linux-kernel - [PATCH 3.12 09/91] snmp: Remove duplicate OUTMCAST stat increment

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Date:	Tue,  5 Jan 2016 18:45:53 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Neil Horman <nhorman@...driver.com>,
	Claus Jensen <claus.jensen@...rosemi.com>,
	David Miller <davem@...emloft.net>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 09/91] snmp: Remove duplicate OUTMCAST stat increment

From: Neil Horman <nhorman@...driver.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

[ Upstream commit 41033f029e393a64e81966cbe34d66c6cf8a2e7e ]

the OUTMCAST stat is double incremented, getting bumped once in the mcast code
itself, and again in the common ip output path.  Remove the mcast bump, as its
not needed

Validated by the reporter, with good results

Signed-off-by: Neil Horman <nhorman@...driver.com>
Reported-by: Claus Jensen <claus.jensen@...rosemi.com>
CC: Claus Jensen <claus.jensen@...rosemi.com>
CC: David Miller <davem@...emloft.net>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 net/ipv6/mcast.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index d81abd5ba767..452b6a1cc098 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1622,7 +1622,6 @@ out:
 	if (!err) {
 		ICMP6MSGOUT_INC_STATS(net, idev, ICMPV6_MLD2_REPORT);
 		ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
-		IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, payload_len);
 	} else {
 		IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
 	}
@@ -1986,7 +1985,6 @@ out:
 	if (!err) {
 		ICMP6MSGOUT_INC_STATS(net, idev, type);
 		ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
-		IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, full_len);
 	} else
 		IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
 
-- 
2.6.4

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