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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 9EDDBC2BA19 for ; Wed, 15 Apr 2020 17:57:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6F776208E0 for ; Wed, 15 Apr 2020 17:57:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586973452; bh=1R7gXM8eRxN4PT3jYnhPCVqSze7aESde1MRtGmvXYuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Wl072qNBrWGjcTKGEe9IIaUL3fT/G46pCDjPAIeyck4yBFvZDy0d09+BJixhs62U/ ckPCfjrgq1f31kdGSGVAmzhqKN8R1u6iVhUup+zqqx4NzkuhKa4QmmNFAHq479JeZf fFb4JHaHsPdSPqp0KwY5uxxuQwNBOTNUITA/yHtw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2411538AbgDOR5V (ORCPT ); Wed, 15 Apr 2020 13:57:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:48948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1416562AbgDOR4R (ORCPT ); Wed, 15 Apr 2020 13:56:17 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 80B592084D; Wed, 15 Apr 2020 17:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586973376; bh=1R7gXM8eRxN4PT3jYnhPCVqSze7aESde1MRtGmvXYuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vk3ibdNqjpc4+xBWezbd9gGnG57y0EVDjOuOSLajFOG0a8UaE2DMdhMGKEjVKNMbn 4BLS/Mf0eJPg4wYAWm62ANZZolr7BaAKFNkhouvtyJr0rWpSorSpWWvkmZKOujPpzQ /mTN6bbmMIuP4mS78Yf/Y8wlTu9Q6pcUTvv1+Crs= From: paulmck@kernel.org To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 1/6] rcu: Add KCSAN stubs to update.c Date: Wed, 15 Apr 2020 10:56:09 -0700 Message-Id: <20200415175614.10837-1-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200415175543.GA10416@paulmck-ThinkPad-P72> References: <20200415175543.GA10416@paulmck-ThinkPad-P72> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" This commit adds stubs for KCSAN's data_race(), ASSERT_EXCLUSIVE_WRITER(), and ASSERT_EXCLUSIVE_ACCESS() macros to allow code using these macros to move ahead. Signed-off-by: Paul E. McKenney --- kernel/rcu/update.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index 28a8bdc..74a698a 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -51,6 +51,19 @@ #endif #define MODULE_PARAM_PREFIX "rcupdate." +#ifndef data_race +#define data_race(expr) \ + ({ \ + expr; \ + }) +#endif +#ifndef ASSERT_EXCLUSIVE_WRITER +#define ASSERT_EXCLUSIVE_WRITER(var) do { } while (0) +#endif +#ifndef ASSERT_EXCLUSIVE_ACCESS +#define ASSERT_EXCLUSIVE_ACCESS(var) do { } while (0) +#endif + #ifndef CONFIG_TINY_RCU module_param(rcu_expedited, int, 0); module_param(rcu_normal, int, 0); -- 2.9.5