Use RTE_PTR_ADD where copying to the offset of a field in a structure
holding multiple fields, to avoid compiler warnings with decorated
rte_memcpy.

Fixes: 16a7dbc4f69006cc1c96ca2a2c6d3e3c51a2ff50 ("net/mlx5: make flow modify 
action list thread safe")
Cc: xuemi...@nvidia.com
Cc: ma...@nvidia.com
Cc: viachesl...@nvidia.com

Signed-off-by: Morten Brørup <m...@smartsharesystems.com>
---
v6:
* Add Fixes to patch description.
v5:
* First patch in series.
---
 drivers/net/mlx5/mlx5_flow_dv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 62c38b87a1..dd9f5fda1a 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -5662,7 +5662,7 @@ flow_dv_modify_create_cb(void *tool_ctx, void *cb_ctx)
                                   "cannot allocate resource memory");
                return NULL;
        }
-       rte_memcpy(&entry->ft_type,
+       rte_memcpy(RTE_PTR_ADD(entry, offsetof(typeof(*entry), ft_type)),
                   RTE_PTR_ADD(ref, offsetof(typeof(*ref), ft_type)),
                   key_len + data_len);
        if (entry->ft_type == MLX5DV_FLOW_TABLE_TYPE_FDB)
-- 
2.17.1

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