From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2BE8C677F1 for ; Fri, 24 Feb 2023 08:50:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229602AbjBXIuj (ORCPT ); Fri, 24 Feb 2023 03:50:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229497AbjBXIui (ORCPT ); Fri, 24 Feb 2023 03:50:38 -0500 Received: from mail.marcansoft.com (marcansoft.com [212.63.210.85]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C23F31206D; Fri, 24 Feb 2023 00:50:35 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: linasend@asahilina.net) by mail.marcansoft.com (Postfix) with ESMTPSA id 9110B3FA55; Fri, 24 Feb 2023 08:50:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=asahilina.net; s=default; t=1677228633; bh=tQrGaAqMYCBhKSnr1KfIUiJLe3za3ls9Y5ZjKTRKLPw=; h=From:Subject:Date:To:Cc; b=UnzTzOwjsEg7GMA3hTnS3jxTaWR7RRJM2Qbhz5Yd/kbdKdH5tGs6auw27WcsUhWPm 5SKVedClPkSnzYs0KifMo9+LeWoIpdOmNu4R5Q99BM2apeeXGSrYxshOh113WcTIbU FxtKfkIzfqZh4KGFcDsFIp1fDB8Ephy96kMmoo8W2wgEPnpkKsA2evNZX7ph2heHzJ AMuRvS5cBtlQlQ8953QPlBqwTFNvL7QgCo/cJwI9VKyxRlQAqRswO47ersffubGibt Zx/oQL7hKpmk1gVUpIcLPEIzyAA88JL/B2fWDuP38YIuE2d6qfPNLV+L2MN6wk9Sr+ TOik9QnB5jmFw== From: Asahi Lina Subject: [PATCH 0/5] rust: error: Add missing wrappers to convert to/from kernel error codes Date: Fri, 24 Feb 2023 17:50:18 +0900 Message-Id: <20230224-rust-error-v1-0-f8f9a9a87303@asahilina.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAEp6+GMC/x2NSw6DMAxEr4K8rtXgVuJzlaqLJHXAm4BsqCoh7 t6E5ZuZpznAWIUNxuYA5a+YLLlAe2sgzj5PjPIpDOTo4YieqLttyKqLYqK+a1OIg+sSFCF4Ywz qc5yrMq37/VrXvParcpLfdfZ6n+cf4Gama3wAAAA= To: Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Sven Van Asbroeck Cc: Fox Chen , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, asahi@lists.linux.dev, Asahi Lina X-Mailer: b4 0.12.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1677228630; l=2180; i=lina@asahilina.net; s=20230221; h=from:subject:message-id; bh=tQrGaAqMYCBhKSnr1KfIUiJLe3za3ls9Y5ZjKTRKLPw=; b=3kkWlTBkfsbE+GogOzkuW4+mkz3cQDoMrBDE+y9cx7KXvHr4jG+I4+ATuSs+6374g3Ubh0SQ6 l5k0Hli7jKsCeldS7hAxcjsI0BjX+MDCQunCDCnLwVq5bitF70CWnKd X-Developer-Key: i=lina@asahilina.net; a=ed25519; pk=Qn8jZuOtR1m5GaiDfTrAoQ4NE1XoYVZ/wmt5YtXWFC4= Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org Hi everyone! This series is part of the set of dependencies for the drm/asahi Apple M1/M2 GPU driver. It adds a bunch of missing wrappers in kernel::error, which are useful to convert to/from kernel error codes. Since these will be used by many abstractions coming up soon, I think it makes sense to merge them as soon as possible instead of bundling them with the first user. Hence, they have allow() tags to silence dead code warnings. These can be removed as soon as the first user is in the kernel crate. Getting this in first allows the subsequent abstractions to be merged in any order, so we don't have to worry about piecewise rebasing and fixing conflicts in the Error wrappers. See [1] for a complete tree with the DRM abstractions and all other miscellaneous work-in-progress prerequisites rebased on top of mainline. Most of these have been extracted from the rust-for-linux/rust branch, with author attribution to the first/primary author and Co-developed-by: for everyone else who touched the code. Attribution changes: - One of the patches had Miguel's old email in the tags, updated that per his request. - Wedson's email changed from @google.com to @gmail.com (I understand this is the current one). Sven: There is one patch from you in this series, do you want to send it yourself directly? I understand Wedson and Miguel are okay with me sending stuff on their behalf. [1] https://github.com/Rust-for-Linux/linux/pull/969/commits Signed-off-by: Asahi Lina --- Asahi Lina (1): rust: error: Add Error::to_ptr() Miguel Ojeda (1): rust: error: Add Error::from_kernel_errno() Sven Van Asbroeck (1): rust: error: Add a helper to convert a C ERR_PTR to a `Result` Wedson Almeida Filho (2): rust: error: Add to_result() helper rust: error: Add from_kernel_result!() macro rust/helpers.c | 19 +++++++ rust/kernel/error.rs | 137 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 156 insertions(+) --- base-commit: 83f978b63fa7ad474ca22d7e2772c5988101c9bd change-id: 20230224-rust-error-f2871fbc907f Thank you, ~~ Lina