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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 DE666C64E7B for ; Tue, 1 Dec 2020 18:23:19 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 02D1620870 for ; Tue, 1 Dec 2020 18:23:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 02D1620870 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4Clr7l2WwkzDqrN for ; Wed, 2 Dec 2020 05:23:15 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=davemloft.net (client-ip=2620:137:e000::1:9; helo=mail.monkeyblade.net; envelope-from=davem@davemloft.net; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=davemloft.net X-Greylist: delayed 511 seconds by postgrey-1.36 at bilbo; Wed, 02 Dec 2020 05:21:31 AEDT Received: from mail.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Clr5l6dv0zDqlF for ; Wed, 2 Dec 2020 05:21:31 +1100 (AEDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) by mail.monkeyblade.net (Postfix) with ESMTPSA id 852E84CBC9037; Tue, 1 Dec 2020 10:12:45 -0800 (PST) Date: Tue, 01 Dec 2020 10:12:40 -0800 (PST) Message-Id: <20201201.101240.2064813650347834623.davem@davemloft.net> To: tlfalcon@linux.ibm.com Subject: Re: [PATCH net v3 0/2] ibmvnic: Bug fixes for queue descriptor processing From: David Miller In-Reply-To: <1606837931-22676-1-git-send-email-tlfalcon@linux.ibm.com> References: <1606837931-22676-1-git-send-email-tlfalcon@linux.ibm.com> X-Mailer: Mew version 6.8 on Emacs 27.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (mail.monkeyblade.net [0.0.0.0]); Tue, 01 Dec 2020 10:12:46 -0800 (PST) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: cforno12@linux.ibm.com, netdev@vger.kernel.org, ljp@linux.vnet.ibm.com, ricklind@linux.ibm.com, dnbanerg@us.ibm.com, drt@linux.vnet.ibm.com, brking@linux.vnet.ibm.com, kuba@kernel.org, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Thomas Falcon Date: Tue, 1 Dec 2020 09:52:09 -0600 > This series resolves a few issues in the ibmvnic driver's > RX buffer and TX completion processing. The first patch > includes memory barriers to synchronize queue descriptor > reads. The second patch fixes a memory leak that could > occur if the device returns a TX completion with an error > code in the descriptor, in which case the respective socket > buffer and other relevant data structures may not be freed > or updated properly. > > v3: Correct length of Fixes tags, requested by Jakub Kicinski > > v2: Provide more detailed comments explaining specifically what > reads are being ordered, suggested by Michael Ellerman Series applied, thanks!