23/01/2024 10:44, Thomas Monjalon: > 29/11/2023 03:39, Stephen Hemminger: > > --- a/drivers/net/mlx5/mlx5_tx.h > > +++ b/drivers/net/mlx5/mlx5_tx.h > > @@ -171,11 +171,12 @@ struct mlx5_txq_data { > > struct mlx5_txq_stats stats; /* TX queue counters. */ > > struct mlx5_txq_stats stats_reset; /* stats on last reset. */ > > struct mlx5_uar_data uar_data; > > - struct rte_mbuf *elts[0]; > > + struct rte_mbuf *elts[]; > > /* Storage for queued packets, must be the last field. */ > > } __rte_cache_aligned; > > > > /* TX queue control descriptor. */ > > +__extension__ > > struct mlx5_txq_ctrl { > > struct mlx5_txq_data is included at the end of struct mlx5_txq_ctrl > I don't understand why we need to declare an extension here.
If I remove __extension__: error: invalid use of structure with flexible array member [-Werror=pedantic] Is it a problem only in pedantic mode?