From nobody Wed Feb 11 22:35:32 2026 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 D38B9C77B7F for ; Wed, 3 May 2023 08:41:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230062AbjECIlY (ORCPT ); Wed, 3 May 2023 04:41:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229768AbjECIk6 (ORCPT ); Wed, 3 May 2023 04:40:58 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F25F5B90 for ; Wed, 3 May 2023 01:40:13 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-55a40d32a6bso37093647b3.2 for ; Wed, 03 May 2023 01:40:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1683103211; x=1685695211; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=tsKroyIYfOmkggcrqdey4GLuHL/j3Hn3ECNrtbDv+4k=; b=FreTAQEnryHPqC1s5NFCr/rg08FAyWJ++blo3gR3srCPJIWQb0UIrS35Mj4JRYVGcS yIxKzaQKAhNrc+MMIfhu3gstweG2OA1eeSUeZxLxKzOv16T4OIbdG/z6itte0rbfQRh8 iYLOyxDeydvghUIxpKHvzmrd+AD4Q1xBwRXXufmBiYEJ7wOrx4XgyMVZoCFVBcAx549y f0DLrC0U7aAKTvkgLLQWIes+zJFBQQwvu9HHDPgeUtSx1De2In1XceQPUD/Ifn31ru2u G8b8gnRqi7lGLyxzpLtqHQ5vVc6vMTgyJEInukz4V5UJCLR95ke/OkUNSMldz95iDcK4 14yQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683103211; x=1685695211; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=tsKroyIYfOmkggcrqdey4GLuHL/j3Hn3ECNrtbDv+4k=; b=Sx/uUg++Dkx23Ek7fx3a4hvji+5S56tz/AzNIMxUxR4MiSKWbdvF7hKRP9n6OYKDVL 5QGEOvh0M22NT95s44guxnq6gdl96PWguSswxT7fexZEXlxmNaIqzs0Qu8d7kL7iyNQF 89GCac+B3YX9qVptWOQllAGBvihrVAwDLZi4NHwUo7HWVZ1PnBdej51AFwUZbvDkaXiS w0FSAezHGED1uCgvEqP4J1KBtyd1SsWw023B0+n/BQtkyyBCp4tFrWc3I/wW9TEh/XuL wHjKLL9e1nolG17B9fhdKqwLWYSyhizQHcaDgpy4DUldZ4XbhOxImTqw1y0ksAVQVetQ L4fA== X-Gm-Message-State: AC+VfDxT3CKO5fdFsoaAPjRim/6drJiP8yfrVYusJ6Mal0WCaskbKrIe R5lUgePQ4VSOGtorVjhU1yKCp9iFsCP2UKI= X-Google-Smtp-Source: ACHHUZ49hHPRm1pH+uSHGjzOViT5H8XUxKiVJ0tGHFWZkkVa6+RFvZX/3w1ZyAFbdz/Qvp6wo0yb3vkYn/DUt/w= X-Received: from aliceryhl.c.googlers.com ([fda3:e722:ac3:cc00:31:98fb:c0a8:6c8]) (user=aliceryhl job=sendgmr) by 2002:a81:e901:0:b0:54f:b986:9c60 with SMTP id d1-20020a81e901000000b0054fb9869c60mr12213286ywm.7.1683103211316; Wed, 03 May 2023 01:40:11 -0700 (PDT) Date: Wed, 3 May 2023 08:39:41 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.40.1.495.gc816e09b53d-goog Message-ID: <20230503083941.499090-1-aliceryhl@google.com> Subject: [PATCH v1] rust: error: add ERESTARTSYS error code From: Alice Ryhl To: Miguel Ojeda , Wedson Almeida Filho , Alex Gaynor Cc: Boqun Feng , Gary Guo , "=?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?=" , Benno Lossin , Alice Ryhl , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This error code was probably excluded here originally because it never actually reaches user programs when a syscall returns it. However, from the perspective of a kernel driver, it is still a perfectly valid error type, that the driver might need to return. E.g., this can be necessary when a signal occurs during sleep. Signed-off-by: Alice Ryhl --- rust/kernel/error.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index 5f4114b30b94..cbde1b2d29f4 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -58,6 +58,7 @@ pub mod code { declare_err!(EPIPE, "Broken pipe."); declare_err!(EDOM, "Math argument out of domain of func."); declare_err!(ERANGE, "Math result not representable."); + declare_err!(ERESTARTSYS, "Restart the system call."); } =20 /// Generic integer kernel error. base-commit: ea76e08f4d901a450619831a255e9e0a4c0ed162 --=20 2.40.1.495.gc816e09b53d-goog