linux-kernel - Re: drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:2547: undefined reference to `vxlan_fdb_find

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Message-ID: <20181221103940.GA14915@splinter>
Date:   Fri, 21 Dec 2018 10:39:42 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     kbuild test robot <lkp@...el.com>
CC:     "kbuild-all@...org" <kbuild-all@...org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Petr Machata <petrm@...lanox.com>
Subject: Re: drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:2547:
 undefined reference to `vxlan_fdb_find_uc'

On Fri, Dec 21, 2018 at 02:13:03PM +0800, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   9097a058d49e049925d8da72db07fffcee24efa0
> commit: 1231e04f5bba47f87d0b690a2d58c771a59f93aa mlxsw: spectrum_switchdev: Add support for VxLAN encapsulation
> date:   9 weeks ago
> config: x86_64-randconfig-s2-12211040 (attached as .config)
> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
> reproduce:
>         git checkout 1231e04f5bba47f87d0b690a2d58c771a59f93aa
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> All errors (new ones prefixed by >>):
> 
>    drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.o: In function `mlxsw_sp_switchdev_bridge_vxlan_fdb_event':
> >> drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:2547: undefined reference to `vxlan_fdb_find_uc'

Problem is CONFIG_VXLAN=m and CONFIG_MLXSW_SPECTRUM=y

I'll send a fix.

Thanks!