From patchwork Fri May 14 18:39:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matteo Croce X-Patchwork-Id: 439334 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,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 7C21FC433ED for ; Fri, 14 May 2021 18:41:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C1F261444 for ; Fri, 14 May 2021 18:41:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233825AbhENSm3 (ORCPT ); Fri, 14 May 2021 14:42:29 -0400 Received: from mail-ej1-f46.google.com ([209.85.218.46]:36488 "EHLO mail-ej1-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230142AbhENSm2 (ORCPT ); Fri, 14 May 2021 14:42:28 -0400 Received: by mail-ej1-f46.google.com with SMTP id c20so127971ejm.3; Fri, 14 May 2021 11:41:15 -0700 (PDT) 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=gPu3JhIKExQczwKARwj2go99YLQAcb+tX8q8d0+CLrs=; b=IRhnxiNFs4rhtOcDPhilDB/M7RDi1YjJ7fRyPHpVEV0TDpsuwQud3UAKsOx8MJYmPT pBInW92wCHW6xfynwJR6Om+PYyaTgZC2m0WsvekjVOMamctBCOvsKDMuxqN8Ln2nzaCN qhEu6FbfKTt1orfjEOx/LHRz6zITZm1/jYlRXhLgEVf6klZLmTmOjrkcP+3Tw5CQswRD BZWrhqSegQE+J3M4MLPsZOMlLd9z+0+NgKeH7pnM+KlGxJMgKiZTgcZBPOSnviCoYWbx SHq8tU/f8k1XwjQ0klzouPCKPabsPL4LPXVDJx4vXNSnRyCTa/F0SU6VfmO900/VXFM7 2CPQ== X-Gm-Message-State: AOAM5331ZeMcroTGnlUHqukhEVO75QKvKYZxoOWEsCvBA6n0Bc5XXaSH fFUoP8o4A/P9ts4zpqoXiY/vC4rP82i3bg0y X-Google-Smtp-Source: ABdhPJw/bzz+edLEyA47WDc1rrEAXftvdXlwn8/p6LzoZoO4/o+QryD11sVkSt7P+ExsEP3oTa1Mxg== X-Received: by 2002:a17:906:6a93:: with SMTP id p19mr50865392ejr.319.1621017675225; Fri, 14 May 2021 11:41:15 -0700 (PDT) Received: from turbo.teknoraver.net (net-5-94-253-60.cust.vodafonedsl.it. [5.94.253.60]) by smtp.gmail.com with ESMTPSA id dj17sm5081505edb.7.2021.05.14.11.41.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 May 2021 11:41:14 -0700 (PDT) From: Matteo Croce To: netdev@vger.kernel.org, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-stm32@st-md-mailman.stormreply.com, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org, Jesse Brandeburg , Tony Nguyen , "David S. Miller" , Jakub Kicinski , Giuseppe Cavallaro , Alexandre Torgue , "Michael S. Tsirkin" , Jason Wang Subject: [PATCH net-next 3/3] vhost_net: use XDP helpers Date: Fri, 14 May 2021 20:39:54 +0200 Message-Id: <20210514183954.7129-4-mcroce@linux.microsoft.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210514183954.7129-1-mcroce@linux.microsoft.com> References: <20210514183954.7129-1-mcroce@linux.microsoft.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Matteo Croce Make use of the xdp_{init,prepare}_buff() helpers instead of an open-coded version. Also, the field xdp->rxq was never set, so pass NULL to xdp_init_buff() to clear it. Signed-off-by: Matteo Croce --- drivers/vhost/net.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index df82b124170e..6414bd5741b8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -744,11 +744,9 @@ static int vhost_net_build_xdp(struct vhost_net_virtqueue *nvq, if (copied != len) return -EFAULT; - xdp->data_hard_start = buf; - xdp->data = buf + pad; - xdp->data_end = xdp->data + len; + xdp_init_buff(xdp, buflen, NULL); + xdp_prepare_buff(xdp, buf, pad, len, true); hdr->buflen = buflen; - xdp->frame_sz = buflen; --net->refcnt_bias; alloc_frag->offset += buflen;