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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Alexander Aring <aring@mojatatu.com>,
        Yotam Gigi <yotam.gi@gmail.com>,
        Jamal Hadi Salim <jhs@mojatatu.com>,
        "David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.16 38/81] net: sched: ife: signal not finding metaid
Date:   Fri, 27 Apr 2018 15:58:40 +0200
Message-Id: <20180427135745.321130132@linuxfoundation.org>
In-Reply-To: <20180427135743.216853156@linuxfoundation.org>
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4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexander Aring <aring@mojatatu.com>


[ Upstream commit f6cd14537ff9919081be19b9c53b9b19c0d3ea97 ]

We need to record stats for received metadata that we dont know how
to process. Have find_decode_metaid() return -ENOENT to capture this.

Signed-off-by: Alexander Aring <aring@mojatatu.com>
Reviewed-by: Yotam Gigi <yotam.gi@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/act_ife.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -652,7 +652,7 @@ static int find_decode_metaid(struct sk_
 		}
 	}
 
-	return 0;
+	return -ENOENT;
 }
 
 static int tcf_ife_decode(struct sk_buff *skb, const struct tc_action *a,