From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f173.google.com (mail-pf1-f173.google.com [209.85.210.173]) (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 1F5812F7AD0 for ; Fri, 30 Jan 2026 10:03:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769767440; cv=none; b=kKJjRmzeaj5TklvnxQBnXltJfYTh2KNIg7PWDGvr81nl63VqFqfGVX7YDkNxNwfUNxqcYnqlEmpQP37cGpW6ci9zNIMUtX3kDKteOiqSHI3k5QdBQAGxesTlPz+EV+vZ8xvwnaymRL1NAcuONKNgIoJd7UoX9LwuoO1l6M/KY5g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769767440; c=relaxed/simple; bh=iG5EFLIToVmaX4Lo8n6rv9sq2nVvIASWkP9kw5fJngI=; h=Mime-Version:Content-Type:Date:Message-Id:Cc:Subject:From:To: References:In-Reply-To; b=KbHCaauO7gkFHAE2TKosfct12ZlX5uXJy7w8SW4MqCDfYuwJpTQVh4RsgDosDTGjlsODGnT1ejfA0jLlbSo4soHRzaN0sLnT7/kJxkS0IVBH7pNdka3tZXu0GddNFsGCTv8KG2sHrOKZP6gcEx1ayN+ohSYN3qIt6DuazMdEu0s= 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=fbA81l6q; arc=none smtp.client-ip=209.85.210.173 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="fbA81l6q" Received: by mail-pf1-f173.google.com with SMTP id d2e1a72fcca58-8230d228372so1025386b3a.1 for ; Fri, 30 Jan 2026 02:03:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769767438; x=1770372238; darn=vger.kernel.org; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=cj2UVr4AwkNfFQ24cDHGjp0w8M2eMkgYBCeN86uDgnY=; b=fbA81l6qHMH1otGRFfkKDSSvRN0XGL2qFDFO5VZC/1dxDpWUn85vNRnTPZsPMFhgu9 Hbo2C7d5w0mpYJRTyYd9YLFst38RBn6UKrhwjwXE9eltEd5OHax6ccHjUiG1u5RUB4Cv +cZR17/NQTXSI2COjldxdug3szO/mRsiHneaiXNoT5uAsf53O3p7/adW+mprMZ3m7/xp eD7e9lZi4YcVltbMhwdC34l1zLZXkLhezJqOrT/SGwokbS2OB5/HbJDZAFaUCN/VUinQ eDMlyhGNu/jFwhDjdNmBdpSXxGWNKCzJ7QuqG+J9nWzEKoNdNx0Jf8Mxw8vbKk1X2RRV /Gog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769767438; x=1770372238; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:x-gm-gg:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=cj2UVr4AwkNfFQ24cDHGjp0w8M2eMkgYBCeN86uDgnY=; b=UxFmaLeQWyg1QlfyGkitrDT1ln66SU2hAAoFoSQgTcluGhIa51xgDNmjZNOti2uHwe ozzBQ95AV7PTGgkzLhAQpB1qKANz3EUPRR85hi9W9IDzFSmpAlNX3viYgYGFpe3gI6GI 0bynJUBMDumBMvJ74PSXcToiqbg0ed2VIL56rct+X7+qvl3KdZ2MGrpIdcSewSSLc7yE roOGua8mD5SYrF9T9EwSd2OFvWjpL/yYU/lOzJIh81JhNQh3s1IC1B3IgPfVrcYuG2nT PSw+sXYtxDxKemMTiN9hAiHxvjWac5qJAm4a4aMM3LnVMhB3q2sSO51xdu7U1IjUw2uY NPcw== X-Forwarded-Encrypted: i=1; AJvYcCUx2BGJ7fiQDihLlEdlcVdM6oNWSSmCI8d4KJL7hTykEhX6D5QGMGLuBaGHZuZe2tiz0edrb8Lfpmjvmqg=@vger.kernel.org X-Gm-Message-State: AOJu0YxfRSb3zLgObMFyDpTMY3ou/L2O2fl/4fjDmSV0KuN5TJO68rOZ QDm9oR6ISY3ok8/I9uJ9nWMqVO1Iaw8jva/Y7KAnrtLjBFaAFb4xaIG3 X-Gm-Gg: AZuq6aKBRqlKGNOxkfIOwT/V4hZHZ3JPxje7gJIopZZUUffcw+03T6WyJq5oeNE9ur5 OMkq0fEavnPjMjD4dHSMb270y/U+zGYlF71W4MVNDb1X87HYPyozloiLXDQQ9NsEteZ/wA+Mftn 7QcgqDe1O7bvAExW/7t/yItaEJBXf4rCAKCfOl6ZioXkU9UyeUSYDWPzTMjdQoNXmNMtwLGpCjU OHZngTxVLc1XzSh0O+731AJxEiQrKLOQnRICtQJ2p7HBTjC6U7XboVsyCuhPPhGothS6/Llz20G EdEumR+R5BNvf36rwMdH74Lr/8aQib+nKhHOPliqEpWXfSmnnQ6d+Yj9SYeWJsTypEvClaK5/OS O6E4li0P2EGzj/6u29RZypzQxWcKF1cYzLtpvJHNnbsc43E+NOMzz3Vo4Vz71Ti+SCzzsU9d4GT FUyupqtw== X-Received: by 2002:a05:6a00:1ca1:b0:823:167a:4790 with SMTP id d2e1a72fcca58-823ab6bb713mr2216855b3a.26.1769767438441; Fri, 30 Jan 2026 02:03:58 -0800 (PST) Received: from localhost ([112.149.32.52]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82379b48531sm7602480b3a.16.2026.01.30.02.03.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 30 Jan 2026 02:03:57 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 30 Jan 2026 19:03:51 +0900 Message-Id: Cc: "Miguel Ojeda" , "Boqun Feng" , "Gary Guo" , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Alice Ryhl" , "Trevor Gross" , "Danilo Krummrich" , "Alexandre Courbot" , , , , Subject: Re: [PATCH v5 1/4] rust: macros: add derive macro for `Into` From: "Jesung Yang" To: "Charalampos Mitrodimas" , "Jesung Yang via B4 Relay" X-Mailer: aerc 0.21.0 References: <20260129-try-from-into-macro-v5-0-dd011008118c@gmail.com> <20260129-try-from-into-macro-v5-1-dd011008118c@gmail.com> In-Reply-To: On Fri Jan 30, 2026 at 1:11 AM KST, Charalampos Mitrodimas wrote: > Jesung Yang via B4 Relay writes: >> +/// ```compile_fail >> +/// # use kernel::macros::Into; >> +/// // `repr(C)` enums are not allowed. >> +/// #[derive(Into)] >> +/// struct Foo(u8); > > Should this be something like this? Also on the TryFrom (patch 2/4). > > /// // `repr(C)` enums are not allowed. > /// #[derive(Into)] > /// #[repr(C)] > /// enum Foo { > /// A, > /// B, > /// } Nice catch, I'll buffer the fix until I get some more feedback. Thanks for taking a look! Best regards, Jesung