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=-9.8 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=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 96264C83000 for ; Tue, 28 Apr 2020 11:40:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6FA23206A1 for ; Tue, 28 Apr 2020 11:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726859AbgD1Lk4 (ORCPT ); Tue, 28 Apr 2020 07:40:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726426AbgD1Lk4 (ORCPT ); Tue, 28 Apr 2020 07:40:56 -0400 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [IPv6:2a0a:51c0:0:12e:520::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 371C1C03C1A9 for ; Tue, 28 Apr 2020 04:40:56 -0700 (PDT) Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1jTObe-0004QF-TW; Tue, 28 Apr 2020 13:40:54 +0200 From: Florian Westphal To: Cc: Florian Westphal Subject: [PATCH ipsec-next 5/7] xfrm: place xfrm6_local_dontfrag in xfrm.h Date: Tue, 28 Apr 2020 13:40:26 +0200 Message-Id: <20200428114028.20693-6-fw@strlen.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200428114028.20693-1-fw@strlen.de> References: <20200428114028.20693-1-fw@strlen.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org so next patch can re-use it from net/xfrm/xfrm_output.c without causing a linker error when IPV6 is a module. Signed-off-by: Florian Westphal --- include/net/xfrm.h | 16 ++++++++++++++++ net/ipv6/xfrm6_output.c | 21 ++------------------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 4d8be0649464..6b7295fb6e4d 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1988,4 +1988,20 @@ static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x, return 0; } + +#if IS_ENABLED(CONFIG_IPV6) +static inline bool xfrm6_local_dontfrag(const struct sock *sk) +{ + int proto; + + if (!sk || sk->sk_family != AF_INET6) + return false; + + proto = sk->sk_protocol; + if (proto == IPPROTO_UDP || proto == IPPROTO_RAW) + return inet6_sk(sk)->dontfrag; + + return false; +} +#endif #endif /* _NET_XFRM_H */ diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index 23e2b52cfba6..be64f280510c 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -23,23 +23,6 @@ int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, } EXPORT_SYMBOL(xfrm6_find_1stfragopt); -static int xfrm6_local_dontfrag(struct sk_buff *skb) -{ - int proto; - struct sock *sk = skb->sk; - - if (sk) { - if (sk->sk_family != AF_INET6) - return 0; - - proto = sk->sk_protocol; - if (proto == IPPROTO_UDP || proto == IPPROTO_RAW) - return inet6_sk(sk)->dontfrag; - } - - return 0; -} - void xfrm6_local_rxpmtu(struct sk_buff *skb, u32 mtu) { struct flowi6 fl6; @@ -82,7 +65,7 @@ static int xfrm6_tunnel_check_size(struct sk_buff *skb) skb->dev = dst->dev; skb->protocol = htons(ETH_P_IPV6); - if (xfrm6_local_dontfrag(skb)) + if (xfrm6_local_dontfrag(skb->sk)) xfrm6_local_rxpmtu(skb, mtu); else if (skb->sk) xfrm_local_error(skb, mtu); @@ -181,7 +164,7 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) toobig = skb->len > mtu && !skb_is_gso(skb); - if (toobig && xfrm6_local_dontfrag(skb)) { + if (toobig && xfrm6_local_dontfrag(skb->sk)) { xfrm6_local_rxpmtu(skb, mtu); kfree_skb(skb); return -EMSGSIZE; -- 2.26.2