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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11C53C433E5 for ; Tue, 28 Jul 2020 16:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E13F12074F for ; Tue, 28 Jul 2020 16:01:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DLf3hUTw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731235AbgG1QBj (ORCPT ); Tue, 28 Jul 2020 12:01:39 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:35612 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731212AbgG1QBi (ORCPT ); Tue, 28 Jul 2020 12:01:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595952097; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Odxlq9Ln5GrmGx+aMPEKeiGZ+J1+ZE/sVWWvuPsLyGs=; b=DLf3hUTw4Ilb9SdLSGmAkL9FiXSInpd2TwwxpS5xnUb59zlT2BxIhHe3fLM7Ky8VlyEjXt 7rMoqNpHjGcUtsZPPcwG66HhjjBA9DFdEYkZnAzJ6SO0Gt3hFnKn1EeOwPX3we3AWY8+M0 app0GVp9s3gs3fqfPqEc/zThv7Ps0gI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-201-469_zStINx24Kcz1HIo-5w-1; Tue, 28 Jul 2020 12:01:34 -0400 X-MC-Unique: 469_zStINx24Kcz1HIo-5w-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DD7B2E919; Tue, 28 Jul 2020 16:01:31 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-112-109.ams2.redhat.com [10.36.112.109]) by smtp.corp.redhat.com (Postfix) with ESMTP id B985F5D9CD; Tue, 28 Jul 2020 16:01:19 +0000 (UTC) From: Stefano Garzarella To: Jens Axboe Cc: io-uring@vger.kernel.org, Alexander Viro , Kees Cook , Jeff Moyer , Kernel Hardening , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Sargun Dhillon , Stefan Hajnoczi , Christian Brauner , Jann Horn Subject: [PATCH v3 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes Date: Tue, 28 Jul 2020 18:00:59 +0200 Message-Id: <20200728160101.48554-2-sgarzare@redhat.com> In-Reply-To: <20200728160101.48554-1-sgarzare@redhat.com> References: <20200728160101.48554-1-sgarzare@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org The enumeration allows us to keep track of the last io_uring_register(2) opcode available. Behaviour and opcodes names don't change. Signed-off-by: Stefano Garzarella --- include/uapi/linux/io_uring.h | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 7843742b8b74..efc50bd0af34 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -253,17 +253,22 @@ struct io_uring_params { /* * io_uring_register(2) opcodes and arguments */ -#define IORING_REGISTER_BUFFERS 0 -#define IORING_UNREGISTER_BUFFERS 1 -#define IORING_REGISTER_FILES 2 -#define IORING_UNREGISTER_FILES 3 -#define IORING_REGISTER_EVENTFD 4 -#define IORING_UNREGISTER_EVENTFD 5 -#define IORING_REGISTER_FILES_UPDATE 6 -#define IORING_REGISTER_EVENTFD_ASYNC 7 -#define IORING_REGISTER_PROBE 8 -#define IORING_REGISTER_PERSONALITY 9 -#define IORING_UNREGISTER_PERSONALITY 10 +enum { + IORING_REGISTER_BUFFERS, + IORING_UNREGISTER_BUFFERS, + IORING_REGISTER_FILES, + IORING_UNREGISTER_FILES, + IORING_REGISTER_EVENTFD, + IORING_UNREGISTER_EVENTFD, + IORING_REGISTER_FILES_UPDATE, + IORING_REGISTER_EVENTFD_ASYNC, + IORING_REGISTER_PROBE, + IORING_REGISTER_PERSONALITY, + IORING_UNREGISTER_PERSONALITY, + + /* this goes last */ + IORING_REGISTER_LAST +}; struct io_uring_files_update { __u32 offset; -- 2.26.2