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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-22 12:14:01 +08:00
linux-next/kernel/irq
Thomas Gleixner 04c848d398 genirq: Warn when IRQ_NOAUTOEN is used with shared interrupts
Shared interrupts do not go well with disabling auto enable:

1) The sharing interrupt might request it while it's still disabled and
   then wait for interrupts forever.

2) The interrupt might have been requested by the driver sharing the line
   before IRQ_NOAUTOEN has been set. So the driver which expects that
   disabled state after calling request_irq() will not get what it wants.
   Even worse, when it calls enable_irq() later, it will trigger the
   unbalanced enable_irq() warning.

Reported-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dianders@chromium.org
Cc: jeffy <jeffy.chen@rock-chips.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: tfiga@chromium.org
Link: http://lkml.kernel.org/r/20170531100212.210682135@linutronix.de
2017-06-04 14:38:41 +02:00
..
affinity.c genirq/affinity: Fix calculating vectors to assign 2017-04-20 16:03:09 +02:00
autoprobe.c genirq: Handle pending irqs in irq_startup() 2012-02-15 11:56:59 +01:00
chip.c genirq: Warn when IRQ_NOAUTOEN is used with shared interrupts 2017-06-04 14:38:41 +02:00
cpuhotplug.c genirq: Make the cpuhotplug migration code less noisy 2015-10-22 14:34:57 +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: Use dev_name(dev) as default for devname 2017-02-12 19:49:25 +01:00
dummychip.c Merge branch 'linus' into irq/core 2015-06-05 22:25:01 +02:00
generic-chip.c genirq/generic_chip: Verify irqs_per_chip <= 32 2016-09-02 20:20:59 +02:00
handle.c genirq: Add untracked irq handler 2016-06-18 10:00:55 +02:00
internals.h Merge branch 'irq/for-block' into irq/core 2016-07-04 12:26:05 +02:00
ipi.c genirq: Fix missing irq allocation affinity hint 2016-07-19 10:49:47 +02:00
irqdesc.c genirq: Make early_irq_init() print out more informative 2017-05-26 14:54:05 +02:00
irqdomain.c irqdomain: Let irq_domain_mapping display ACPI fwnode attributes 2017-05-22 22:29:44 +02:00
Kconfig genirq: Add GENERIC_IRQ_IPI Kconfig symbol 2016-02-25 10:56:55 +01:00
Makefile genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors 2016-07-04 12:25:14 +02:00
manage.c genirq: Warn when IRQ_NOAUTOEN is used with shared interrupts 2017-06-04 14:38:41 +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: Populate the domain name if provided by the irqchip 2017-05-22 22:29:45 +02:00
pm.c Merge branches 'irq-urgent-for-linus' and 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-15 09:30:48 -08:00
proc.c genirq: Fix /proc/interrupts output alignment 2017-02-10 20:17:52 +01:00
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