linux-kernel - Re: [PATCH] ip_tunnel: make ip6tunnel

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Date:	Fri, 1 Jan 2016 18:58:10 -0800
From:	Pravin Shelar <pshelar@...ira.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"David S. Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ip_tunnel: make ip6tunnel_xmit definition conditional

On Fri, Jan 1, 2016 at 5:48 AM, Arnd Bergmann <arnd@...db.de> wrote:
> From 433df301cf49624871346fa63f3fc65033caeda3 Mon Sep 17 00:00:00 2001
> From: Arnd Bergmann <arnd@...db.de>
> Date: Fri, 1 Jan 2016 13:18:48 +0100
> Subject: [PATCH] net: make ip6tunnel_xmit definition conditional
>
> Moving the caller of iptunnel_xmit_stats causes a build error in
> randconfig builds that disable CONFIG_INET:
>
> In file included from ../net/xfrm/xfrm_input.c:17:0:
> ../include/net/ip6_tunnel.h: In function 'ip6tunnel_xmit':
> ../include/net/ip6_tunnel.h:93:2: error: implicit declaration of function 'iptunnel_xmit_stats' [-Werror=implicit-function-declaration]
>   iptunnel_xmit_stats(dev, pkt_len);
>
> The reason is that the iptunnel_xmit_stats definition is hidden
> inside #ifdef CONFIG_INET but the caller is not. We can change
> one or the other to fix it, and this patch adds a second #ifdef
> around ip6tunnel_xmit() to avoid seeing the invalid call.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 039f50629b7f ("ip_tunnel: Move stats update to iptunnel_xmit()")

Thanks for the fix.
Acked-by: Pravin B Shelar <pshelar@...ira.com>
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