From patchwork Mon Nov 9 10:51:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rohit Maheshwari X-Patchwork-Id: 1396660 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=chelsio.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CV7BR0dVpz9s1l for ; Mon, 9 Nov 2020 21:53:03 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729445AbgKIKxC (ORCPT ); Mon, 9 Nov 2020 05:53:02 -0500 Received: from stargate.chelsio.com ([12.32.117.8]:21438 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728462AbgKIKxB (ORCPT ); Mon, 9 Nov 2020 05:53:01 -0500 Received: from localhost.localdomain (redhouse.blr.asicdesigners.com [10.193.185.57]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id 0A9AqQMi011444; Mon, 9 Nov 2020 02:52:56 -0800 From: Rohit Maheshwari To: kuba@kernel.org, netdev@vger.kernel.org, davem@davemloft.net Cc: secdev@chelsio.com, Rohit Maheshwari Subject: [net v6 09/12] ch_ktls: don't free skb before sending FIN Date: Mon, 9 Nov 2020 16:21:39 +0530 Message-Id: <20201109105142.15398-10-rohitm@chelsio.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20201109105142.15398-1-rohitm@chelsio.com> References: <20201109105142.15398-1-rohitm@chelsio.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org If its a last packet and fin is set. Make sure FIN is informed to HW before skb gets freed. Fixes: 429765a149f1 ("chcr: handle partial end part of a record") Signed-off-by: Rohit Maheshwari --- .../chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c index bbda71b7f98b..a8062e038ebc 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c @@ -1932,6 +1932,9 @@ static int chcr_ktls_xmit(struct sk_buff *skb, struct net_device *dev) flags); goto out; } + + if (th->fin) + skb_get(skb); } if (unlikely(tls_record_is_start_marker(record))) { @@ -2006,8 +2009,11 @@ static int chcr_ktls_xmit(struct sk_buff *skb, struct net_device *dev) __skb_frag_unref(&record->frags[i]); } /* if any failure, come out from the loop. */ - if (ret) + if (ret) { + if (th->fin) + dev_kfree_skb_any(skb); return NETDEV_TX_OK; + } /* length should never be less than 0 */ WARN_ON(data_len < 0); @@ -2020,8 +2026,10 @@ static int chcr_ktls_xmit(struct sk_buff *skb, struct net_device *dev) /* tcp finish is set, send a separate tcp msg including all the options * as well. */ - if (th->fin) + if (th->fin) { chcr_ktls_write_tcp_options(tx_info, skb, q, tx_info->tx_chan); + dev_kfree_skb_any(skb); + } return NETDEV_TX_OK; out: