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[2620:137:e000::1:20]) by mx.google.com with ESMTP id x4-20020a170902a38400b001a66c2f479asi33534915pla.219.2023.05.04.00.15.57; Thu, 04 May 2023 00:16:15 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20221208 header.b=zayMOwpR; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229862AbjEDGtF (ORCPT + 99 others); Thu, 4 May 2023 02:49:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229639AbjEDGtE (ORCPT ); Thu, 4 May 2023 02:49:04 -0400 Received: from mail-ed1-x549.google.com (mail-ed1-x549.google.com [IPv6:2a00:1450:4864:20::549]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3576130 for ; Wed, 3 May 2023 23:49:01 -0700 (PDT) Received: by mail-ed1-x549.google.com with SMTP id 4fb4d7f45d1cf-50bcaec14c2so4190609a12.1 for ; Wed, 03 May 2023 23:49:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1683182940; x=1685774940; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=v54eC/u2pmIq/4VC9DlPX0eq+2LaXAcFRV569X4YYSM=; b=zayMOwpR6S7h8KihPwp0mQ24ajqeNArUPKpxRA0xVbveeGDYAYcBHCmAPFODKJ8f38 4/C0KZc02U2lQ2CyZcRxt8fL3ieUOCJkuTrsVT76+GEu+4smJlQ3U6tv0osqx9sxx+SV Vjp4SlFnh+yr1Want76vSrDBPeOSZ56pU/GqTuyCRc8uKDHCuY7gn2clef1igBk9qSQv XoIxmy59b5p6cRTcTmvo26b/AiBXthnYSt/daZQAv5/aoE85DeaTJoyThSiNSEACOKlZ RNx2Q7zuTFv8avJ/gM0VCQ8CxhHMC3309mCGoKnVYDqcJ/TMFUDDNn6UZlR8LyvvUIj0 VVkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683182940; x=1685774940; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=v54eC/u2pmIq/4VC9DlPX0eq+2LaXAcFRV569X4YYSM=; b=Ou5wL6bcK8Tu+5LOhhhmETXO84ikkPoyq6SJ+gF41PE2+k2vA2FQ6Z1r0uEVtHcACY mLx60xDkGSbjuS+FHK83h7zraZD5r5VDPqYqBN+I3yXMsK8irNh+0XGHngQ4QEpHFBn4 bJSLShfCzVx9d4T7xehqSiVOxE6AwieduP0YwIbR2WH2pSDf+MWnUarG/VzChf1Tuk77 e6RwhR0lygfyreEvotcM0P3NpwKEp/dS+t6QTx6jS8zSRt+AnUgN02265L0TYbcTS1dz E/pZrZTR+2k7J83xS2VIGTciOSe76Fz3ptxaW1QvfKpNaJHjkscTfI2d4yehYb0NHwFg eS1A== X-Gm-Message-State: AC+VfDyHn23z3doZe3fOLEuGISUDqTLEbXwLEQili5LikL3hF2ZRezG9 pAdp2aXaDNZqtWgsnHQ/+vRx+CVycDxMZbc= X-Received: from aliceryhl.c.googlers.com ([fda3:e722:ac3:cc00:31:98fb:c0a8:6c8]) (user=aliceryhl job=sendgmr) by 2002:a17:907:a40e:b0:953:87f8:82e9 with SMTP id sg14-20020a170907a40e00b0095387f882e9mr2147980ejc.7.1683182940371; Wed, 03 May 2023 23:49:00 -0700 (PDT) Date: Thu, 4 May 2023 06:48:54 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.40.1.495.gc816e09b53d-goog Message-ID: <20230504064854.774820-1-aliceryhl@google.com> Subject: [PATCH v2] rust: error: add missing error codes From: Alice Ryhl To: Miguel Ojeda , Wedson Almeida Filho , Alex Gaynor Cc: Boqun Feng , Gary Guo , " =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= " , Benno Lossin , Alice Ryhl , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764946949616415913?= X-GMAIL-MSGID: =?utf-8?q?1764946949616415913?= This adds the error codes from `include/linux/errno.h` to the list of Rust error constants. These errors were not included originally, because they are not supposed to be visible from userspace. However, they are still a perfectly valid error to use when writing a kernel driver. For example, you might want to return ERESTARTSYS if you receive a signal during a call to `schedule`. This patch inserts an annotation to skip rustfmt on the list of error codes. Without it, three of the error codes are split over several lines, which looks terribly inconsistent. Signed-off-by: Alice Ryhl Reviewed-by: Martin Rodriguez Reboredo --- rust/kernel/error.rs | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) base-commit: ea76e08f4d901a450619831a255e9e0a4c0ed162 diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index 5f4114b30b94..de4fa8640f29 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -14,6 +14,7 @@ use core::num::TryFromIntError; use core::str::Utf8Error; /// Contains the C-compatible error codes. +#[rustfmt::skip] pub mod code { macro_rules! declare_err { ($err:tt $(,)? $($doc:expr),+) => { @@ -58,6 +59,25 @@ 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."); + declare_err!(ERESTARTNOINTR, "System call was interrupted by a signal and will be restarted."); + declare_err!(ERESTARTNOHAND, "Restart if no handler."); + declare_err!(ENOIOCTLCMD, "No ioctl command."); + declare_err!(ERESTART_RESTARTBLOCK, "Restart by calling sys_restart_syscall."); + declare_err!(EPROBE_DEFER, "Driver requests probe retry."); + declare_err!(EOPENSTALE, "Open found a stale dentry."); + declare_err!(ENOPARAM, "Parameter not supported."); + declare_err!(EBADHANDLE, "Illegal NFS file handle."); + declare_err!(ENOTSYNC, "Update synchronization mismatch."); + declare_err!(EBADCOOKIE, "Cookie is stale."); + declare_err!(ENOTSUPP, "Operation is not supported."); + declare_err!(ETOOSMALL, "Buffer or request is too small."); + declare_err!(ESERVERFAULT, "An untranslatable error occurred."); + declare_err!(EBADTYPE, "Type not supported by server."); + declare_err!(EJUKEBOX, "Request initiated, but will not complete before timeout."); + declare_err!(EIOCBQUEUED, "iocb queued, will get completion event."); + declare_err!(ERECALLCONFLICT, "Conflict with recalled state."); + declare_err!(ENOGRACE, "NFS file lock reclaim refused."); } /// Generic integer kernel error.