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=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 68B96C04E53 for ; Wed, 15 May 2019 11:20:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C9DF20862 for ; Wed, 15 May 2019 11:20:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557919222; bh=VOzyVEwaHQ3QiLL2gypp87BN0AL/CMY/laDhtadXgN8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eH86lVuBzZnW3hU0GRiG/SJn84MBTuiIb0k+Y3LRs/5FUlKB32fKhI25nVsSHH5j9 0hap9untelbWUAOe7LKq01ASys46qKa1NK1bdBksC1PvYx71zbrE7oQe1AetfVbKD/ pLZjvb2PjcYz1ma5VC94p1/3pYwMXvtnv0A67PRQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731076AbfEOLUV (ORCPT ); Wed, 15 May 2019 07:20:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:58094 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730701AbfEOLUU (ORCPT ); Wed, 15 May 2019 07:20:20 -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 0016D206BF; Wed, 15 May 2019 11:20:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557919219; bh=VOzyVEwaHQ3QiLL2gypp87BN0AL/CMY/laDhtadXgN8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z/PdCQB+hw0k4EhuHB4DnLiilUJoiiDYFv/mutTPh/CxxFgC+PZLc5nbaoKlkTG8P Wwpo9sV6MgXaF9iqB/xnll5JG8pjFtQYCopm4hN0P7EHc6yxjhvB1wPagbrSiYtip9 3J2kll7NT+CG70JFLY7R/YZIxuNSpy5c8ewP9QQo= 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 4.14 101/115] dpaa_eth: fix SG frame cleanup Date: Wed, 15 May 2019 12:56:21 +0200 Message-Id: <20190515090706.461075029@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190515090659.123121100@linuxfoundation.org> References: <20190515090659.123121100@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 @@ -1639,7 +1639,7 @@ 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]),