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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 67184C433DB for ; Fri, 12 Mar 2021 05:29:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 1E39361601 for ; Fri, 12 Mar 2021 05:29:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E39361601 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43510 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lKaMN-0001d0-5W for qemu-devel@archiver.kernel.org; Fri, 12 Mar 2021 00:29:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51598) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKaIb-0004uS-07 for qemu-devel@nongnu.org; Fri, 12 Mar 2021 00:25:21 -0500 Received: from mga05.intel.com ([192.55.52.43]:4921) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKaIZ-0006dL-CA for qemu-devel@nongnu.org; Fri, 12 Mar 2021 00:25:20 -0500 IronPort-SDR: dFLT2eGXoJSqPnjuUmbGTXWasT5vk3aV8vC/n7TudVAKuh0Xz83Z1Tm24cgiDCXIrJbMQvvJUT uBZv3LVgu+CQ== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="273826906" X-IronPort-AV: E=Sophos;i="5.81,242,1610438400"; d="scan'208";a="273826906" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 21:25:18 -0800 IronPort-SDR: irBvidiZDUHTNN9KE/BIk8QBfr1NqMFQPU1CuJurbqGvCew+s7nnO3z2JVLa6fqlpYQtdvpGaF N1xZzpTMD0Wg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,242,1610438400"; d="scan'208";a="600481915" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.192.103]) by fmsmga006.fm.intel.com with ESMTP; 11 Mar 2021 21:25:15 -0800 From: leirao To: chen.zhang@intel.com, lizhijian@cn.fujitsu.com, jasowang@redhat.com, quintela@redhat.com, dgilbert@redhat.com, pbonzini@redhat.com, lukasstraub2@web.de Subject: [PATCH v2 03/10] Optimize the function of filter_send Date: Fri, 12 Mar 2021 13:02:56 +0800 Message-Id: <1615525383-59071-4-git-send-email-lei.rao@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1615525383-59071-1-git-send-email-lei.rao@intel.com> References: <1615525383-59071-1-git-send-email-lei.rao@intel.com> Received-SPF: pass client-ip=192.55.52.43; envelope-from=lei.rao@intel.com; helo=mga05.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Rao, Lei" , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Rao, Lei" The iov_size has been calculated in filter_send(). we can directly return the size.In this way, this is no need to repeat calculations in filter_redirector_receive_iov(); Signed-off-by: Lei Rao --- net/filter-mirror.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index f8e6500..f20240c 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -88,7 +88,7 @@ static int filter_send(MirrorState *s, goto err; } - return 0; + return size; err: return ret < 0 ? ret : -EIO; @@ -159,7 +159,7 @@ static ssize_t filter_mirror_receive_iov(NetFilterState *nf, int ret; ret = filter_send(s, iov, iovcnt); - if (ret) { + if (ret < 0) { error_report("filter mirror send failed(%s)", strerror(-ret)); } @@ -182,10 +182,10 @@ static ssize_t filter_redirector_receive_iov(NetFilterState *nf, if (qemu_chr_fe_backend_connected(&s->chr_out)) { ret = filter_send(s, iov, iovcnt); - if (ret) { + if (ret < 0) { error_report("filter redirector send failed(%s)", strerror(-ret)); } - return iov_size(iov, iovcnt); + return ret; } else { return 0; } -- 1.8.3.1