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Sat, 10 May 2025 02:33:05 -0700 (PDT) Received: from [10.0.1.56] ([2001:871:22a:99c5::1ad1]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-3a1f57ddde0sm5981485f8f.14.2025.05.10.02.33.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 May 2025 02:33:04 -0700 (PDT) From: Christian Schrefl Subject: [PATCH v3 0/3] rust: add `UnsafePinned` type Date: Sat, 10 May 2025 11:32:25 +0200 Message-Id: <20250510-rust_unsafe_pinned-v3-0-57ce151123f9@gmail.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIACkdH2gC/32PQQ6DIBBFr2JYlwYQK3bVezSNITAoSUULStoY7 160Xbhounwz+W/+zCiAtxDQOZuRh2iD7V2C/JAh1UrXALY6MWKEFYRTgf0UxnpyQRqoB+scaCw qqhWwMq01SsHBg7HPTXq9JW5tGHv/2m5Euk7/6iLFFCuuyqIQeVUZcWk6ae9H1Xdo1UW2U+Tkp 4Jhgo0SJ1rKkhPG94rlU9HDY0rvjt+ey/IGjbyv7gwBAAA= X-Change-ID: 20250418-rust_unsafe_pinned-891dce27418d To: Sky , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , =?utf-8?q?Gerald_Wisb=C3=B6ck?= , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, llvm@lists.linux.dev, Christian Schrefl , Benno Lossin X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1746869583; l=1940; i=chrisi.schrefl@gmail.com; s=20250119; h=from:subject:message-id; bh=d/Q2dqkM3hGIa7pRJKatBlt0uQwkDzQUldsLHN8FByw=; b=fNIBzCK2rGyd0yhyM0HMpRMGdhkLEIhOldzeweIjdz3SN+t28c+wI5mzpIAbYaJpghqDYUfAh R7+Mt6jIIYDCc7DYjz6ZSlOkGo3rZKoTob44KU4i16mJdT30+95EDrq X-Developer-Key: i=chrisi.schrefl@gmail.com; a=ed25519; pk=EIyitYCrzxWlybrqoGqiL2jyvO7Vp9X40n0dQ6HE4oU= This version now only has the kernel implementation without the config flag for using the upstream version. Additionally now commits for using `UnsafePinned` in `Opaque` were added. Checkpatch warns about `rust/kernel/types/unsafe_pinned.rs` missing a MAINTAINERS entry. This should be fine because it will be included in the RUST entry. This patchset is based on the pin-init-next branch. Signed-off-by: Christian Schrefl --- Changes in v3: - Dropped CONFIG_RUSTC_HAS_UNSAFE_PINNED and feature(unsafe_pinned) (Alice) - Add comment to `Opaque` reasoning about included `UnsafeCell` (Benno) - Small changes in commit message of Patch 3 (Benno) - Removed docs mentioning not included functions (Benno) - Removed docs mentioning implementation details and added that as comment instead (Benno) - Link to v2: https://lore.kernel.org/r/20250430-rust_unsafe_pinned-v2-0-fc8617a74024@gmail.com Changes in v2: - Expanded `UnsafePinned` documentation to describe differences with upstream rust implementation. - Removed config flag for using upstream `UnsafePinned` type. - Add patch implementing `Wrapper` for `Opaque` - Add patch for using `UnsafePinned` internally in `Opaque` - Link to v1: https://lore.kernel.org/r/20250418-rust_unsafe_pinned-v1-1-c4c7558399f8@gmail.com --- Christian Schrefl (3): rust: add UnsafePinned type rust: implement `Wrapper` for `Opaque` rust: use `UnsafePinned` in the implementation of `Opaque` rust/kernel/revocable.rs | 2 + rust/kernel/types.rs | 45 ++++++++------- rust/kernel/types/unsafe_pinned.rs | 113 +++++++++++++++++++++++++++++++++++++ 3 files changed, 140 insertions(+), 20 deletions(-) --- base-commit: 9de1a293c8ece00d226b21a35751ec178be2a9fa change-id: 20250418-rust_unsafe_pinned-891dce27418d Best regards, -- Christian Schrefl