[PATCH v2 0/2] rust: pci: don't probe() VFs in nova-core

John Hubbard
2025-10-02T02:00:14Z

Changes in v2:

1) Completely rewrote the series, using Danilo's suggested approach of
"driver supports VF probing or not": the PCI driver core will skip
probing any device's VFs if the driver has coded itself as "not
supporting VFs".

2) Included Joel's clarification, as a comment in the code, about what
happens if VFs are probed.

As with v1 [1], I've based this on top of today's driver-core-next [2],
because the first patch belongs there, and the second patch applies
cleanly to either driver-core-next or drm-rust-next. So this seems like
the easiest to work with.

[1]] https://lore.kernel.org/20250930220759.288528-1-jhubbard@nvidia.com
[2] https://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core.git/

Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Joel Fernandes <joelagnelf@nvidia.com>
Cc: Zhi Wang <zhiw@nvidia.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Danilo Krummrich <dakr@kernel.org>

John Hubbard (2):
rust: pci: skip probing VFs if driver doesn't support VFs
gpu: nova-core: declare that VFs are not (yet) supported

drivers/gpu/nova-core/driver.rs | 5 +++++
drivers/pci/pci-driver.c | 3 +++
include/linux/pci.h | 1 +
rust/kernel/pci.rs | 4 ++++
4 files changed, 13 insertions(+)

base-commit: 6d97171ac6585de698df019b0bfea3f123fd8385
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2.51.0