On 17/01/2023 23:01, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@xxxxxxxx> Clang warns about excessive stack usage on 32-bit targets: drivers/net/ethernet/mellanox/mlx5/core/en_main.c:3597:12: error: stack frame size (1184) exceeds limit (1024) in 'mlx5e_setup_tc' [-Werror,-Wframe-larger-than] static int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type, It turns out that both the mlx5e_setup_tc_mqprio_dcb() function and the mlx5e_safe_switch_params() function it calls have a copy of 'struct mlx5e_params' on the stack, and this structure is fairly large. Use dynamic allocation for the inner one. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- v2: simplify the patch --- .../net/ethernet/mellanox/mlx5/core/en_main.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
Thanks for your patch. Reviewed-by: Tariq Toukan <tariqt@xxxxxxxxxx>