patch 'ethdev: fix flow_ops_mutex for multi-process' has been queued to stable release 25.11.3

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 25.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/27/26. 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/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/0febeade2c22cb3a0a88effe7c0cfd7bfc73810c

Thanks.

Kevin

---
>From 0febeade2c22cb3a0a88effe7c0cfd7bfc73810c Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen at networkplumber.org>
Date: Wed, 29 Apr 2026 11:46:39 -0700
Subject: [PATCH] ethdev: fix flow_ops_mutex for multi-process

[ upstream commit 0c097afb269157ba55518c0f97419ecd54ca2e45 ]

The flow_ops_mutex in rte_eth_dev_data lives in shared memory and is
accessed by both primary and secondary processes. It must be
initialized with PTHREAD_PROCESS_SHARED.

Bugzilla ID: 662
Fixes: 80d1a9aff7f6 ("ethdev: make flow API thread safe")

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
Acked-by: Konstantin Ananyev <konstantin.ananyev at huawei.com>
---
 lib/ethdev/ethdev_driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ethdev/ethdev_driver.c b/lib/ethdev/ethdev_driver.c
index 2ec665be0f..70ddce5bfc 100644
--- a/lib/ethdev/ethdev_driver.c
+++ b/lib/ethdev/ethdev_driver.c
@@ -136,5 +136,5 @@ rte_eth_dev_allocate(const char *name)
 	eth_dev->data->backer_port_id = RTE_MAX_ETHPORTS;
 	eth_dev->data->mtu = RTE_ETHER_MTU;
-	pthread_mutex_init(&eth_dev->data->flow_ops_mutex, NULL);
+	rte_thread_mutex_init_shared(&eth_dev->data->flow_ops_mutex);
 	RTE_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
 	eth_dev_shared_data->allocated_ports++;
-- 
2.55.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2026-07-23 17:57:59.302047243 +0100
+++ 0021-ethdev-fix-flow_ops_mutex-for-multi-process.patch	2026-07-23 17:57:58.636777705 +0100
@@ -1 +1 @@
-From 0c097afb269157ba55518c0f97419ecd54ca2e45 Mon Sep 17 00:00:00 2001
+From 0febeade2c22cb3a0a88effe7c0cfd7bfc73810c Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 0c097afb269157ba55518c0f97419ecd54ca2e45 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org