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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 21E6FC28CC1 for ; Sat, 1 Jun 2019 18:24:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0179427775 for ; Sat, 1 Jun 2019 18:24:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726909AbfFASYW (ORCPT ); Sat, 1 Jun 2019 14:24:22 -0400 Received: from mail.us.es ([193.147.175.20]:40074 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726818AbfFASYJ (ORCPT ); Sat, 1 Jun 2019 14:24:09 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 11A34FEFB6 for ; Sat, 1 Jun 2019 20:24:01 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id EF634DA707 for ; Sat, 1 Jun 2019 20:24:00 +0200 (CEST) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id 77CCEFF2D5; Sat, 1 Jun 2019 20:23:58 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id E1150DA716; Sat, 1 Jun 2019 20:23:55 +0200 (CEST) Received: from 192.168.1.97 (192.168.1.97) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/550/antivirus1-rhel7.int); Sat, 01 Jun 2019 20:23:55 +0200 (CEST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/antivirus1-rhel7.int) Received: from salvia.here (unknown [31.4.178.197]) (Authenticated sender: pneira@us.es) by entrada.int (Postfix) with ESMTPA id 7BBB54265A32; Sat, 1 Jun 2019 20:23:55 +0200 (CEST) X-SMTPAUTHUS: auth mail.us.es From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org Subject: [PATCH 11/15] netfilter: nf_tables: prefer skb_ensure_writable Date: Sat, 1 Jun 2019 20:23:36 +0200 Message-Id: <20190601182340.2662-12-pablo@netfilter.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190601182340.2662-1-pablo@netfilter.org> References: <20190601182340.2662-1-pablo@netfilter.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Florian Westphal .. so skb_make_writable can be removed. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nft_exthdr.c | 3 ++- net/netfilter/nft_payload.c | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c index a940c9fd9045..45c8a6c07783 100644 --- a/net/netfilter/nft_exthdr.c +++ b/net/netfilter/nft_exthdr.c @@ -156,7 +156,8 @@ static void nft_exthdr_tcp_set_eval(const struct nft_expr *expr, if (i + optl > tcphdr_len || priv->len + priv->offset > optl) return; - if (!skb_make_writable(pkt->skb, pkt->xt.thoff + i + priv->len)) + if (skb_ensure_writable(pkt->skb, + pkt->xt.thoff + i + priv->len)) return; tcph = nft_tcp_header_pointer(pkt, sizeof(buff), buff, diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c index 54e15de4b79a..1465b7d6d2b0 100644 --- a/net/netfilter/nft_payload.c +++ b/net/netfilter/nft_payload.c @@ -243,7 +243,7 @@ static int nft_payload_l4csum_update(const struct nft_pktinfo *pkt, tsum)); } - if (!skb_make_writable(skb, l4csum_offset + sizeof(sum)) || + if (skb_ensure_writable(skb, l4csum_offset + sizeof(sum)) || skb_store_bits(skb, l4csum_offset, &sum, sizeof(sum)) < 0) return -1; @@ -259,7 +259,7 @@ static int nft_payload_csum_inet(struct sk_buff *skb, const u32 *src, return -1; nft_csum_replace(&sum, fsum, tsum); - if (!skb_make_writable(skb, csum_offset + sizeof(sum)) || + if (skb_ensure_writable(skb, csum_offset + sizeof(sum)) || skb_store_bits(skb, csum_offset, &sum, sizeof(sum)) < 0) return -1; @@ -312,7 +312,7 @@ static void nft_payload_set_eval(const struct nft_expr *expr, goto err; } - if (!skb_make_writable(skb, max(offset + priv->len, 0)) || + if (skb_ensure_writable(skb, max(offset + priv->len, 0)) || skb_store_bits(skb, offset, src, priv->len) < 0) goto err; -- 2.11.0