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f58d5f53c8
linux/drivers/pci
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Kunihiko Hayashi f58d5f53c8 PCI: endpoint: Fix clearing start entry in configfs 
After an endpoint is started through configfs, if 0 is written to the
configfs entry 'start', the controller stops but the epc_group->start
value remains 1.

A subsequent unlinking of the function from the controller would trigger
a spurious WARN_ON_ONCE() in pci_epc_epf_unlink() despite right
behavior.

Fix it by setting epc_group->start = 0 when a controller is stopped
using configfs.

Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-31 09:13:27 +01:00
..
controller
PCI: tegra: Add support for PCIe endpoint mode in Tegra194
2020-03-31 09:13:17 +01:00
endpoint
PCI: endpoint: Fix clearing start entry in configfs
2020-03-31 09:13:27 +01:00
hotplug
pci/hotplug/pnv-php: Wrap warnings in macro
2020-01-23 21:31:17 +11:00
pcie
PCI/AER: Initialize aer_fifo
2020-01-23 16:40:03 -06:00
switch
PCI/switchtec: Add Gen4 device IDs
2020-01-15 11:00:40 -06:00
access.c
PCI/AER: Save AER Capability for suspend/resume
2019-10-18 17:05:42 -05:00
ats.c
pci-v5.6-fixes-1
2020-02-06 14:17:38 +00:00
bus.c
PCI: Unexport pci_bus_get() and pci_bus_put()
2019-07-23 18:32:49 -05:00
ecam.c
…
host-bridge.c
…
iov.c
PCI/IOV: Fix memory leak in pci_iov_add_virtfn()
2019-12-09 15:51:32 -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
Merge branch 'pci/trivial'
2019-11-28 08:54:55 -06:00
Makefile
PCI: Allow building PCIe things without PCIEPORTBUS
2019-11-21 07:52:33 -06:00
mmap.c
PCI: Fix typos and whitespace errors
2019-07-09 07:24:53 -05:00
msi.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
of.c
PCI: Make devm_of_pci_get_host_bridge_resources() static
2019-11-20 17:00:14 +00:00
p2pdma.c
PCI/P2PDMA: Add Intel SkyLake-E to the whitelist
2019-12-10 15:15:51 -06:00
pci-acpi.c
Merge branch 'pci/enumeration'
2019-09-23 16:10:08 -05:00
pci-bridge-emul.c
PCI: pci-bridge-emul: Fix big-endian support
2019-10-17 12:42:48 +01:00
pci-bridge-emul.h
PCI: pci-bridge-emul: Fix big-endian support
2019-10-17 12:42:48 +01:00
pci-driver.c
PCI/PM: Add missing link delays required by the PCIe spec
2019-11-20 17:37:24 -06:00
pci-label.c
…
pci-mid.c
x86/cpu: Sanitize FAM6_ATOM naming
2018-10-02 10:14:32 +02:00
pci-pf-stub.c
PCI: Fix typos and whitespace errors
2019-07-09 07:24:53 -05:00
pci-stub.c
PCI: Replace printk(KERN_INFO) with pr_info(), etc
2019-05-09 07:49:54 -05:00
pci-sysfs.c
Merge branch 'pci/resource'
2019-11-28 08:54:36 -06:00
pci.c
IOMMU Updates for Linux v5.6
2020-02-05 17:49:54 +00:00
pci.h
PCI: Fix pci_add_dma_alias() bitmask size
2019-12-18 12:21:16 -06:00
probe.c
Merge branch 'pci/trivial'
2019-11-28 08:54:55 -06:00
proc.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
quirks.c
pci-v5.6-changes
2020-01-31 14:48:54 -08:00
remove.c
PCI/ASPM: Fix link_state teardown on device removal
2018-09-17 16:32:23 -05:00
rom.c
…
search.c
Merge branch 'pci/host-vmd'
2020-01-29 17:00:02 -06:00
setup-bus.c
PCI: Allow adjust_bridge_window() to shrink resource if necessary
2020-01-29 16:57:28 -06:00
setup-irq.c
…
setup-res.c
…
slot.c
PCI: Decode PCIe 32 GT/s link speed
2019-06-13 16:49:45 -05:00
syscall.c
PCI: Lock down BAR access when the kernel is locked down
2019-08-19 21:54:15 -07:00
vc.c
Merge branch 'pci/trivial'
2019-09-23 16:10:31 -05:00
vpd.c
PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port
2019-09-16 14:10:09 +01:00
xen-pcifront.c
Merge branch 'pci/printk'
2019-05-13 18:34:46 -05:00