From: Alejandro Lucero <alejandro.lucero@netronome.com>
Date: Fri, 16 Sep 2016 11:11:14 +0000 (+0100)
Subject: net/nfp: unregister interrupt callback when closing
X-Git-Tag: spdx-start~5846
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=25853c71d33296f5edb8841b3cbb3f89c2d74742;p=dpdk.git

net/nfp: unregister interrupt callback when closing

With an app using hotplug feature, when a device is unplugged without
unregistering makes the interrupt handling unstable.

Fixes: 6c53f87b3497 ("nfp: add link status interrupt")

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
---

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 9b05bacee6..d526f34a29 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -733,6 +733,11 @@ nfp_net_close(struct rte_eth_dev *dev)
 	rte_intr_disable(&dev->pci_dev->intr_handle);
 	nn_cfg_writeb(hw, NFP_NET_CFG_LSC, 0xff);
 
+	/* unregister callback func from eal lib */
+	rte_intr_callback_unregister(&dev->pci_dev->intr_handle,
+				     nfp_net_dev_interrupt_handler,
+				     (void *)dev);
+
 	/*
 	 * The ixgbe PMD driver disables the pcie master on the
 	 * device. The i40e does not...