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| author | Max Gurtovoy <mgurtovoy@nvidia.com> | 2021-08-26 12:39:08 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2021-08-26 18:36:51 +0200 |
| commit | 343b7258687ecfbb363bfda8833a7cf641aac524 (patch) | |
| tree | 434e78584525876789777812c37e572de60dd563 /Documentation/PCI | |
| parent | vfio/pci: Move module parameters to vfio_pci.c (diff) | |
| download | linux-343b7258687ecfbb363bfda8833a7cf641aac524.tar.xz linux-343b7258687ecfbb363bfda8833a7cf641aac524.zip | |
PCI: Add 'override_only' field to struct pci_device_id
Add 'override_only' field to struct pci_device_id to be used as part of
pci_match_device().
When set, a driver only matches the entry when dev->driver_override is
set to that driver.
In addition, add a helper macro named 'PCI_DEVICE_DRIVER_OVERRIDE' to
enable setting some data on it.
Next patch from this series will use the above functionality.
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20210826103912.128972-10-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'Documentation/PCI')
| -rw-r--r-- | Documentation/PCI/pci.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst index fa651e25d98c..87c6f4a6ca32 100644 --- a/Documentation/PCI/pci.rst +++ b/Documentation/PCI/pci.rst @@ -103,6 +103,7 @@ need pass only as many optional fields as necessary: - subvendor and subdevice fields default to PCI_ANY_ID (FFFFFFFF) - class and classmask fields default to 0 - driver_data defaults to 0UL. + - override_only field defaults to 0. Note that driver_data must match the value used by any of the pci_device_id entries defined in the driver. This makes the driver_data field mandatory |