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[84.248.220.251]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-55a31d9176bsm203689e87.161.2025.07.18.03.34.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Jul 2025 03:34:11 -0700 (PDT) From: Abdiel Janulgue To: acourbot@nvidia.com, dakr@kernel.org, jgg@ziepe.ca, lyude@redhat.com Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Tamir Duberstein , FUJITA Tomonori , linux-kernel@vger.kernel.org (open list), Andrew Morton , Randy Dunlap , Herbert Xu , Caleb Sander Mateos , Petr Tesarik , Sui Jingfeng , Marek Szyprowski , Robin Murphy , airlied@redhat.com, iommu@lists.linux.dev (open list:DMA MAPPING HELPERS), rust-for-linux@vger.kernel.org, Abdiel Janulgue Subject: [PATCH v3 0/2] rust: add initial scatterlist abstraction Date: Fri, 18 Jul 2025 13:33:33 +0300 Message-ID: <20250718103359.1026240-1-abdiel.janulgue@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi all, This is v3 of the rust scatterlist abstraction incorporating feedback and code from Alexandre Courbot. Changes since v3: - After further discussion it seems we need a variant of typestate after all. A major change for this version is to introduce unsafe methods only when using one of the constructors for a SG table. Otherwise nothing in the interface should need to be unsafe. Changes since v2: - Drop typestate pattern. Introduce SGTablePages trait to enforce ownership of the pages to SGTable. Link to v2: https://lore.kernel.org/lkml/20250626203247.816273-1-abdiel.janulgue@gmail.com/ Abdiel Janulgue (2): rust: add initial scatterlist abstraction samples: rust: add sample code for scatterlist abstraction rust/bindings/bindings_helper.h | 1 + rust/helpers/helpers.c | 1 + rust/helpers/scatterlist.c | 30 +++ rust/kernel/dma.rs | 18 ++ rust/kernel/lib.rs | 1 + rust/kernel/scatterlist.rs | 405 ++++++++++++++++++++++++++++++++ samples/rust/rust_dma.rs | 49 +++- 7 files changed, 504 insertions(+), 1 deletion(-) create mode 100644 rust/helpers/scatterlist.c create mode 100644 rust/kernel/scatterlist.rs base-commit: 23b128bba76776541dc09efaf3acf6242917e1f0 -- 2.43.0