On Thu, Nov 05, 2020 at 02:45:12PM +0000, Lee Jones wrote:
> The stack is too full.
>
> Fixes the following W=1 kernel build warning(s):
>
> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c: In function ‘sideband_msg_req_encode_decode’:
> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:161:1: warning: the frame size of 1176 bytes is larger than 1024 bytes [-Wframe-larger-than=]
>
> Cc: David Airlie <airlied@xxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Cc: Lyude Paul <lyude@xxxxxxxxxx>
> Cc: David Francis <David.Francis@xxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> ---
> .../drm/selftests/test-drm_dp_mst_helper.c | 29 ++++++++++++-------
> 1 file changed, 18 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c b/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
> index 1d696ec001cff..0a539456f6864 100644
> --- a/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
> +++ b/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
> @@ -120,44 +120,51 @@ sideband_msg_req_equal(const struct drm_dp_sideband_msg_req_body *in,
> static bool
> sideband_msg_req_encode_decode(struct drm_dp_sideband_msg_req_body *in)
> {
> - struct drm_dp_sideband_msg_req_body out = {0};
> + struct drm_dp_sideband_msg_req_body *out;
How big is it? And why is it that big?
--
Ville Syrjälä
Intel
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