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=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 B70EAC282DD for ; Tue, 7 Jan 2020 19:30:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F8DB206DB for ; Tue, 7 Jan 2020 19:30:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="reG5fXVi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728781AbgAGTax (ORCPT ); Tue, 7 Jan 2020 14:30:53 -0500 Received: from mail-pj1-f67.google.com ([209.85.216.67]:51318 "EHLO mail-pj1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728307AbgAGTaw (ORCPT ); Tue, 7 Jan 2020 14:30:52 -0500 Received: by mail-pj1-f67.google.com with SMTP id j11so6449pjs.1; Tue, 07 Jan 2020 11:30:52 -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=ydzbsY0i6MRr67P6Q3t/fs+mF8B+uFgZNEmwYDqmlq4=; b=reG5fXVibdr1/s8/SEGRIYgTyVBxOrtDm7KwQso8puDhJZxksCbfim8QllpxbDifoQ mS3J0KTvMA6FXU4JkXC8Pysm+hTpffxlUDJgxr+ftSOjddhSdlLVP8IHRctJN5TpHJgF QDMhdwBxf8ghJ/wiA/r/okq4FOGA3eeT0GS9ddHnDva/+js7icy2YYSbidm70QuFZExR Tgs9j9vXOGz0Rqwd1fwr0l9Kc6Qazv4qoxowPYg4ob0QYkQ2iVBnq7ZU4Q7BNR61m5eC v9+kyXWuSjA8jZuAJqmT4AFBQdajI68kaPZQv7cFNLjTcJV9zLDBVDo5AQajmeBjsDRn eI6Q== 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=ydzbsY0i6MRr67P6Q3t/fs+mF8B+uFgZNEmwYDqmlq4=; b=Q1Mm6Eec6k3r9iqFezqJ8asJj4iTH0w89KpQPohGKBeA59nibXDU3IXGFpCTqtG/IJ XRSPmZ5A344tsGHTb2mWMhe8665jJzIwK8wsgjEoqml4g3cvUJyFQAytqFjXNq7s0FsL EOh53yvYYRCuY+6mZmgumqVjUYRDR5KOazLvFz2APLXfhSWF7jqOYoYogFuEDA2P7+/j hboz+CA3b7YM+4bSb0q7eLJYChRjjhjyAxJg1QJtcRgIBrXCOCmWASU2sUpcxs6AqC+w v7lqfBFjrDSm4UxDLL2GKqrjVdxM/qU22Z+5fxG+s+cHBWYso1SZ4sPvMVUFINap/7eO Jv/A== X-Gm-Message-State: APjAAAWdPWHahM0B/ffT8EfSEDk3F+3j6lcEWRSut+9cx3zK4MBgGgCi +9cqM0am1uSibL41Zm3DMvg= X-Google-Smtp-Source: APXvYqyT8DiyCXnAXgGXM1MjaexNfnV7NDyjZ9hYDYGqwl0OuJyFXQ/FDcVHv+tz7Sd8H+/yMOK1tQ== X-Received: by 2002:a17:902:c509:: with SMTP id o9mr1305510plx.112.1578425451687; Tue, 07 Jan 2020 11:30:51 -0800 (PST) Received: from madhuparna-HP-Notebook.nitk.ac.in ([2402:3a80:1ee3:fd53:8500:6ea8:4ef2:c9be]) by smtp.gmail.com with ESMTPSA id j9sm357775pff.6.2020.01.07.11.30.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 11:30:51 -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 2/3] infiniband: hw: qib: qib_verbs: Use built-in RCU list checking Date: Wed, 8 Jan 2020 01:00:39 +0530 Message-Id: <20200107193039.22836-1-madhuparnabhowmik04@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Madhuparna Bhowmik Use built-in RCU and lock checking for list_for_each_entry_rcu by passing cond argument to it. Signed-off-by: Madhuparna Bhowmik --- drivers/infiniband/hw/qib/qib_verbs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 33778d451b82..845ba888734e 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -329,7 +329,8 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen) if (mcast == NULL) goto drop; this_cpu_inc(ibp->pmastats->n_multicast_rcv); - 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)) qib_qp_rcv(rcd, hdr, 1, data, tlen, p->qp); /* * Notify rvt_multicast_detach() if it is waiting for us -- 2.17.1