[PATCH v5 4/4] net/mlx5: fix warning about rte_memcpy length

["Morten Brørup" <mb@smartsharesystems.com>]

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

Signed-off-by: Morten Brørup <mb@smartsharesystems.com>

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