linux-kernel - Re: [PATCH v4 1/6] nova-core: bitfield: Move bitfield-specific code from register! into new macro

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Message-ID: <2025092148-huntsman-existing-5052@gregkh>
Date: Sun, 21 Sep 2025 13:23:02 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Joel Fernandes <joelagnelf@...dia.com>, linux-kernel@...r.kernel.org,
	rust-for-linux@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	dakr@...nel.org, acourbot@...dia.com,
	Alistair Popple <apopple@...dia.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
	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>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	John Hubbard <jhubbard@...dia.com>, Timur Tabi <ttabi@...dia.com>,
	joel@...lfernandes.org, Elle Rhumsaa <elle@...thered-steel.dev>,
	Yury Norov <yury.norov@...il.com>,
	Daniel Almeida <daniel.almeida@...labora.com>,
	nouveau@...ts.freedesktop.org
Subject: Re: [PATCH v4 1/6] nova-core: bitfield: Move bitfield-specific code
 from register! into new macro

On Sun, Sep 21, 2025 at 11:59:05AM +0200, Miguel Ojeda wrote:
> On Sun, Sep 21, 2025 at 11:36 AM Greg KH <gregkh@...uxfoundation.org> wrote:
> >
> > And where does this allow us to define things like BIT(2) for values?
> > (ok, that's kind of not the point of this patch series, but it will come
> > up over time...)
> 
> We have the `bits` module since 6.17:
> 
>     https://rust.docs.kernel.org/kernel/bits/index.html
> 
> (Or do you mean something else?)

No, that's exactly what I was thinking of, sorry, I missed that :)

greg k-h