From: Deborah Brouwer <deborah.brouwer@collabora.com>
To: "Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>
Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Deborah Brouwer <deborah.brouwer@collabora.com>
Subject: [PATCH v3 0/2] drm/tyr: allow mismatched buffers for dev_query
Date: Fri, 16 Oct 2026 13:44:19 -0700 [thread overview]
Message-ID: <20261016-b4-dev_query_fixes-v3-0-f8071cda3515@collabora.com> (raw)
Panthor UAPI for DRM_IOCTL_TYR_DEV_QUERY allows userspace to provide
a smaller or larger buffer than the kernel needs. Revise Tyr's
implementation to match the expected UAPI behaviour.
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
---
Changes in v3:
- replace "as" cast with lossless u32_as_usize()
- Link to v2: https://lore.kernel.org/r/20261015-b4-dev_query_fixes-v2-0-e3e6d25050cb@collabora.com
Changes in v2:
- Added #[inline] to UserSliceWriter::clear()
- Link to v1: https://lore.kernel.org/r/20261014-b4-dev_query_fixes-v1-0-92043100b472@collabora.com
---
Deborah Brouwer (2):
rust: uaccess: add UserSliceWriter::clear()
drm/tyr: allow userspace buffers to be mismatched
drivers/gpu/drm/tyr/file.rs | 47 +++++++++++++++++++++++++++++++++++++--------
rust/helpers/uaccess.c | 6 ++++++
rust/kernel/uaccess.rs | 24 +++++++++++++++++++++++
3 files changed, 69 insertions(+), 8 deletions(-)
---
base-commit: 3497a403264b094ebd61b8b755165d56e7d9dc37
change-id: 20261014-b4-dev_query_fixes-4e0ab024294a
Best regards,
--
Deborah Brouwer <deborah.brouwer@collabora.com>
next reply other threads:[~2026-10-16 20:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-16 20:44 Deborah Brouwer [this message]
2026-10-16 20:44 ` [PATCH v3 1/2] rust: uaccess: add UserSliceWriter::clear() Deborah Brouwer
2026-10-16 20:44 ` [PATCH v3 2/2] drm/tyr: allow userspace buffers to be mismatched Deborah Brouwer
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