linux-kernel - [PATCH 4.12 079/106] bonding: commit link status change after propose

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Message-Id: <20170809164527.920948627@linuxfoundation.org>
Date:   Wed,  9 Aug 2017 09:53:03 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Benjamin Gilbert <benjamin.gilbert@...eos.com>,
        Mahesh Bandewar <maheshb@...gle.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.12 079/106] bonding: commit link status change after propose

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

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

From: WANG Cong <xiyou.wangcong@...il.com>


[ Upstream commit d94708a553022bf012fa95af10532a134eeb5a52 ]

Commit de77ecd4ef02 ("bonding: improve link-status update in mii-monitoring")
moves link status commitment into bond_mii_monitor(), but it still relies
on the return value of bond_miimon_inspect() as the hint. We need to return
non-zero as long as we propose a link status change.

Fixes: de77ecd4ef02 ("bonding: improve link-status update in mii-monitoring")
Reported-by: Benjamin Gilbert <benjamin.gilbert@...eos.com>
Tested-by: Benjamin Gilbert <benjamin.gilbert@...eos.com>
Cc: Mahesh Bandewar <maheshb@...gle.com>
Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>
Acked-by: Mahesh Bandewar <maheshb@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/bonding/bond_main.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2047,6 +2047,7 @@ static int bond_miimon_inspect(struct bo
 				continue;
 
 			bond_propose_link_state(slave, BOND_LINK_FAIL);
+			commit++;
 			slave->delay = bond->params.downdelay;
 			if (slave->delay) {
 				netdev_info(bond->dev, "link status down for %sinterface %s, disabling it in %d ms\n",
@@ -2085,6 +2086,7 @@ static int bond_miimon_inspect(struct bo
 				continue;
 
 			bond_propose_link_state(slave, BOND_LINK_BACK);
+			commit++;
 			slave->delay = bond->params.updelay;
 
 			if (slave->delay) {