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 343D5C33C8C for ; Tue, 7 Jan 2020 17:35:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0891A208C4 for ; Tue, 7 Jan 2020 17:35:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fdk5/inR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728344AbgAGRfX (ORCPT ); Tue, 7 Jan 2020 12:35:23 -0500 Received: from mail-pl1-f193.google.com ([209.85.214.193]:34496 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728321AbgAGRfX (ORCPT ); Tue, 7 Jan 2020 12:35:23 -0500 Received: by mail-pl1-f193.google.com with SMTP id x17so9894pln.1; Tue, 07 Jan 2020 09:35:22 -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=SJ2X7WpLg0FrWfJBUWgKBYL6TqlxNNJeppsfwwD9mMQ=; b=fdk5/inRsxMjh8bZaDJiNZavvsDYMaz1z6Q+wBlSAg5iKy/QmC8eN/MI/tSXtPPCtL wX8rVuAW1NnotCHdQRlBfJY49oe15AO0lrC/dmW901u//sL4p+jkOL741iC6+IjfcHxA QlJXk3Kim3KbspQspAEmnxJOLp3/EL8kfzT1VAya63ai58/jnoRIfgbBXO2AnAUx6sGz mNitcp2SzJA0gvOERxLUAOzVQPfx20B0TQrWRf1uiPmtJNvb75XLSoJICJFoq/Heve8N PG4S70cGp2UxpdEDlTWbEwC+tLCRVIJt23Pwv5P85RXhlbbhtHRwsxMUA9Xroft2Tjwe OYsQ== 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=SJ2X7WpLg0FrWfJBUWgKBYL6TqlxNNJeppsfwwD9mMQ=; b=UGhR5rg14BjtSdWct59XNN4cP8MATXStZr6sAByFy5ZTk/tYrBt08EhVPt9ubOjxzh wzxML/BK4jPLz+oI+DQVvyRDtu0UvBrLSyijBa6ERkediNaQtYsfIN3ViZ9PsubVbrEB l9KDTKeG/8/B3HzxcGpvJ962Vd8gW75rXmeceETsfRgCczoL3muFTzhdSoXsKqbobIhf Lho3X6/jDLuzOvYflNlZYk8QYddHscMuC4saLZpCxUQf3PeRuzgCp0C3oypPaAJvUhVw oadBWuKz06An2GnTBLRFj+CGFQF+EE+SRYqAnYmG9+l8xoiAvEmd2e5gKVPf4PmMjV6G COCQ== X-Gm-Message-State: APjAAAXTrCcL5vcCFTRyWMLLNnGnoly1G834iICIJWfU3Kvm1crfhKnB QUdjCuWpfH7bxSBr5ezet+I= X-Google-Smtp-Source: APXvYqxIicyrXMpE6DtoTVEUGxByj1tKZgLrrAE+L6a1P/+ajmE1S+RY0vKL6wMwNYQj7M3UH/UUqA== X-Received: by 2002:a17:90a:fb45:: with SMTP id iq5mr884671pjb.93.1578418522122; Tue, 07 Jan 2020 09:35:22 -0800 (PST) Received: from madhuparna-HP-Notebook.nitk.ac.in ([2402:3a80:1ee3:fd53:981d:523f:a647:bef8]) by smtp.gmail.com with ESMTPSA id d3sm130091pfn.113.2020.01.07.09.35.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 09:35:21 -0800 (PST) From: madhuparnabhowmik04@gmail.com To: dennis.dalessandro@intel.com, mike.marciniszyn@intel.com, dledford@redhat.com, paulmck@kernel.org Cc: rcu@vger.kernel.org, joel@joelfernandes.org, frextrite@gmail.com, linux-kernel-mentees@lists.linuxfoundation.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Madhuparna Bhowmik Subject: [PATCH 1/3] infiniband: hw: hfi1: verbs.c: Use built-in RCU list checking Date: Tue, 7 Jan 2020 23:05:08 +0530 Message-Id: <20200107173510.20320-1-madhuparnabhowmik04@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@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. Signed-off-by: Madhuparna Bhowmik --- drivers/infiniband/hw/hfi1/verbs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 089e201d7550..cab2ff185240 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -515,7 +515,8 @@ static inline void hfi1_handle_packet(struct hfi1_packet *packet, opa_get_lid(packet->dlid, 9B)); if (!mcast) goto drop; - list_for_each_entry_rcu(p, &mcast->qp_list, list) { + list_for_each_entry_rcu(p, &mcast->qp_list, list + lock_is_held(&(ibp->rvp.lock).dep_map)) { packet->qp = p->qp; if (hfi1_do_pkey_check(packet)) goto drop; -- 2.17.1