From patchwork Fri Jun 23 01:31:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 11189 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp5459798vqr; Thu, 22 Jun 2023 18:38:30 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ74HIxPSmt3DHbHC0OhBIi+khd1MMc4f5mb1vKrmDddY/yIQyrqJwVZaNwkL7+KrZOZjpmo X-Received: by 2002:a05:620a:4887:b0:764:48d:be43 with SMTP id ea7-20020a05620a488700b00764048dbe43mr6067841qkb.13.1687484310471; Thu, 22 Jun 2023 18:38:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687484310; cv=none; d=google.com; s=arc-20160816; b=U/PUJ+cculdZc7YDzPxe6TBHX8yilFOFcD4Lr6rCpHQS05xcoZkYSxpLRlpUP08NKv epFk9/9tfTFLFyslwF7RrnDblBpM6W2rcMIGK7LnCq+W4VI1vcS6d045lTtKXzYfVF00 QiGEFQ1HbxDtFk65yAcObSqmqEywDC7tjq6wW5P4/5L/kpsSFhhM5zjSFmwTAmQhuq7z rAk1hjX1hJSvZ6sw2Kt3sN0dh7NELCrifFKt6QvC9n/+3W3lxMM7H0SG25/KsNzE4kRy s0cqp5apyy5NUqhyG3hEMKFhJfc0s0U1+ovov9gnKd4WGDrJYwuOgRAnYwcrw1TAJ2YV MKgQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:subject:cc:to:from:date:user-agent:message-id; bh=aTQVXKeTyNYHspgHTlJ1peF82KlYnu/82fz68asVTSg=; b=Myq6ehUULt/wSk+GAr/vRsjR1CVMxG7WYbWLIthsHSZugZ+4Kq3B0FiIvAiqr/Feg7 HRM7/eJfzgaypb0btMY7hhYvfsgW8/m44x+xs/CGfRFRUezrODofZC0wUYx0oR3Cm7S1 +UL6pYVUnStFsfZ+yYwEY09Y0Ox/JnBk4ZAAZtCdRfFd81YZeYw59P+bgqsGOJWpaNhg C+azoHfOWv8HJMgl93hPnBnKZ1j9aAwL95no+7ZN6L0dE+wN5JELY7FV9BAwhm8b2CRq y4HWodyUWxP+enFOIIzm8nQiKsJmPaJ6qJWhFYUyUmpXASt5B9l0tplGR26tXltJTmkK Ja1Q== ARC-Authentication-Results: i=1; mx.google.com; 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 Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id 205-20020a6302d6000000b0055397816fb9si1850160pgc.532.2023.06.22.18.38.17; Thu, 22 Jun 2023 18:38:30 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230062AbjFWBdk (ORCPT + 99 others); Thu, 22 Jun 2023 21:33:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229907AbjFWBdi (ORCPT ); Thu, 22 Jun 2023 21:33:38 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EB151FE6 for ; Thu, 22 Jun 2023 18:33:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C7B8D6192B for ; Fri, 23 Jun 2023 01:33:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35BD7C433C0; Fri, 23 Jun 2023 01:33:37 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.96) (envelope-from ) id 1qCVg7-002M6a-32; Thu, 22 Jun 2023 21:33:35 -0400 Message-ID: <20230623013152.037225511@goodmis.org> User-Agent: quilt/0.66 Date: Thu, 22 Jun 2023 21:31:52 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Andrew Morton Subject: [for-linus][PATCH 0/3] tracing: Final updates for 6.4 X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE 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?1769455548327992094?= X-GMAIL-MSGID: =?utf-8?q?1769455548327992094?= Before user events become an ABI, fix the return value of the write operation when tracing is disabled. It should not return an error, but simply report it wrote zero bytes. Just like any other write operation that doesn't write but does not "fail". This also includes test cases for this use case. git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git trace/urgent Head SHA1: 131966049074b8025a8cba0e99d3745311fcef5b sunliming (3): tracing/user_events: Fix incorrect return value for writing operation when events are disabled selftests/user_events: Enable the event before write_fault test in ftrace self-test selftests/user_events: Add test cases when event is disabled ---- kernel/trace/trace_events_user.c | 3 ++- tools/testing/selftests/user_events/ftrace_test.c | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-)