diff options
| author | Rob Herring <robh@kernel.org> | 2023-02-10 19:43:51 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-02-14 00:29:56 +0300 |
| commit | 6fffbc7ae1373e10b989afe23a9eeb9c49fe15c3 (patch) | |
| tree | 829c3d406b251909de62382aa3cc359f0106022b /drivers/pci | |
| parent | c768f8c5f40fcdc6f058cc2f02592163d6c6716c (diff) | |
| download | linux-6fffbc7ae1373e10b989afe23a9eeb9c49fe15c3.tar.xz | |
PCI: Honor firmware's device disabled status
If a device has a firmware node (DT/ACPI), and the device is marked
disabled, that is currently ignored. Add a check for this condition and
bail out creating the pci_dev.
This assumes the config space for the device can still be accessed because
they already have by this point in order to identify the device.
Link: https://lore.kernel.org/r/20230210164351.2687475-1-robh@kernel.org
Tested-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Liu Peibao <liupeibao@loongson.cn>
Cc: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/probe.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 1779582fb500..b1d80c1d7a69 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1841,6 +1841,8 @@ int pci_setup_device(struct pci_dev *dev) pci_set_of_node(dev); pci_set_acpi_fwnode(dev); + if (dev->dev.fwnode && !fwnode_device_is_available(dev->dev.fwnode)) + return -ENODEV; pci_dev_assign_slot(dev); |