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3f7bb2ec20
mirror_ubuntu-kernels/drivers/pci/controller/dwc
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Marc Zyngier 3f7bb2ec20 PCI: dwc: Move interrupt acking into the proper callback 
The write to the status register is really an ACK for the HW,
and should be treated as such by the driver. Let's move it to the
irq_ack() callback, which will prevent people from moving it around
in order to paper over other bugs.

Fixes: 8c934095fa ("PCI: dwc: Clear MSI interrupt status after it is handled,
not before")
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/
Reported-by: Trent Piepho <tpiepho@impinj.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 10:37:58 +00:00
..
Kconfig
Makefile PCI: keystone: Merge pci-keystone-dw.c and pci-keystone.c 2018-10-17 09:43:44 +01:00
pci-dra7xx.c PCI: dwc: pci-dra7xx: Enable errata i870 for both EP and RC mode 2018-09-25 10:53:10 +01:00
pci-exynos.c PCI: exynos: Drop unnecessary root_bus_nr setting 2018-07-13 14:07:47 +01:00
pci-imx6.c PCI: imx: Add PME_Turn_Off support 2018-10-05 12:00:35 +01:00
pci-keystone.c PCI: keystone: Cleanup macros defined in pci-keystone.c 2018-10-17 09:59:02 +01:00
pci-layerscape.c
pcie-armada8k.c PCI: armada8k: Drop unnecessary root_bus_nr setting 2018-07-13 14:08:28 +01:00
pcie-artpec6.c PCI: Update xxx_pcie_ep_raise_irq() and pci_epc_raise_irq() signatures 2018-07-19 11:34:42 +01:00
pcie-designware-ep.c PCI: dwc: Add legacy interrupt callback handler 2018-07-19 11:38:38 +01:00
pcie-designware-host.c PCI: dwc: Move interrupt acking into the proper callback 2018-12-11 10:37:58 +00:00
pcie-designware-plat.c pci-epf-test/pci_endpoint_test: Add MSI-X support 2018-07-19 11:46:45 +01:00
pcie-designware.c PCI: dwc: Fix scheduling while atomic issues 2018-09-20 16:36:20 -05:00
pcie-designware.h pci-v4.20-changes 2018-10-25 06:50:48 -07:00
pcie-hisi.c
pcie-histb.c PCI: histb: Drop unnecessary root_bus_nr setting 2018-07-13 14:09:47 +01:00
pcie-kirin.c PCI: kirin: Fix section mismatch warning 2018-10-01 17:16:23 +01:00
pcie-qcom.c PCI: qcom: Fix error handling in runtime PM support 2018-09-18 10:13:14 +01:00
pcie-spear13xx.c PCI: spear13xx: Drop unnecessary root_bus_nr setting 2018-07-13 14:10:55 +01:00