[PATCH 3/5] net/mlx5: fix stabilized function versions

[Dariusz Sosnowski <dsosnowski@nvidia.com>]

Offending patch stabilized the following function symbols:

- rte_pmd_mlx5_driver_event_cb_register
- rte_pmd_mlx5_driver_event_cb_unregister
- rte_pmd_mlx5_enable_steering
- rte_pmd_mlx5_disable_steering

These function symbols were introduced in 25.11.
Any application using these functions, linked against 25.11 version,
would fail when used with 26.07 libraries, because only DPDK_26 versions
of these symbols were exported.

This patch fixes that by adding proper function symbol versioning
to these symbols.

Fixes: e8cab133645f ("net/mlx5: promote some private API to stable")

Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
 drivers/net/mlx5/meson.build         |  2 ++
 drivers/net/mlx5/mlx5_driver_event.c | 22 ++++++++++++++++------
 drivers/net/mlx5/mlx5_flow.c         | 18 ++++++++++++------
 3 files changed, 30 insertions(+), 12 deletions(-)

diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index 82a7dfe782..0fa6322779 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -2,6 +2,8 @@
 # Copyright 2018 6WIND S.A.
 # Copyright 2018 Mellanox Technologies, Ltd
 
+use_function_versioning = true
+
 if not (is_linux or is_windows)
     build = false
     reason = 'only supported on Linux and Windows'
diff --git a/drivers/net/mlx5/mlx5_driver_event.c b/drivers/net/mlx5/mlx5_driver_event.c
index 89e49331c8..d0e22d6151 100644
--- a/drivers/net/mlx5/mlx5_driver_event.c
+++ b/drivers/net/mlx5/mlx5_driver_event.c
@@ -236,9 +236,8 @@ notify_existing_devices(rte_pmd_mlx5_driver_event_callback_t cb, void *opaque)
 		notify_existing_queues(port_id, cb, opaque);
 }
 
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_driver_event_cb_register)
-int
-rte_pmd_mlx5_driver_event_cb_register(rte_pmd_mlx5_driver_event_callback_t cb, void *opaque)
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_driver_event_cb_register,
+		   (rte_pmd_mlx5_driver_event_callback_t cb, void *opaque))
 {
 	struct registered_cb *r;
 
@@ -264,9 +263,14 @@ rte_pmd_mlx5_driver_event_cb_register(rte_pmd_mlx5_driver_event_callback_t cb, v
 	return 0;
 }
 
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_driver_event_cb_unregister)
-int
-rte_pmd_mlx5_driver_event_cb_unregister(rte_pmd_mlx5_driver_event_callback_t cb)
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_driver_event_cb_register,
+				(rte_pmd_mlx5_driver_event_callback_t cb, void *opaque))
+{
+	return rte_pmd_mlx5_driver_event_cb_register(cb, opaque);
+}
+
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_driver_event_cb_unregister,
+		   (rte_pmd_mlx5_driver_event_callback_t cb))
 {
 	struct registered_cb *r;
 	bool found = false;
@@ -289,6 +293,12 @@ rte_pmd_mlx5_driver_event_cb_unregister(rte_pmd_mlx5_driver_event_callback_t cb)
 	return 0;
 }
 
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_driver_event_cb_unregister,
+				(rte_pmd_mlx5_driver_event_callback_t cb))
+{
+	return rte_pmd_mlx5_driver_event_cb_unregister(cb);
+}
+
 RTE_FINI(rte_pmd_mlx5_driver_event_cb_cleanup) {
 	struct registered_cb *r;
 
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index a95dd9dc94..4b984df892 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -12506,9 +12506,7 @@ flow_disable_steering_run_on_related(struct rte_eth_dev *dev,
 	}
 }
 
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_disable_steering)
-void
-rte_pmd_mlx5_disable_steering(void)
+RTE_DEFAULT_SYMBOL(26, void, rte_pmd_mlx5_disable_steering, (void))
 {
 	uint16_t port_id;
 
@@ -12532,9 +12530,12 @@ rte_pmd_mlx5_disable_steering(void)
 	mlx5_steering_disabled = true;
 }
 
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_enable_steering)
-int
-rte_pmd_mlx5_enable_steering(void)
+RTE_VERSION_EXPERIMENTAL_SYMBOL(void, rte_pmd_mlx5_disable_steering, (void))
+{
+	rte_pmd_mlx5_disable_steering();
+}
+
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_enable_steering, (void))
 {
 	uint16_t port_id;
 
@@ -12551,6 +12552,11 @@ rte_pmd_mlx5_enable_steering(void)
 	return 0;
 }
 
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_enable_steering, (void))
+{
+	return rte_pmd_mlx5_enable_steering();
+}
+
 bool
 mlx5_vport_rx_metadata_passing_enabled(const struct mlx5_dev_ctx_shared *sh)
 {
-- 
2.47.3