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linux/kernel/irq
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Thomas Gleixner 75a06189fc genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD 
The resend mechanism happily calls the interrupt handler of interrupts
which are marked IRQ_NESTED_THREAD from softirq context. This can
result in crashes because the interrupt handler is not the proper way
to invoke the device handlers. They must be invoked via
handle_nested_irq.

Prevent the resend even if the interrupt has no valid parent irq
set. Its better to have a lost interrupt than a crashing machine.

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
2015-07-17 11:29:34 +02:00
..
autoprobe.c genirq: Handle pending irqs in irq_startup() 2012-02-15 11:56:59 +01:00
chip.c irq: Add irq_set_chained_handler_and_data() 2015-06-18 14:03:08 +02:00
debug.h irq: hide debug macros so they don't collide with others. 2012-04-23 12:30:03 -04:00
devres.c genirq: devres: Fix testing return value of request_any_context_irq() 2015-05-13 10:47:37 +02:00
dummychip.c Merge branch 'linus' into irq/core 2015-06-05 22:25:01 +02:00
generic-chip.c genirq: generic chip: Support hierarchy domain 2015-05-18 17:32:44 +02:00
handle.c genirq: Export symbol no_action() 2014-03-22 11:33:09 +01:00
internals.h hotplug: Prevent alloc/free of irq descriptors during cpu up/down 2015-07-08 11:32:25 +02:00
irqdesc.c Merge branch 'irq/for-x86' into irq/core 2015-06-20 19:14:31 +02:00
irqdomain.c Merge branch 'irq/for-x86' into irq/core 2015-06-20 19:14:31 +02:00
Kconfig genirq: Add generic msi irq domain support 2014-11-23 13:01:47 +01:00
Makefile genirq: Add generic msi irq domain support 2014-11-23 13:01:47 +01:00
manage.c genirq: Introduce helper function irq_data_get_node() 2015-06-12 16:54:21 +02:00
migration.c genirq: Remove bogus restriction in irq_move_mask_irq() 2015-06-20 19:05:14 +02:00
msi.c genirq: MSI: Constify irq_domain_ops 2015-05-05 10:45:58 +02:00
pm.c genirq: Don't suspend nested_thread irqs over system suspend 2015-05-18 17:23:47 +02:00
proc.c genirq: Introduce helper function irq_data_get_node() 2015-06-12 16:54:21 +02:00
resend.c genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD 2015-07-17 11:29:34 +02:00
settings.h genirq: Prevent spurious detection for unconditionally polled interrupts 2013-11-13 16:03:02 +01:00
spurious.c genirq: Sanitize spurious interrupt detection of threaded irqs 2014-05-03 23:15:39 +02:00