linux-kernel - Re: linux-next: Tree for Sep 17 (netdevice.h: net_has_fallback

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Message-ID: <CAF2d9ji_ueJyMgwqfKxzsEjMaY09DxYboymELCNnEhJQGZDHPQ@mail.gmail.com>
Date:   Thu, 17 Sep 2020 20:52:00 -0700
From:   Mahesh Bandewar (महेश बंडेवार) 
        <maheshb@...gle.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: Re: linux-next: Tree for Sep 17 (netdevice.h: net_has_fallback_tunnels
 when SYSCTL is not set)

On Thu, Sep 17, 2020 at 1:33 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> On 9/17/20 3:23 AM, Stephen Rothwell wrote:
> > Hi all,
> >
> > Changes since 20200916:
> >
>
> I am seeing build errors when CONFIG_SYSCTL is not set:
>
> ld: net/ipv4/ip_tunnel.o: in function `ip_tunnel_init_net':
> ip_tunnel.c:(.text+0x2ea0): undefined reference to `sysctl_fb_tunnels_only_for_init_net'
> ld: net/ipv6/ip6_vti.o: in function `vti6_init_net':
> ip6_vti.c:(.text+0x1b56): undefined reference to `sysctl_fb_tunnels_only_for_init_net'
> ld: net/ipv6/sit.o: in function `sit_init_net':
> sit.c:(.text+0x4568): undefined reference to `sysctl_fb_tunnels_only_for_init_net'
> ld: net/ipv6/ip6_tunnel.o: in function `ip6_tnl_init_net':
> ip6_tunnel.c:(.text+0x27d6): undefined reference to `sysctl_fb_tunnels_only_for_init_net'
> ld: net/ipv6/ip6_gre.o: in function `ip6gre_init_net':
> ip6_gre.c:(.text+0x3a5e): undefined reference to `sysctl_fb_tunnels_only_for_init_net'
>
> due to 316cdaa1158af:
>
> commit 316cdaa1158af17250397054f92bb339fbd8e282
> Author: Mahesh Bandewar <maheshb@...gle.com>
> Date:   Wed Aug 26 09:05:35 2020 -0700
>
>     net: add option to not create fall-back tunnels in root-ns as well
>
>
> This was first reported to netdev@ on Sept. 02 but Mahesh was not cc-ed
> on that report.
>
Thanks Randy for the report.
Probably we shouldn't have removed the !ENBALED(CONFIG_SYSCTL) check.
Let me cook a fix and send it.
>
> --
> ~Randy
> Reported-by: Randy Dunlap <rdunlap@...radead.org>