From patchwork Fri Feb 21 16:51:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Madhuparna Bhowmik X-Patchwork-Id: 1242246 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=LQEmUwEr; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48PHZw3GhLz9sRk for ; Sat, 22 Feb 2020 03:53:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727108AbgBUQxK (ORCPT ); Fri, 21 Feb 2020 11:53:10 -0500 Received: from mail-pf1-f195.google.com ([209.85.210.195]:44229 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726408AbgBUQxJ (ORCPT ); Fri, 21 Feb 2020 11:53:09 -0500 Received: by mail-pf1-f195.google.com with SMTP id y5so1506579pfb.11; Fri, 21 Feb 2020 08:53:09 -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; bh=2hY9rIiih8tmdugozlZsp7q9G6E5pP7+c2/8u13UX8A=; b=LQEmUwErip2nQCUkW0HJOVtYZuDA/PNx8tbnf+qcUjlmDRz4It46DzTFWcf2S4EGIE /s6JUGUihBgs1Lma2v/xZ6eeVNL1+cSzGsqtNINMYWc7Mxj21e9B4kcZA+hwCl6J5CEk MKsmP1qR4BVUS5kAA+5YlTbIQsWLGzwH6rLx6DvfNAhiR+v16g3Fp/e6Cfi2LI03fy0/ OoqPMUwUwKPwlG/qU4zq64qbPkydQ0vzuXEPuQTr1d8B8m66k+GGZaY+0rbMo2Q0iRD7 mJ0C4lIScO2lcxg9gC7Q3kx6CN9qfie17KdVk4QpsOTKxqyCPBr4YaLWAqXEsy6SXCnA sjhQ== 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; bh=2hY9rIiih8tmdugozlZsp7q9G6E5pP7+c2/8u13UX8A=; b=HYE2Gg9xkGxFbq1hWC7iuvkn9cOCxvzspNszRzSoNzgQFl2Ud8i6gL30s3J5dLxUD0 hdbz9OJUHNaF5lj+erH7cT9hxgHtoV6GqmA+qgVhBurE86SWuLDFR10byLvCEbinvRwi jOyZtP0P36Tp8r4eAoqmTWV0J8ilYVLrXUceRMwP64rDOmZhcTMTbbU2l297c/eM5HVn mfkbWDrTCUO1Ssuh3tPGqOjGPfqgLbdc2u2Hucu0iQx8FBw1XW3wIsTF7DID/IszZYSY KZKZp0M4bmZ/j5i2bF/sIj9vXGa3vApAiNi2vLBfCgTBhE/qYKfA9A4YLGv0yO3CVRPR XmxQ== X-Gm-Message-State: APjAAAWxSfgum1qP+t6jPsDcrOOJ+f6/nQKSO46vN1P+efEss2QBweqo mLJWNtvTmyJNKLef+RCO0A== X-Google-Smtp-Source: APXvYqzzkLEq3JUDwv5Bq1ToF86o+d9OVUW1fYL6S8Dqm2aM5Sb5Qk2tn+/yVtkRiCdg/G1uA2ggGA== X-Received: by 2002:aa7:8bda:: with SMTP id s26mr39031993pfd.194.1582303989009; Fri, 21 Feb 2020 08:53:09 -0800 (PST) Received: from madhuparna-HP-Notebook.nitk.ac.in ([2402:3a80:1ee0:fe5e:d03d:769b:c838:c146]) by smtp.gmail.com with ESMTPSA id l13sm3150484pjq.23.2020.02.21.08.52.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Feb 2020 08:53:08 -0800 (PST) From: madhuparnabhowmik10@gmail.com To: jiri@mellanox.com, davem@davemloft.net Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, joel@joelfernandes.org, frextrite@gmail.com, linux-kernel-mentees@lists.linuxfoundation.org, paulmck@kernel.org, Madhuparna Bhowmik Subject: [PATCH] net: core: devlink.c: Use built-in RCU list checking Date: Fri, 21 Feb 2020 22:21:41 +0530 Message-Id: <20200221165141.24630-1-madhuparnabhowmik10@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Madhuparna Bhowmik list_for_each_entry_rcu() has built-in RCU and lock checking. Pass cond argument to list_for_each_entry_rcu() to silence false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled by default. Signed-off-by: Madhuparna Bhowmik Reviewed-by: Jiri Pirko Reported-by: kbuild test robot --- net/core/devlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/core/devlink.c b/net/core/devlink.c index 4c63c9a4c09e..3e8c94155d93 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -2107,7 +2107,8 @@ devlink_dpipe_table_find(struct list_head *dpipe_tables, { struct devlink_dpipe_table *table; - list_for_each_entry_rcu(table, dpipe_tables, list) { + list_for_each_entry_rcu(table, dpipe_tables, list, + lockdep_is_held(&devlink->lock)) { if (!strcmp(table->name, table_name)) return table; }