From: "Gary Guo" <gary@garyguo.net>
To: "Danilo Krummrich" <dakr@kernel.org>, "Gary Guo" <gary@garyguo.net>
Cc: "Deborah Brouwer" <deborah.brouwer@collabora.com>,
"Alice Ryhl" <aliceryhl@google.com>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Trevor Gross" <tmgross@umich.edu>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/2] rust: uapi: add zerocopy/zerocopy_derive
Date: Sat, 26 Sep 2026 21:59:13 +0100 [thread overview]
Message-ID: <DLPJT1IUSKQO.1CAWHDECQAFPO@garyguo.net> (raw)
In-Reply-To: <DLPE0D8F96DE.91C7E0MAERDS@kernel.org>
On Sat Sep 26, 2026 at 5:26 PM BST, Danilo Krummrich wrote:
> On Sat Sep 26, 2026 at 5:50 PM CEST, Gary Guo wrote:
>> On Sat Sep 26, 2026 at 1:26 AM BST, Deborah Brouwer wrote:
>>> @@ -71,3 +71,6 @@
>>> # Structs should implement `Zeroable` when all of their fields do.
>>> --with-derive-custom-struct .*=MaybeZeroable
>>> --with-derive-custom-union .*=MaybeZeroable
>>> +
>>> +# `drm_panthor_gpu_info` is copied byte-for-byte to userspace.
>>> +--with-derive-custom-struct '^drm_panthor_gpu_info$'=zerocopy_derive::most_traits
>>
>> This is Tyr specific change and should be in patch 2.
>
> Why list all of them separately? Can't we apply this to all uAPI structs?
There are types with paddings which cannot derive `IntoBytes`.
Best,
Gary
next prev parent reply other threads:[~2026-09-26 20:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-26 0:26 [PATCH v3 0/2] drm/tyr: safely write GpuInfo to userspace Deborah Brouwer
2026-09-26 0:26 ` [PATCH v3 1/2] rust: uapi: add zerocopy/zerocopy_derive Deborah Brouwer
2026-09-26 15:50 ` Gary Guo
2026-09-26 16:26 ` Danilo Krummrich
2026-09-26 20:59 ` Gary Guo [this message]
2026-09-26 21:38 ` Danilo Krummrich
2026-09-26 0:26 ` [PATCH v3 2/2] drm/tyr: safely write GpuInfo to userspace Deborah Brouwer
2026-09-26 2:44 ` Daniel Almeida
2026-09-26 16:48 ` Danilo Krummrich
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