2018-12-21 08:59:06

by kernel test robot

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Subject: drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:2547: undefined reference to `vxlan_fdb_find_uc'

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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'

vim +2547 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

2532
2533 static void
2534 mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp,
2535 struct mlxsw_sp_switchdev_event_work *
2536 switchdev_work,
2537 struct mlxsw_sp_fid *fid, __be32 vni)
2538 {
2539 struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info;
2540 struct switchdev_notifier_fdb_info *fdb_info;
2541 struct net_device *dev = switchdev_work->dev;
2542 enum mlxsw_sp_l3proto proto;
2543 union mlxsw_sp_l3addr addr;
2544 int err;
2545
2546 fdb_info = &switchdev_work->fdb_info;
> 2547 err = vxlan_fdb_find_uc(dev, fdb_info->addr, vni, &vxlan_fdb_info);
2548 if (err)
2549 return;
2550
2551 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info.remote_ip,
2552 &proto, &addr);
2553
2554 switch (switchdev_work->event) {
2555 case SWITCHDEV_FDB_ADD_TO_DEVICE:
2556 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp,
2557 vxlan_fdb_info.eth_addr,
2558 mlxsw_sp_fid_index(fid),
2559 proto, &addr, true, false);
2560 if (err)
2561 return;
2562 vxlan_fdb_info.offloaded = true;
2563 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev,
2564 &vxlan_fdb_info.info);
2565 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED,
2566 vxlan_fdb_info.eth_addr,
2567 fdb_info->vid, dev, true);
2568 break;
2569 case SWITCHDEV_FDB_DEL_TO_DEVICE:
2570 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp,
2571 vxlan_fdb_info.eth_addr,
2572 mlxsw_sp_fid_index(fid),
2573 proto, &addr, false,
2574 false);
2575 vxlan_fdb_info.offloaded = false;
2576 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev,
2577 &vxlan_fdb_info.info);
2578 break;
2579 }
2580 }
2581

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https://lists.01.org/pipermail/kbuild-all Intel Corporation

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2018-12-21 19:24:02

by Ido Schimmel

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Subject: Re: drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c:2547: undefined reference to `vxlan_fdb_find_uc'

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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!