Re: [Patch net] ipv4: fix a potential deadlock in mcast getsockopt() path

2015-11-03 Thread kbuild test robot
Hi Cong, [auto build test WARNING on net/master] [also WARNING on: v4.3 next-20151103] url: https://github.com/0day-ci/linux/commits/Cong-Wang/ipv4-fix-a-potential-deadlock-in-mcast-getsockopt-path/20151104-055733 base: https://github.com/0day-ci/linux Cong-Wang/ipv4-fix-a-potential-deadlo

[Patch net] ipv4: fix a potential deadlock in mcast getsockopt() path

2015-11-03 Thread Cong Wang
Sasha reported the following lockdep warning: Possible unsafe locking scenario: CPU0CPU1 lock(sk_lock-AF_INET); lock(rtnl_mutex); lock(sk_lock-AF_INET); lock(rt