linux_dsm_epyc7002/kernel/irq
Marc Zyngier e8f241893d genirq: Restore trigger settings in irq_modify_status()
irq_modify_status starts by clearing the trigger settings from
irq_data before applying the new settings, but doesn't restore them,
leaving them to IRQ_TYPE_NONE.

That's pretty confusing to the potential request_irq() that could
follow. Instead, snapshot the settings before clearing them, and restore
them if the irq_modify_status() invocation was not changing the trigger.

Fixes: 1e2a7d7849 ("irqdomain: Don't set type when mapping an IRQ")
Reported-and-tested-by: jeffy <jeffy.chen@rock-chips.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jon Hunter <jonathanh@nvidia.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20170818095345.12378-1-marc.zyngier@arm.com
2017-08-18 12:04:14 +02:00
..
affinity.c pci-v4.13-changes 2017-07-08 15:51:57 -07:00
autoprobe.c genirq: Add force argument to irq_startup() 2017-06-22 18:21:24 +02:00
chip.c genirq: Restore trigger settings in irq_modify_status() 2017-08-18 12:04:14 +02:00
cpuhotplug.c genirq/cpuhotplug: Revert "Set force affinity flag on hotplug migration" 2017-07-27 15:40:02 +02:00
debug.h irq: hide debug macros so they don't collide with others. 2012-04-23 12:30:03 -04:00
debugfs.c genirq/debugfs: Remove pointless NULL pointer check 2017-06-24 11:43:53 +02:00
devres.c irq/generic-chip: Provide devm_irq_setup_generic_chip() 2017-06-21 15:53:11 +02:00
dummychip.c Merge branch 'linus' into irq/core 2015-06-05 22:25:01 +02:00
generic-chip.c irq/generic-chip: Export irq_init_generic_chip() locally 2017-06-21 15:53:11 +02:00
handle.c There has been a fair amount of activity in the docs tree this time 2017-07-03 21:13:25 -07:00
internals.h genirq/PM: Properly pretend disabled state when force resuming interrupts 2017-07-17 22:32:20 +02:00
ipi.c genirq: Fix missing irq allocation affinity hint 2016-07-19 10:49:47 +02:00
irqdesc.c Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-09 10:24:46 -07:00
irqdomain.c irqdomain: Allow ACPI device nodes to be used as irqdomain identifiers 2017-07-07 12:13:29 +02:00
Kconfig genirq/timings: Add infrastructure to track the interrupt timings 2017-06-24 11:44:11 +02:00
Makefile genirq/timings: Add infrastructure to track the interrupt timings 2017-06-24 11:44:11 +02:00
manage.c genirq: Keep chip buslock across irq_request/release_resources() 2017-07-12 10:14:42 +02:00
migration.c genirq: Provide irq_fixup_move_pending() 2017-06-22 18:21:13 +02:00
msi.c genirq/irqdomain: Remove auto-recursive hierarchy support 2017-06-22 18:29:34 +02:00
pm.c genirq/PM: Properly pretend disabled state when force resuming interrupts 2017-07-17 22:32:20 +02:00
proc.c genirq: Introduce effective affinity mask 2017-06-22 18:21:20 +02:00
resend.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
settings.h genirq: Add flag to force mask in disable_irq[_nosync]() 2015-10-11 11:33:42 +02:00
spurious.c genirq: Clarify logic calculating bogus irqreturn_t values 2017-02-16 15:32:19 +01:00
timings.c genirq/timings: Add infrastructure for estimating the next interrupt arrival time 2017-06-24 11:44:39 +02:00