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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 76D81C43603 for ; Mon, 16 Dec 2019 13:14:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 46D7320717 for ; Mon, 16 Dec 2019 13:14:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KRnwFo6B" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727869AbfLPNO2 (ORCPT ); Mon, 16 Dec 2019 08:14:28 -0500 Received: from mail-wm1-f66.google.com ([209.85.128.66]:54353 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727847AbfLPNO1 (ORCPT ); Mon, 16 Dec 2019 08:14:27 -0500 Received: by mail-wm1-f66.google.com with SMTP id b19so6666906wmj.4 for ; Mon, 16 Dec 2019 05:14:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=YCtc4aC4feTs8GDi5Ak3Mqtw6YBY2okUGhT9QJAgeDo=; b=KRnwFo6Bpxb3OwOpnqR1bobnvU1EJlPqDXBYED0wOYU9sCr2oZ7MDO+9WIS7/evhWW W2HOVN0BfzT4KcmZscQIq+VropJDKKkdKd+CFMaXExih9uEIb+zzKByaeVleZUyYjo2C ZcaaOLA9MvPteZXFOZmImoi0jGyP0HtG+yzX5V+T41sv5eK9J8VL/xfCa+QWSkUQpXL/ 4tk5esBXR3XN8ikPOC9FGpOSA0PJ94KEWcO8ooseecXSzDwMp3r5tcyMUeizPZ//0yWd iCmG3pUPYGyEBhRO6RLJLSIS1ycA9pCX5bE6tPUx8bEwzCOTzb3U87M2CoRF4Kyll+1W nIsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=YCtc4aC4feTs8GDi5Ak3Mqtw6YBY2okUGhT9QJAgeDo=; b=QJMGpIBeKE/L8C/35G7Sx+Yq/NRLXoUwR24xdRx0e9ucp30BSczlW3zy3wI9rWSCxk PAma9VcDNr4UPeVA+mcDWHUZ4x2dK0RLoP309yRhU4q26B2MlhioTi6R+om0PoeE9ngr eOIUKgU0RxWfYyWjMU80Hgsb6zhuwTOJ8o/XXxF1XlhJPtfqGxhK1s42raN5rd2eUbFH 9IfVb6UWcArTQ0oxlynvSbBo4kjAznvh74Y0JIIwVh3nrMjQhA2jOXwhDZ7L6Zn40USH glB8yg5NuCQN7CkFCgHgLaqWPtJw9dqi6flpRYfmqn5YTEu1yt3ELm0p8fFuMP9enaCj 5htQ== X-Gm-Message-State: APjAAAXA5gXwtErLUMyZPrlxyHj11ELJ3jZd5eaMmYxr+ghnenS9JT7T pQ/cDhXSyj6BGvTF/7aspw== X-Google-Smtp-Source: APXvYqyYdmkZfbhXjiqoJwbM3J1JjBL5wUKkU/a2TDTuhwIKBy04mKdnlZkMwkTujntAhgNRiQOGPg== X-Received: by 2002:a1c:488a:: with SMTP id v132mr29041455wma.153.1576502065668; Mon, 16 Dec 2019 05:14:25 -0800 (PST) Received: from ninjahub.lan (host-92-15-174-53.as43234.net. [92.15.174.53]) by smtp.googlemail.com with ESMTPSA id n67sm21554029wmb.8.2019.12.16.05.14.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Dec 2019 05:14:25 -0800 (PST) From: Jules Irenge To: bokun.feng@gmail.com Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, Jules Irenge Subject: [PATCH v2] kernel: events: add releases() annotation Date: Mon, 16 Dec 2019 13:14:15 +0000 Message-Id: <20191216131415.23508-1-jbi.octave@gmail.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add releases() annotation to remove issue detected by sparse tool. warning: context imbalance in perf_output_end() - unexpected unlock Signed-off-by: Jules Irenge --- Change Added RCU as an argument in the releases() annotation kernel/events/ring_buffer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 7ffd5c763f93..3381e70fb0f5 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -295,6 +295,7 @@ unsigned int perf_output_skip(struct perf_output_handle *handle, } void perf_output_end(struct perf_output_handle *handle) + __releases(RCU) { perf_output_put_handle(handle); rcu_read_unlock(); -- 2.23.0