Add a new method to create PCI DeviceIds that match both a specific
vendor and PCI class. This is more targeted than the existing
from_class() method as it filters on both vendor and class criteria.
Cc: Danilo Krummrich <dakr@xxxxxxxxxx>
Cc: Alexandre Courbot <acourbot@xxxxxxxxxx>
Cc: Elle Rhumsaa <elle@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
rust/kernel/pci.rs | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs
index d4675b7d4a86..504593c882c9 100644
--- a/rust/kernel/pci.rs
+++ b/rust/kernel/pci.rs
@@ -161,6 +161,27 @@ pub const fn from_class(class: u32, class_mask: u32) -> Self {
override_only: 0,
})
}
+
+ /// Create a new `pci::DeviceId` from a class number, mask, and specific vendor.
+ ///
+ /// This is more targeted than [`DeviceId::from_class`]: in addition to matching by Vendor, it
+ /// also matches the PCI Class (up to the entire 24 bits, depending on the mask).
+ pub const fn from_class_and_vendor(
+ class: Class,
+ class_mask: ClassMask,
+ vendor: Vendor,
+ ) -> Self {
+ Self(bindings::pci_device_id {
+ vendor: vendor.as_raw(),
+ device: DeviceId::PCI_ANY_ID,
+ subvendor: DeviceId::PCI_ANY_ID,
+ subdevice: DeviceId::PCI_ANY_ID,
+ class: class.as_raw(),
+ class_mask: class_mask.as_raw(),
+ driver_data: 0,
+ override_only: 0,
+ })
+ }
}
// SAFETY: `DeviceId` is a `#[repr(transparent)]` wrapper of `pci_device_id` and does not add
--
2.50.1
