[dpdk-stable] patch 'net/failsafe: fix duplicate event registration' has been queued to stable release 18.02.2

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 18.02.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/25/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From e43d7b2b401b39ad50035fe76997ccb9630d34d3 Mon Sep 17 00:00:00 2001
From: Matan Azrad <matan at mellanox.com>
Date: Tue, 22 May 2018 12:38:47 +0000
Subject: [PATCH] net/failsafe: fix duplicate event registration

[ upstream commit 602c5623c8a884036aa81712f89542159a243a58 ]

When the fail-safe device is reconfigured, it attempts to register
again for the sub-devices LSC and RMV events.

Prevent an event registration if it is already done.

Fixes: 598fb8aec6f6 ("net/failsafe: support device removal")

Signed-off-by: Matan Azrad <matan at mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
---
 drivers/net/failsafe/failsafe_ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/failsafe/failsafe_ops.c b/drivers/net/failsafe/failsafe_ops.c
index 2f9f60b16..d9fc480f9 100644
--- a/drivers/net/failsafe/failsafe_ops.c
+++ b/drivers/net/failsafe/failsafe_ops.c
@@ -145,7 +145,7 @@ fs_dev_configure(struct rte_eth_dev *dev)
 			fs_unlock(dev, 0);
 			return ret;
 		}
-		if (rmv_interrupt) {
+		if (rmv_interrupt && sdev->rmv_callback == 0) {
 			ret = rte_eth_dev_callback_register(PORT_ID(sdev),
 					RTE_ETH_EVENT_INTR_RMV,
 					failsafe_eth_rmv_event_callback,
@@ -157,7 +157,7 @@ fs_dev_configure(struct rte_eth_dev *dev)
 				sdev->rmv_callback = 1;
 		}
 		dev->data->dev_conf.intr_conf.rmv = 0;
-		if (lsc_interrupt) {
+		if (lsc_interrupt && sdev->lsc_callback == 0) {
 			ret = rte_eth_dev_callback_register(PORT_ID(sdev),
 						RTE_ETH_EVENT_INTR_LSC,
 						failsafe_eth_lsc_event_callback,
-- 
2.14.2