From: David Miller <davem@davemloft.net> Date: 2020-08-24 13:09:30
From: xiangxia.m.yue@gmail.com
Date: Mon, 24 Aug 2020 15:36:01 +0800
To avoid a bug when deleting flows in the future, add
BUG_ON in flush flows function.
BUG_ON() is too severe, I think WARN_ON() or similar are sufficient
because the kernel can try to continue operating if this condition is
detected.
And you can force the values to zero in such a situation.
Thank you.