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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89381C43217 for ; Mon, 14 Nov 2022 10:41:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235967AbiKNKlR (ORCPT ); Mon, 14 Nov 2022 05:41:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235955AbiKNKlO (ORCPT ); Mon, 14 Nov 2022 05:41:14 -0500 Received: from mail.netfilter.org (mail.netfilter.org [217.70.188.207]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C52E01DDCE; Mon, 14 Nov 2022 02:41:12 -0800 (PST) From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com Subject: [PATCH net-next 1/6] netfilter: nft_payload: use __be16 to store gre version Date: Mon, 14 Nov 2022 11:41:01 +0100 Message-Id: <20221114104106.8719-2-pablo@netfilter.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221114104106.8719-1-pablo@netfilter.org> References: <20221114104106.8719-1-pablo@netfilter.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org GRE_VERSION and GRE_VERSION0 are expressed in network byte order, use __be16. Uncovered by sparse: net/netfilter/nft_payload.c:112:25: warning: incorrect type in assignment (different base types) net/netfilter/nft_payload.c:112:25: expected unsigned int [usertype] version net/netfilter/nft_payload.c:112:25: got restricted __be16 net/netfilter/nft_payload.c:114:22: warning: restricted __be16 degrades to integer Fixes: c247897d7c19 ("netfilter: nft_payload: access GRE payload via inner offset") Reported-by: Jakub Kicinski Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_payload.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c index 9d2ac764a14c..53e64d8aa01f 100644 --- a/net/netfilter/nft_payload.c +++ b/net/netfilter/nft_payload.c @@ -102,8 +102,9 @@ static int __nft_payload_inner_offset(struct nft_pktinfo *pkt) } break; case IPPROTO_GRE: { - u32 offset = sizeof(struct gre_base_hdr), version; + u32 offset = sizeof(struct gre_base_hdr); struct gre_base_hdr *gre, _gre; + __be16 version; gre = skb_header_pointer(pkt->skb, thoff, sizeof(_gre), &_gre); if (!gre) -- 2.30.2