linux/arch/x86/kernel/apic
Thomas Gleixner aaaec6fc75 x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.

Fix it by deactivating the interrupt before activating the new configuration.

Fixes: 08d85f3ea9 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
2017-01-31 20:22:18 +01:00
..
apic_flat_64.c Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 17:18:52 -07:00
apic_noop.c x86: Apply more __ro_after_init and const 2016-08-10 14:55:05 +02:00
apic_numachip.c x86: Clean up various simple wrapper functions 2016-09-13 20:42:58 +02:00
apic.c x86/smpboot: Make logical package management more robust 2016-12-13 10:22:39 +01:00
bigsmp_32.c x86: Apply more __ro_after_init and const 2016-08-10 14:55:05 +02:00
htirq.c x86: Constify irqdomain ops 2015-05-05 11:14:48 +02:00
hw_nmi.c nmi_backtrace: add more trigger_*_cpu_backtrace() methods 2016-10-07 18:46:30 -07:00
io_apic.c x86/irq: Make irq activate operations symmetric 2017-01-31 20:22:18 +01:00
ipi.c x86/kernel: Audit and remove any unnecessary uses of module.h 2016-07-14 15:06:41 +02:00
Makefile kernel: add kcov code coverage 2016-03-22 15:36:02 -07:00
msi.c x86: Apply more __ro_after_init and const 2016-08-10 14:55:05 +02:00
probe_32.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 16:13:28 -07:00
probe_64.c x86/apic: Remove duplicated include from probe_64.c 2016-07-19 16:02:31 +02:00
vector.c x86/irq: Prevent force migration of irqs which are not in the vector domain 2016-10-04 13:13:47 +02:00
x2apic_cluster.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
x2apic_phys.c x86: Apply more __ro_after_init and const 2016-08-10 14:55:05 +02:00
x2apic_uv_x.c x86/apic/uv: Silence a shift wrapping warning 2016-11-24 06:01:05 +01:00