From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 317787E105 for ; Sun, 11 May 2025 18:21:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746987716; cv=none; b=Jnec2Q3zeLMCV0TfTbeiwKm+gVYNLFrpr5ODGXxhRyF2P+iToexEMOLjERcc+eV03Jgp24BV0lwl0bmp4sGp5r3u5l+vxB0JnTTO5wvAjh0taXLLCrZ/0I8pDPF11aBhkkx1VHDBXOSHmxPJ2gTA395oOADsmEyeetOvnmREeD4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746987716; c=relaxed/simple; bh=OQU/MiZE+lT78EcpBRSF2Uz+WZgrmhl5vkUnIF/lTd8=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=WuNPPj55ZVRGjAnlqD6q3BGXXnZ0itHfLTVb2mP4ikeZ6WmzRfKRQHNYAKKgyI+O7ffUTT0d4VxRWhM9C+vU4YRPtnvCP5cX0g1nA/eDy8SPesSWOIHILMA5dRnoLatjWXu0eWrKWb+2dSCR77Gdw5D6iKdPRUEckhLTLVBdTCE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=dMFM0KcY; arc=none smtp.client-ip=209.85.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="dMFM0KcY" Received: by mail-wm1-f53.google.com with SMTP id 5b1f17b1804b1-43ede096d73so25811585e9.2 for ; Sun, 11 May 2025 11:21:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1746987712; x=1747592512; darn=lists.linux.dev; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:from:to:cc:subject:date:message-id:reply-to; bh=mZ0kQFFRJhlcfHJoNQHTfxXn8KRZzMbJfL2Nt0WYTos=; b=dMFM0KcYaZzj6TYcLueS0vdCUuzkdhkXkfemj0I6zMsxpuTqU4OgwN1hjhECpYJfcS eYVA2h34xECtJVxdMAwCEnXSQuXIrU1IwodOoqU9JR5fD4Jd/+y6E2QM+6nrX6edTZNM v67bmJaJ83LCWNdiLUIVVdIb0aVfkofDMZfi+awKkMP1BVNO4+5x0Tr7t8RoiEmCtx30 S8F9AElqf5wkk285makIGdSUJ1Ij5tRLf789O6v8/10sFNZ7h8Jqylw8V9yflZ/s5xkk sdgqo1vikEoZ1uZvyBwjzIpHTVRo555fAgsfdqxPpiTHUvk57/DVGopbqVhh4bfhXnp4 m5iA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1746987712; x=1747592512; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=mZ0kQFFRJhlcfHJoNQHTfxXn8KRZzMbJfL2Nt0WYTos=; b=IcH7++8noxqIL3SJ6ZV+BLxfED8cmWSoNqwQD0YDKGVcSuZdecYnTi/JirG1n9aMq4 W5k0Z3vLQhDESSbT0wuLvFTYoauTEKeeUyF9LQdwBsNs38ekR5nlT5VbeoSgpGKlzB2N 9O3FnVrZ9ZfmPkP2A0xKLy2dGgHwsTOZl6xJQSx7p9WPBqfZG7OmL/0+RyqZnWC07Xam b4aCoqncBEldy2T2EsSrqI2crhMOe/aimYd8Us5e16qvo3afuEP4d6NbiG0hwpyWnqA0 y/v1Xa4541ijOVJna+R4cNbBso/M9B3cv/3CQXnrgYPqLgQTnImYFUbr0IG84BxdVJwI 6Giw== X-Forwarded-Encrypted: i=1; AJvYcCVLkyY9eWswK0LV1ZaRHvl2cZg6vWFL9rrLe+FQ71EztZdkNyXrQtgJCXEsOEwA0sAjkY4q@lists.linux.dev X-Gm-Message-State: AOJu0YxTKuzml2rSgdllCSS7S6LHKm2iyjc8kjCOZTpI7NMaMt5ugauI qiAuQO+wIfpLrPfOJwg67IATJCRjMyeB2Zx5GL0ydrCrwhuR8HO2 X-Gm-Gg: ASbGncuKYd9j8TV6CZqB28fhszQAZxZVt23AOoRBoFBNUBBWdUT0x/w7xxbW2S8t6YR LDLF2r/wBvk+2sDHEMIZU1WQLzdOu4LcwAV2Nue3RY0E9gdwycCN2WJ3Mdkg9+wSfaDhATLzgkH ZCtbUCHDlJl1RkiuZL9DWQdv/v33NdkZv2XNziQjc485icpUcNUF1elBVYFXWiwLswmWy/BaClH sMl95PsX0b2LZdy3xy0L6jFByXAwaFP5pB6W+nHiAYwCSCF1vIBMaRJR1iCS2gt+ro0NpNvLO39 Rs49rPc1bq8u5S/7r1YP36Zt70V4RLfdx5gdi78= X-Google-Smtp-Source: AGHT+IEedUo0JnIyvB+xFL02RSn4lSVKbzxYFR8cCI0p+JgetbwSYY+hM3hU0Kr1wgriVJhQ9olIlg== X-Received: by 2002:a05:600c:c18:b0:43d:82c:2b11 with SMTP id 5b1f17b1804b1-442d6dc7ce7mr80549435e9.23.1746987712257; Sun, 11 May 2025 11:21:52 -0700 (PDT) Received: from [10.0.1.56] ([2001:871:22a:99c5::1ad1]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-442d67d5c7bsm100418495e9.4.2025.05.11.11.21.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 May 2025 11:21:51 -0700 (PDT) From: Christian Schrefl Subject: [PATCH v4 0/3] rust: add `UnsafePinned` type Date: Sun, 11 May 2025 20:21:37 +0200 Message-Id: <20250511-rust_unsafe_pinned-v4-0-a86c32e47e3d@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=H4sIALHqIGgC/33Q2wrCMAwG4FeRXltperCdV76HiIw2nQXttN2GI nt36wEUGV7+CflCciMZU8BMVrMbSTiEHNpYgpzPiN3XsUEaXMmEM66YBENTn7tdH3PtcXcKMaK jpgJnkevSdqQMnhL6cHmim23J+5C7Nl2fOwZ4VP9yA1CgVlqtlBFV5c26OdbhsLDtkTy4gX8Rg k0SnDLqrVmCrrVkXP4S4kMomCZEIZS2CAqAC199E+PryoTnvnyse586jneD2LxQTwEAAA== 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=1746987711; l=2125; i=chrisi.schrefl@gmail.com; s=20250119; h=from:subject:message-id; bh=OQU/MiZE+lT78EcpBRSF2Uz+WZgrmhl5vkUnIF/lTd8=; b=nI4QpPmvG+e68Xcuk6TCzr//BZzS8dD3iJ1+NjwZ0fHhMa+3ZLXlhzDpkhzD8kIieZGm7tUg3 pmCGq3XM31iCx7aLSPTYclz3sA4wPVTL7ug9a2sTHvp1HcP5fGzmhpS 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 v4: - Reworked `UnsafePinned::add` doctest to not use get_mut_unchecked. - Link to v3: https://lore.kernel.org/r/20250510-rust_unsafe_pinned-v3-0-57ce151123f9@gmail.com 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 | 111 +++++++++++++++++++++++++++++++++++++ 3 files changed, 138 insertions(+), 20 deletions(-) --- base-commit: 9de1a293c8ece00d226b21a35751ec178be2a9fa change-id: 20250418-rust_unsafe_pinned-891dce27418d Best regards, -- Christian Schrefl