Re: WARNING: suspicious RCU usage in ovs_flow_tbl_masks_cache_size

[syzbot]

syzbot has bisected this issue to:

commit 9bf24f594c6acf676fb8c229f152c21bfb915ddb
Author: Eelco Chaudron <echaudro@xxxxxxxxxx>
Date:   Fri Jul 31 12:21:34 2020 +0000

    net: openvswitch: make masks cache size configurable

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=110e06dc900000
start commit:   2f631133 net: Pass NULL to skb_network_protocol() when we ..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=130e06dc900000
console output: https://syzkaller.appspot.com/x/log.txt?x=150e06dc900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=91a13b78c7dc258d
dashboard link: https://syzkaller.appspot.com/bug?extid=f612c02823acb02ff9bc
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e8430a900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=123549fc900000

Reported-by: syzbot+f612c02823acb02ff9bc@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 9bf24f594c6a ("net: openvswitch: make masks cache size configurable")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection