netdev - [Patch net] net_sched: notify filter deletion when deleting a chain

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Message-Id: <20180911212223.11613-1-xiyou.wangcong@gmail.com>
Date:   Tue, 11 Sep 2018 14:22:23 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     netdev@...r.kernel.org
Cc:     Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...lanox.com>
Subject: [Patch net] net_sched: notify filter deletion when deleting a chain

When we delete a chain of filters, we need to notify
user-space we are deleting each filters in this chain
too.

Fixes: 32a4f5ecd738 ("net: sched: introduce chain object to uapi")
Cc: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>
---
 net/sched/cls_api.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 1a67af8a6e8c..0a75cb2e5e7b 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1902,6 +1902,8 @@ static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
 				RTM_NEWCHAIN, false);
 		break;
 	case RTM_DELCHAIN:
+		tfilter_notify_chain(net, skb, block, q, parent, n,
+				     chain, RTM_DELTFILTER);
 		/* Flush the chain first as the user requested chain removal. */
 		tcf_chain_flush(chain);
 		/* In case the chain was successfully deleted, put a reference
-- 
2.14.4