[dpdk-dev] [PATCH] nfp: unregister interrupt callback function when closing device

[Alejandro Lucero]

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 at netronome.com>
---
 drivers/net/nfp/nfp_net.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 229c8e6..94c64db 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...
-- 
1.9.1