Marc Zyngier 08d85f3ea9 irqdomain: Avoid activating interrupts more than once ... Since commit f3b0946d62 ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d62 ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2017-01-30 15:18:56 +01:00
..
acpi	More ACPI updates for v4.10-rc1	2016-12-22 10:19:32 -08:00
asm-generic	asm-prototypes: Clear any CPP defines before declaring the functions	2017-01-05 12:57:42 +01:00
clocksource
crypto	This pull contains one set of changes: a conversion of the crypto DocBook	2016-12-17 16:00:34 -08:00
drm	Merge tag 'drm-misc-fixes-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes	2017-01-27 10:16:56 +10:00
dt-bindings	dt-bindings: mfd: Remove TPS65217 interrupts	2016-12-27 10:06:00 -08:00
keys
kvm	KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems	2017-01-13 11:19:25 +00:00
linux	irqdomain: Avoid activating interrupts more than once	2017-01-30 15:18:56 +01:00
math-emu
media
memory
misc
net	tcp: don't annotate mark on control socket from tcp_v6_send_response()	2017-01-27 10:33:56 -05:00
pcmcia
ras
rdma	RDMA/core: Add the function ib_mtu_int_to_enum	2017-01-24 15:34:22 -05:00
rxrpc
scsi	Merge remote-tracking branch 'mkp-scsi/fixes' into fixes	2017-01-17 17:32:54 -05:00
soc	ARCv2: MCIP: update the BCR per current changes	2017-01-24 11:05:59 -08:00
sound	Merge remote-tracking branches 'asoc/fix/arizona', 'asoc/fix/dpcm', 'asoc/fix/dwc', 'asoc/fix/fsl-ssi' and 'asoc/fix/hdmi-codec' into asoc-linus	2017-01-10 10:47:50 +00:00
target	target: add XCOPY target/segment desc sense codes	2017-01-10 08:40:32 -08:00
trace	Merge branch 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-01-13 17:40:22 -08:00
uapi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-01-27 12:54:16 -08:00
video
xen	xen: features and fixes for 4.10 rc0	2016-12-13 16:07:55 -08:00
Kbuild