linux-kernel - Re: [PATCH 0/2] rust: pci: expose is_virtfn() and reject VFs in nova-core

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Message-Id: <DD7UE89USTBA.IQ7QR72RUSVB@kernel.org>
Date: Thu, 02 Oct 2025 14:41:17 +0200
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Jason Gunthorpe" <jgg@...dia.com>
Cc: "John Hubbard" <jhubbard@...dia.com>, "Zhi Wang" <zhiw@...dia.com>,
 "Alistair Popple" <apopple@...dia.com>, "Alexandre Courbot"
 <acourbot@...dia.com>, "Joel Fernandes" <joelagnelf@...dia.com>, "Timur
 Tabi" <ttabi@...dia.com>, "Surath Mitra" <smitra@...dia.com>, "David
 Airlie" <airlied@...il.com>, "Simona Vetter" <simona@...ll.ch>, "Bjorn
 Helgaas" <bhelgaas@...gle.com>, Krzysztof Wilczyński
 <kwilczynski@...nel.org>, "Miguel Ojeda" <ojeda@...nel.org>, "Alex Gaynor"
 <alex.gaynor@...il.com>, "Boqun Feng" <boqun.feng@...il.com>, "Gary Guo"
 <gary@...yguo.net>, Björn Roy Baron
 <bjorn3_gh@...tonmail.com>, "Benno Lossin" <lossin@...nel.org>, "Andreas
 Hindborg" <a.hindborg@...nel.org>, "Alice Ryhl" <aliceryhl@...gle.com>,
 "Trevor Gross" <tmgross@...ch.edu>, "nouveau@...ts.freedesktop.org"
 <nouveau@...ts.freedesktop.org>, "linux-pci@...r.kernel.org"
 <linux-pci@...r.kernel.org>, "rust-for-linux@...r.kernel.org"
 <rust-for-linux@...r.kernel.org>, "LKML" <linux-kernel@...r.kernel.org>,
 "Alex Williamson" <alex.williamson@...hat.com>
Subject: Re: [PATCH 0/2] rust: pci: expose is_virtfn() and reject VFs in
 nova-core

On Thu Oct 2, 2025 at 2:32 PM CEST, Jason Gunthorpe wrote:
> On Thu, Oct 02, 2025 at 02:08:27PM +0200, Danilo Krummrich wrote:
>
>> Why? What about other upstream drivers that clearly assert that they don't
>> support VFs?
>
> They shouldn't be doing that either. There is lots of junk in Linux,
> that doesn't mean it should be made first-class to encourage more
> people to do the wrong thing.

Let's discontinue this thread and keep discussing in the v2 one, since the
discussions converge.