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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 8EBF9C04E87 for ; Wed, 15 May 2019 11:39:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 572E92053B for ; Wed, 15 May 2019 11:39:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557920351; bh=JDCjz2uejUGz1Wl/+wSooTpOrcmdF/YYT9dMSQKOIF8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wi1Gr1AymqcbdDuL7HjL+zhwAlghUoLcHWToLQx+YUkQd961dgzTKqYxjb1zHtMXn YWNdAx86bNcMnYMVzpkVkjOZRWdMaDsTaDIYqo88+1MDczjd3qTTPu48ksoMfJ9tot AkGtaG6umEbutQivGW3qZTC1cziCyPxzDL8fwXnI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732724AbfEOLa1 (ORCPT ); Wed, 15 May 2019 07:30:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:41990 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732722AbfEOLa0 (ORCPT ); Wed, 15 May 2019 07:30:26 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5D10E20843; Wed, 15 May 2019 11:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557919825; bh=JDCjz2uejUGz1Wl/+wSooTpOrcmdF/YYT9dMSQKOIF8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qJphTH4aw5YX6A6+kZFVtmY2WKcFGDCbVYHTZ73EDeBiSAD5Rl/tNIx4YIVRKDg77 kIKRZ0TZWOX501za6V7OY5HgU+U0TfmgS2jyPf5nz/Bmap58LbglIEZ1aSl1HRkdsr XzYqS4eSck6yKDrFz9QDwedLKZRjvlR89A8LOgJw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Laurentiu Tudor , Madalin Bucur , "David S. Miller" Subject: [PATCH 5.0 107/137] dpaa_eth: fix SG frame cleanup Date: Wed, 15 May 2019 12:56:28 +0200 Message-Id: <20190515090701.337352286@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190515090651.633556783@linuxfoundation.org> References: <20190515090651.633556783@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Laurentiu Tudor [ Upstream commit 17170e6570c082717c142733d9a638bcd20551f8 ] Fix issue with the entry indexing in the sg frame cleanup code being off-by-1. This problem showed up when doing some basic iperf tests and manifested in traffic coming to a halt. Signed-off-by: Laurentiu Tudor Acked-by: Madalin Bucur Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -1648,7 +1648,7 @@ static struct sk_buff *dpaa_cleanup_tx_f qm_sg_entry_get_len(&sgt[0]), dma_dir); /* remaining pages were mapped with skb_frag_dma_map() */ - for (i = 1; i < nr_frags; i++) { + for (i = 1; i <= nr_frags; i++) { WARN_ON(qm_sg_entry_is_ext(&sgt[i])); dma_unmap_page(dev, qm_sg_addr(&sgt[i]),