linux/drivers/pci
Sergey Miroshnichenko 3943af9d01 PCI: pciehp: Ignore Link State Changes after powering off a slot
During a safe hot remove, the OS powers off the slot, which may cause a
Data Link Layer State Changed event.  The slot has already been set to
OFF_STATE, so that event results in re-enabling the device, making it
impossible to safely remove it.

Clear out the Presence Detect Changed and Data Link Layer State Changed
events when the disabled slot has settled down.

It is still possible to re-enable the device if it remains in the slot
after pressing the Attention Button by pressing it again.

Fixes the problem that Micah reported below: an NVMe drive power button may
not actually turn off the drive.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=203237
Reported-by: Micah Parrish <micah.parrish@hpe.com>
Tested-by: Micah Parrish <micah.parrish@hpe.com>
Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@yadro.com>
[bhelgaas: changelog, add bugzilla URL]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org	# v4.19+
2019-04-10 16:06:43 -05:00
..
controller pci-v5.1-changes 2019-03-09 14:57:08 -08:00
endpoint PCI: pci-epf-test: Use pci_epc_get_features() to get EPC features 2019-02-15 10:01:16 +00:00
hotplug PCI: pciehp: Ignore Link State Changes after powering off a slot 2019-04-10 16:06:43 -05:00
pcie PCI/LINK: Deduplicate bandwidth reports for multi-function devices 2019-03-25 17:59:07 -05:00
switch cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
access.c PCI: Uninline PCI bus accessors for better ftracing 2018-10-04 16:37:37 -05:00
ats.c PCI/ATS: Add pci_ats_page_aligned() interface 2019-02-26 11:08:07 +01:00
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: Add flag so platforms can skip VF scanning 2019-01-01 19:04:37 -06:00
irq.c PCI: Use IRQF_ONESHOT if pci_request_irq() called with no handler 2018-07-31 10:43:43 -05:00
Kconfig PCI: Fix PCI kconfig menu organization 2019-01-14 17:01:20 -06:00
Makefile PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set 2018-12-20 10:19:49 +01:00
mmap.c PCI: Tidy comments 2018-03-19 14:20:43 -05:00
msi.c PCI/MSI: Remove obsolete sanity checks for multiple interrupt sets 2019-02-18 11:21:29 +01:00
of.c PCI: Use of_node_name_eq() for node name comparisons 2019-01-22 14:13:02 -06:00
p2pdma.c pci-v4.21-changes 2019-01-05 17:57:34 -08:00
pci-acpi.c PCI / ACPI: Identify untrusted PCI devices 2018-12-05 12:01:55 +03:00
pci-bridge-emul.c PCI: pci-bridge-emul: Extend pci_bridge_emul_init() with flags 2019-02-22 10:51:14 +00:00
pci-bridge-emul.h PCI: pci-bridge-emul: Extend pci_bridge_emul_init() with flags 2019-02-22 10:51:14 +00:00
pci-driver.c PCI: Clean up usage of __u32 type 2019-02-08 13:40:36 -06:00
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 PCI: pci-sysfs.c: convert to use BUS_ATTR_WO 2019-01-22 14:25:26 +01:00
pci.c pci-v5.1-changes 2019-03-09 14:57:08 -08:00
pci.h PCI/LINK: Deduplicate bandwidth reports for multi-function devices 2019-03-25 17:59:07 -05:00
probe.c PCI/LINK: Deduplicate bandwidth reports for multi-function devices 2019-03-25 17:59:07 -05:00
proc.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
quirks.c PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller 2019-04-05 16:11:16 -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: Rely on config space header type, not class code 2019-01-30 10:57:08 -06:00
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