From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 18 Apr 2016 19:19:45 +0000 (+0200)
Subject: ixgbe: protect vxlan_get_rx_port in ixgbe_service_task with rtnl_lock
X-Git-Tag: v4.1.12-92~2^2~199
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=62fae7de558b06ca0bbb88e60e38708ea6a5e5e8;p=users%2Fjedix%2Flinux-maple.git

ixgbe: protect vxlan_get_rx_port in ixgbe_service_task with rtnl_lock

Orabug: 24568240

vxlan_get_rx_port requires rtnl_lock to be held.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Shannon Nelson <shannon.nelson@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit b1f99a787e8239da3ea859709f5fb60b3fd02c13)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
---

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 74f2ed8a8da8b..4c2bdf27120a6 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7181,10 +7181,12 @@ static void ixgbe_service_task(struct work_struct *work)
 		return;
 	}
 #ifdef CONFIG_IXGBE_VXLAN
+	rtnl_lock();
 	if (adapter->flags2 & IXGBE_FLAG2_VXLAN_REREG_NEEDED) {
 		adapter->flags2 &= ~IXGBE_FLAG2_VXLAN_REREG_NEEDED;
 		vxlan_get_rx_port(adapter->netdev);
 	}
+	rtnl_unlock();
 #endif /* CONFIG_IXGBE_VXLAN */
 	ixgbe_reset_subtask(adapter);
 	ixgbe_phy_interrupt_subtask(adapter);