patch 'vfio: cleanup the multiprocess sync handle' has been queued to stable release 19.11.12

[christian.ehrhardt@canonical.com]

Hi,

FYI, your patch has been queued to stable release 19.11.12

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/27/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/dcae27834511c94d971db981a07029849e03c271

Thanks.

Christian Ehrhardt <christian.ehrhardt@canonical.com>

---
From dcae27834511c94d971db981a07029849e03c271 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Sat, 13 Nov 2021 09:22:55 -0800
Subject: [PATCH] vfio: cleanup the multiprocess sync handle

[ upstream commit 6412941ae8d183ead5720f06cd2616f7c523f6a8 ]

When rte_eal_cleanup is called the rte_mp_action for VFIO
should be freed.

Fixes: edf73dd33072 ("ipc: handle unsupported IPC in action register")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 lib/librte_eal/linux/eal/eal.c              | 4 ++++
 lib/librte_eal/linux/eal/eal_vfio.h         | 1 +
 lib/librte_eal/linux/eal/eal_vfio_mp_sync.c | 8 ++++++++
 3 files changed, 13 insertions(+)

diff --git a/lib/librte_eal/linux/eal/eal.c b/lib/librte_eal/linux/eal/eal.c
index a2898705b6..5fa8c82c63 100644
--- a/lib/librte_eal/linux/eal/eal.c
+++ b/lib/librte_eal/linux/eal/eal.c
@@ -1323,7 +1323,11 @@ rte_eal_cleanup(void)
 	 */
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 		rte_memseg_walk(mark_freeable, NULL);
+
 	rte_service_finalize();
+#ifdef VFIO_PRESENT
+	vfio_mp_sync_cleanup();
+#endif
 	rte_mp_channel_cleanup();
 	eal_cleanup_config(&internal_config);
 	return 0;
diff --git a/lib/librte_eal/linux/eal/eal_vfio.h b/lib/librte_eal/linux/eal/eal_vfio.h
index 6ebaca6a0c..921ee59538 100644
--- a/lib/librte_eal/linux/eal/eal_vfio.h
+++ b/lib/librte_eal/linux/eal/eal_vfio.h
@@ -133,6 +133,7 @@ int
 vfio_has_supported_extensions(int vfio_container_fd);
 
 int vfio_mp_sync_setup(void);
+void vfio_mp_sync_cleanup(void);
 
 #define EAL_VFIO_MP "eal_vfio_mp_sync"
 
diff --git a/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c b/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c
index 6254696ae5..76877f5b54 100644
--- a/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c
+++ b/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c
@@ -120,4 +120,12 @@ vfio_mp_sync_setup(void)
 	return 0;
 }
 
+void
+vfio_mp_sync_cleanup(void)
+{
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return;
+
+	rte_mp_action_unregister(EAL_VFIO_MP);
+}
 #endif
-- 
2.35.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-25 16:58:46.166767364 +0100
+++ 0050-vfio-cleanup-the-multiprocess-sync-handle.patch	2022-02-25 16:58:44.292990460 +0100
@@ -1 +1 @@
-From 6412941ae8d183ead5720f06cd2616f7c523f6a8 Mon Sep 17 00:00:00 2001
+From dcae27834511c94d971db981a07029849e03c271 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 6412941ae8d183ead5720f06cd2616f7c523f6a8 ]
+
@@ -10 +11,0 @@
-Cc: stable@dpdk.org
@@ -15,3 +16,3 @@
- lib/eal/linux/eal.c              | 4 ++++
- lib/eal/linux/eal_vfio.h         | 1 +
- lib/eal/linux/eal_vfio_mp_sync.c | 8 ++++++++
+ lib/librte_eal/linux/eal/eal.c              | 4 ++++
+ lib/librte_eal/linux/eal/eal_vfio.h         | 1 +
+ lib/librte_eal/linux/eal/eal_vfio_mp_sync.c | 8 ++++++++
@@ -20,7 +21,7 @@
-diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c
-index fad062a2dd..d77cd871be 100644
---- a/lib/eal/linux/eal.c
-+++ b/lib/eal/linux/eal.c
-@@ -1276,7 +1276,11 @@ rte_eal_cleanup(void)
- 	if (rte_eal_process_type() == RTE_PROC_PRIMARY &&
- 			internal_conf->hugepage_file.unlink_existing)
+diff --git a/lib/librte_eal/linux/eal/eal.c b/lib/librte_eal/linux/eal/eal.c
+index a2898705b6..5fa8c82c63 100644
+--- a/lib/librte_eal/linux/eal/eal.c
++++ b/lib/librte_eal/linux/eal/eal.c
+@@ -1323,7 +1323,11 @@ rte_eal_cleanup(void)
+ 	 */
+ 	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
@@ -34,6 +35,6 @@
- 	/* after this point, any DPDK pointers will become dangling */
- 	rte_eal_memory_detach();
-diff --git a/lib/eal/linux/eal_vfio.h b/lib/eal/linux/eal_vfio.h
-index c5d5f70548..bba5c7afa5 100644
---- a/lib/eal/linux/eal_vfio.h
-+++ b/lib/eal/linux/eal_vfio.h
+ 	eal_cleanup_config(&internal_config);
+ 	return 0;
+diff --git a/lib/librte_eal/linux/eal/eal_vfio.h b/lib/librte_eal/linux/eal/eal_vfio.h
+index 6ebaca6a0c..921ee59538 100644
+--- a/lib/librte_eal/linux/eal/eal_vfio.h
++++ b/lib/librte_eal/linux/eal/eal_vfio.h
@@ -48,4 +49,4 @@
-diff --git a/lib/eal/linux/eal_vfio_mp_sync.c b/lib/eal/linux/eal_vfio_mp_sync.c
-index a2accfab3a..d12bbaee64 100644
---- a/lib/eal/linux/eal_vfio_mp_sync.c
-+++ b/lib/eal/linux/eal_vfio_mp_sync.c
+diff --git a/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c b/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c
+index 6254696ae5..76877f5b54 100644
+--- a/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c
++++ b/lib/librte_eal/linux/eal/eal_vfio_mp_sync.c