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fce5423e4f
linux/drivers/pci
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Marc Zyngier fce5423e4f PCI: dwc: Take lock when ACKing an interrupt 
Bizarrely, there is no lock taken in the irq_ack() helper. This
puts the ACK callback provided by a specific platform in a awkward
situation where there is no synchronization that would be expected
on other callback.

Introduce the required lock, giving some level of uniformity among
callbacks.

Fixes: 7c5925afbc ("PCI: dwc: Move MSI IRQs allocation to IRQ domains
hierarchical API")
Link: https://lore.kernel.org/linux-pci/20181113225734.8026-1-marc.zyngier@arm.com/
Tested-by: Niklas Cassel <niklas.cassel@linaro.org>
Tested-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Tested-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
2018-12-11 10:37:40 +00:00
..
controller PCI: dwc: Take lock when ACKing an interrupt 2018-12-11 10:37:40 +00:00
endpoint Merge branch 'remotes/lorenzo/pci/dwc' 2018-08-15 14:59:11 -05:00
hotplug Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
pcie Merge branch 'pci/misc' 2018-10-20 11:45:30 -05:00
switch switchtec: Fix Spectre v1 vulnerability 2018-09-11 08:47:40 -05:00
access.c PCI: Uninline PCI bus accessors for better ftracing 2018-10-04 16:37:37 -05:00
ats.c PCI: Enable PASID only if entire path supports End-End TLP prefixes 2018-06-30 14:10:03 -05:00
bus.c PCI: Fix is_added/is_busmaster race condition 2018-07-31 11:27:54 -05:00
ecam.c PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate 2018-01-28 15:48:29 -06:00
host-bridge.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
iov.c PCI/IOV: Remove unnecessary include of <linux/pci-ats.h> 2018-10-11 14:35:12 -05:00
irq.c PCI: Use IRQF_ONESHOT if pci_request_irq() called with no handler 2018-07-31 10:43:43 -05:00
Kconfig Merge branch 'remotes/lorenzo/pci/controller-misc' 2018-10-20 11:45:47 -05:00
Makefile Merge branch 'remotes/lorenzo/pci/controller-misc' 2018-10-20 11:45:47 -05:00
mmap.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
msi.c PCI/MSI: Warn and return error if driver enables MSI/MSI-X twice 2018-09-25 15:17:39 -05:00
of.c iommu/of: make of_pci_map_rid() available for other devices too 2018-09-25 09:47:52 +02:00
p2pdma.c PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers 2018-10-17 12:18:17 -05:00
pci-acpi.c Merge branch 'pci/misc' 2018-10-20 11:45:30 -05:00
pci-bridge-emul.c PCI: Introduce PCI bridge emulated config space common logic 2018-10-18 17:50:19 +01:00
pci-bridge-emul.h PCI: Introduce PCI bridge emulated config space common logic 2018-10-18 17:50:19 +01:00
pci-driver.c Merge branch 'pci/misc' 2018-08-15 14:58:54 -05:00
pci-label.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
pci-mid.c x86/cpu: Sanitize FAM6_ATOM naming 2018-10-02 10:14:32 +02:00
pci-pf-stub.c PCI/IOV: Add pci-pf-stub driver for PFs that only enable VFs 2018-04-24 16:47:16 -05:00
pci-stub.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
pci-sysfs.c Merge branch 'pci/hotplug' 2018-08-15 14:58:52 -05:00
pci.c pci-v4.20-changes 2018-10-25 06:50:48 -07:00
pci.h Merge branch 'pci/virtualization' 2018-10-20 11:45:35 -05:00
probe.c Merge branch 'pci/virtualization' 2018-10-20 11:45:35 -05:00
proc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
quirks.c PCI: Fix Switchtec DMA aliasing quirk dmesg noise 2018-10-11 11:28:53 -05:00
remove.c PCI/ASPM: Fix link_state teardown on device removal 2018-09-17 16:32:23 -05:00
rom.c PCI: Make pci_get_rom_size() static 2018-06-29 21:17:26 -05:00
search.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
setup-bus.c PCI: Equalize hotplug memory and io for occupied and empty slots 2018-10-02 16:04:40 -05:00
setup-irq.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
setup-res.c PCI: Remove messages about reassigning resources 2018-04-11 08:46:50 -05:00
slot.c PCI/ERR: Use slot reset if available 2018-09-21 12:18:10 -05:00
syscall.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
vc.c Merge branch 'pci/spdx' into next 2018-02-01 11:40:07 -06:00
vpd.c PCI/VPD: Check for VPD access completion before checking for timeout 2018-08-14 16:04:46 -05:00
xen-pcifront.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00