12:42 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master
head: 3354c27699652b271b78c85f275b818e6b9843e6
commit: 04231e52d3557475231abe8a8fa1be0330826ed6 [2/3] ipvs: queue delayed work to expire
no destination connections if expire_nodest_conn=1
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago
config: mips-randconfig-s032-20200715 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-49-g707c5017-dirty
git checkout 04231e52d3557475231abe8a8fa1be0330826ed6
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> net/netfilter/ipvs/ip_vs_conn.c:1394:6: sparse: sparse: context
imbalance in 'ip_vs_expire_nodest_conn_flush' - wrong count at exit
#
https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git/commit/...
git remote add nf-next https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git
git remote update nf-next
git checkout 04231e52d3557475231abe8a8fa1be0330826ed6
vim +/ip_vs_expire_nodest_conn_flush +1394 net/netfilter/ipvs/ip_vs_conn.c
04231e52d355747 Andrew Sy Kim 2020-07-08 1392
04231e52d355747 Andrew Sy Kim 2020-07-08 1393 #ifdef CONFIG_SYSCTL
04231e52d355747 Andrew Sy Kim 2020-07-08 @1394 void ip_vs_expire_nodest_conn_flush(struct
netns_ipvs *ipvs)
04231e52d355747 Andrew Sy Kim 2020-07-08 1395 {
04231e52d355747 Andrew Sy Kim 2020-07-08 1396 int idx;
04231e52d355747 Andrew Sy Kim 2020-07-08 1397 struct ip_vs_conn *cp, *cp_c;
04231e52d355747 Andrew Sy Kim 2020-07-08 1398 struct ip_vs_dest *dest;
04231e52d355747 Andrew Sy Kim 2020-07-08 1399
04231e52d355747 Andrew Sy Kim 2020-07-08 1400 rcu_read_lock();
04231e52d355747 Andrew Sy Kim 2020-07-08 1401 for (idx = 0; idx <
ip_vs_conn_tab_size; idx++) {
04231e52d355747 Andrew Sy Kim 2020-07-08 1402 hlist_for_each_entry_rcu(cp,
&ip_vs_conn_tab[idx], c_list) {
04231e52d355747 Andrew Sy Kim 2020-07-08 1403 if (cp->ipvs != ipvs)
04231e52d355747 Andrew Sy Kim 2020-07-08 1404 continue;
04231e52d355747 Andrew Sy Kim 2020-07-08 1405
04231e52d355747 Andrew Sy Kim 2020-07-08 1406 dest = cp->dest;
04231e52d355747 Andrew Sy Kim 2020-07-08 1407 if (!dest || (dest->flags &
IP_VS_DEST_F_AVAILABLE))
04231e52d355747 Andrew Sy Kim 2020-07-08 1408 continue;
04231e52d355747 Andrew Sy Kim 2020-07-08 1409
04231e52d355747 Andrew Sy Kim 2020-07-08 1410 if
(atomic_read(&cp->n_control))
04231e52d355747 Andrew Sy Kim 2020-07-08 1411 continue;
04231e52d355747 Andrew Sy Kim 2020-07-08 1412
04231e52d355747 Andrew Sy Kim 2020-07-08 1413 cp_c = cp->control;
04231e52d355747 Andrew Sy Kim 2020-07-08 1414 IP_VS_DBG(4, "del
connection\n");
04231e52d355747 Andrew Sy Kim 2020-07-08 1415 ip_vs_conn_del(cp);
04231e52d355747 Andrew Sy Kim 2020-07-08 1416 if (cp_c &&
!atomic_read(&cp_c->n_control)) {
04231e52d355747 Andrew Sy Kim 2020-07-08 1417 IP_VS_DBG(4, "del controlling
connection\n");
04231e52d355747 Andrew Sy Kim 2020-07-08 1418 ip_vs_conn_del(cp_c);
04231e52d355747 Andrew Sy Kim 2020-07-08 1419 }
04231e52d355747 Andrew Sy Kim 2020-07-08 1420 }
04231e52d355747 Andrew Sy Kim 2020-07-08 1421 cond_resched_rcu();
04231e52d355747 Andrew Sy Kim 2020-07-08 1422
04231e52d355747 Andrew Sy Kim 2020-07-08 1423 /* netns clean up started, abort delayed
work */
04231e52d355747 Andrew Sy Kim 2020-07-08 1424 if (!ipvs->enable)
04231e52d355747 Andrew Sy Kim 2020-07-08 1425 return;
04231e52d355747 Andrew Sy Kim 2020-07-08 1426 }
04231e52d355747 Andrew Sy Kim 2020-07-08 1427 rcu_read_unlock();
04231e52d355747 Andrew Sy Kim 2020-07-08 1428 }
04231e52d355747 Andrew Sy Kim 2020-07-08 1429 #endif
04231e52d355747 Andrew Sy Kim 2020-07-08 1430
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org