netdev - Re: [Intel-wired-lan] [PATCH net-next v4 2/6] vxlan: drop sock

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Message-ID: <202506141822.kFKjPah5-lkp@intel.com>
Date: Sat, 14 Jun 2025 18:43:54 +0800
From: kernel test robot <lkp@...el.com>
To: Stanislav Fomichev <stfomichev@...il.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, davem@...emloft.net, edumazet@...gle.com,
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Subject: Re: [Intel-wired-lan] [PATCH net-next v4 2/6] vxlan: drop sock_lock

Hi Stanislav,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Stanislav-Fomichev/geneve-rely-on-rtnl-lock-in-geneve_offload_rx_ports/20250614-043457
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250613203325.1127217-3-stfomichev%40gmail.com
patch subject: [Intel-wired-lan] [PATCH net-next v4 2/6] vxlan: drop sock_lock
config: m68k-atari_defconfig (https://download.01.org/0day-ci/archive/20250614/202506141822.kFKjPah5-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250614/202506141822.kFKjPah5-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506141822.kFKjPah5-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/vxlan/vxlan_core.c: In function '__vxlan_sock_release_prep':
>> drivers/net/vxlan/vxlan_core.c:1488:27: warning: variable 'vn' set but not used [-Wunused-but-set-variable]
    1488 |         struct vxlan_net *vn;
         |                           ^~


vim +/vn +1488 drivers/net/vxlan/vxlan_core.c

d342894c5d2f8c drivers/net/vxlan.c            stephen hemminger    2012-10-01  1485  
544a773a01828e drivers/net/vxlan.c            Hannes Frederic Sowa 2016-04-09  1486  static bool __vxlan_sock_release_prep(struct vxlan_sock *vs)
7c47cedf43a8b3 drivers/net/vxlan.c            Stephen Hemminger    2013-06-17  1487  {
b1be00a6c39fda drivers/net/vxlan.c            Jiri Benc            2015-09-24 @1488  	struct vxlan_net *vn;
012a5729ff933e drivers/net/vxlan.c            Pravin B Shelar      2013-08-19  1489  
dc248376cdc061 drivers/net/vxlan/vxlan_core.c Stanislav Fomichev   2025-06-13  1490  	ASSERT_RTNL();
dc248376cdc061 drivers/net/vxlan/vxlan_core.c Stanislav Fomichev   2025-06-13  1491  
b1be00a6c39fda drivers/net/vxlan.c            Jiri Benc            2015-09-24  1492  	if (!vs)
544a773a01828e drivers/net/vxlan.c            Hannes Frederic Sowa 2016-04-09  1493  		return false;
66af846fe54b78 drivers/net/vxlan.c            Reshetova, Elena     2017-07-04  1494  	if (!refcount_dec_and_test(&vs->refcnt))
544a773a01828e drivers/net/vxlan.c            Hannes Frederic Sowa 2016-04-09  1495  		return false;
d342894c5d2f8c drivers/net/vxlan.c            stephen hemminger    2012-10-01  1496  
b1be00a6c39fda drivers/net/vxlan.c            Jiri Benc            2015-09-24  1497  	vn = net_generic(sock_net(vs->sock->sk), vxlan_net_id);
7c47cedf43a8b3 drivers/net/vxlan.c            Stephen Hemminger    2013-06-17  1498  	hlist_del_rcu(&vs->hlist);
e7b3db5e60e8f4 drivers/net/vxlan.c            Alexander Duyck      2016-06-16  1499  	udp_tunnel_notify_del_rx_port(vs->sock,
b9adcd69bd7b41 drivers/net/vxlan.c            Alexander Duyck      2016-06-16  1500  				      (vs->flags & VXLAN_F_GPE) ?
b9adcd69bd7b41 drivers/net/vxlan.c            Alexander Duyck      2016-06-16  1501  				      UDP_TUNNEL_TYPE_VXLAN_GPE :
e7b3db5e60e8f4 drivers/net/vxlan.c            Alexander Duyck      2016-06-16  1502  				      UDP_TUNNEL_TYPE_VXLAN);
1c51a9159ddefa drivers/net/vxlan.c            Stephen Hemminger    2013-06-17  1503  
544a773a01828e drivers/net/vxlan.c            Hannes Frederic Sowa 2016-04-09  1504  	return true;
d342894c5d2f8c drivers/net/vxlan.c            stephen hemminger    2012-10-01  1505  }
d342894c5d2f8c drivers/net/vxlan.c            stephen hemminger    2012-10-01  1506  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki