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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 E2422C2D0C6 for ; Wed, 11 Dec 2019 21:51:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1D5921556 for ; Wed, 11 Dec 2019 21:51:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726592AbfLKVvK (ORCPT ); Wed, 11 Dec 2019 16:51:10 -0500 Received: from correo.us.es ([193.147.175.20]:58348 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726313AbfLKVvK (ORCPT ); Wed, 11 Dec 2019 16:51:10 -0500 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 8E5971F0D05 for ; Wed, 11 Dec 2019 22:51:06 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 7C528DA70A for ; Wed, 11 Dec 2019 22:51:06 +0100 (CET) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id 72093DA703; Wed, 11 Dec 2019 22:51:06 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 60FAFDA705; Wed, 11 Dec 2019 22:51:04 +0100 (CET) Received: from 192.168.1.97 (192.168.1.97) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/550/antivirus1-rhel7.int); Wed, 11 Dec 2019 22:51:04 +0100 (CET) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/antivirus1-rhel7.int) Received: from us.es (sys.soleta.eu [212.170.55.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: 1984lsi) by entrada.int (Postfix) with ESMTPSA id 3C32C4265A5A; Wed, 11 Dec 2019 22:51:04 +0100 (CET) Date: Wed, 11 Dec 2019 22:51:04 +0100 X-SMTPAUTHUS: auth mail.us.es From: Pablo Neira Ayuso To: Xin Long Cc: network dev , netfilter-devel@vger.kernel.org, davem@davemloft.net Subject: Re: [PATCH nf-next 1/7] netfilter: nft_tunnel: parse ERSPAN_VERSION attr as u8 Message-ID: <20191211215104.qnvifdmlg55ox45b@salvia> References: <981718e8e2ca5cd34d1153f54eae06ab2f087c07.1575779993.git.lucien.xin@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <981718e8e2ca5cd34d1153f54eae06ab2f087c07.1575779993.git.lucien.xin@gmail.com> User-Agent: NeoMutt/20170113 (1.7.2) X-Virus-Scanned: ClamAV using ClamSMTP Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, On Sun, Dec 08, 2019 at 12:41:31PM +0800, Xin Long wrote: > To keep consistent with ipgre_policy, it's better to parse > ERSPAN_VERSION attr as u8, as it does in act_tunnel_key, > cls_flower and ip_tunnel_core. > > Signed-off-by: Xin Long > --- > net/netfilter/nft_tunnel.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/net/netfilter/nft_tunnel.c b/net/netfilter/nft_tunnel.c > index 3d4c2ae..f76cd7d 100644 > --- a/net/netfilter/nft_tunnel.c > +++ b/net/netfilter/nft_tunnel.c > @@ -248,8 +248,9 @@ static int nft_tunnel_obj_vxlan_init(const struct nlattr *attr, > } > > static const struct nla_policy nft_tunnel_opts_erspan_policy[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1] = { > + [NFTA_TUNNEL_KEY_ERSPAN_VERSION] = { .type = NLA_U8 }, > [NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX] = { .type = NLA_U32 }, > - [NFTA_TUNNEL_KEY_ERSPAN_V2_DIR] = { .type = NLA_U8 }, > + [NFTA_TUNNEL_KEY_ERSPAN_V2_DIR] = { .type = NLA_U8 }, > [NFTA_TUNNEL_KEY_ERSPAN_V2_HWID] = { .type = NLA_U8 }, > }; > > @@ -266,7 +267,7 @@ static int nft_tunnel_obj_erspan_init(const struct nlattr *attr, > if (err < 0) > return err; > > - version = ntohl(nla_get_be32(tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION])); > + version = nla_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]); I think NFTA_TUNNEL_KEY_ERSPAN_VERSION as 32-bit is just fine. Netlink will be adding the padding anyway for u8. I would suggest you leave this as is. Thanks.