

genirq: Handle pending irqs in irq_startup()

2012-02-15 11:56:59 +01:00

chip.c

genirq: Handle pending irqs in irq_startup()

2012-02-15 11:56:59 +01:00

debug.h

genirq: Support per-IRQ thread disabling.

2011-04-23 15:56:24 +02:00

devres.c

devres: fix possible use after free

2011-07-25 20:57:14 -07:00

dummychip.c

genirq: Remove compat code

2011-03-29 14:48:19 +02:00

generic-chip.c

kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure

2011-10-31 19:30:05 -04:00

handle.c

irq: Handle spurios irq detection for threaded irqs

2011-06-03 14:53:15 +02:00

internals.h

genirq: Handle pending irqs in irq_startup()

2012-02-15 11:56:59 +01:00

irqdesc.c

irq: don't put module.h into irq.h for tracking irqgen modules.

2011-10-31 19:32:35 -04:00

irqdomain.c

Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

2012-01-07 12:18:52 -08:00

Kconfig

irq: add irq_domain translation infrastructure

2011-07-28 01:32:04 -06:00

Makefile

irq: add irq_domain translation infrastructure

2011-07-28 01:32:04 -06:00

manage.c

genirq: Clear action->thread_mask if IRQ_ONESHOT is not set

2012-03-06 16:46:39 -08:00

migration.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

pm.c

genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier

2011-10-17 11:42:49 +02:00

proc.c

irq: Remove smp_affinity_list when unregister irq proc

2011-05-26 13:15:28 +02:00

resend.c

genirq: Remove compat code

2011-03-29 14:48:19 +02:00

settings.h

genirq: Add support for per-cpu dev_id interrupts

2011-10-03 15:35:26 +02:00

spurious.c

module_param: make bool parameters really bool (core code)

2012-01-13 09:32:18 +10:30