From: Stephen Hemminger <stephen@networkplumber.org>
Date: Sat, 13 Nov 2021 17:22:56 +0000 (-0800)
Subject: eal: cleanup multiprocess hotplug resources
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e8dc971b63a4a70daafb5cd5a6378b194d65f9cf;p=dpdk.git

eal: cleanup multiprocess hotplug resources

When rte_eal_cleanup is called, hotplug should unregister the
resources associated with the multi-process server.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/lib/eal/common/hotplug_mp.c b/lib/eal/common/hotplug_mp.c
index bf55056f59..bde0de196e 100644
--- a/lib/eal/common/hotplug_mp.c
+++ b/lib/eal/common/hotplug_mp.c
@@ -462,3 +462,8 @@ int eal_mp_dev_hotplug_init(void)
 
 	return 0;
 }
+
+void eal_mp_dev_hotplug_cleanup(void)
+{
+	rte_mp_action_unregister(EAL_DEV_MP_ACTION_REQUEST);
+}
diff --git a/lib/eal/common/hotplug_mp.h b/lib/eal/common/hotplug_mp.h
index 8fcf9b52e2..4848446c85 100644
--- a/lib/eal/common/hotplug_mp.h
+++ b/lib/eal/common/hotplug_mp.h
@@ -37,6 +37,12 @@ struct eal_dev_mp_req {
 int
 eal_mp_dev_hotplug_init(void);
 
+/**
+ * Unregister all mp action callbacks for hotplug.
+ */
+void
+eal_mp_dev_hotplug_cleanup(void);
+
 /**
  * This is a synchronous wrapper for secondary process send
  * request to primary process, this is invoked when an attach
diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c
index d77cd871be..5583ba9f37 100644
--- a/lib/eal/linux/eal.c
+++ b/lib/eal/linux/eal.c
@@ -1284,6 +1284,7 @@ rte_eal_cleanup(void)
 	rte_mp_channel_cleanup();
 	/* after this point, any DPDK pointers will become dangling */
 	rte_eal_memory_detach();
+	eal_mp_dev_hotplug_cleanup();
 	rte_eal_alarm_cleanup();
 	rte_trace_save();
 	eal_trace_fini();