[Please CC me on all replies, I'm not subscribed to the list.] Harry Wentland wrote on 08.12.2016 02:26: > From: Tony Cheng <tony.cheng at amd.com> > > - dc_update_surfaces_for_target get called in ISR but apply_clk_constraints allocates memory > > Change-Id: I9f4b7b6ca4af27c35c007e3af95111081a77d242 > Signed-off-by: Tony Cheng <tony.cheng at amd.com> > Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com> > Acked-by: Harry Wentland <Harry.Wentland at amd.com> > --- > drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c > index 70b7673993b2..522ef7047564 100644 > --- a/drivers/gpu/drm/amd/display/dc/core/dc.c > +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c > @@ -1336,6 +1336,7 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda > int i, j; > bool is_new_pipe_surface[MAX_PIPES]; > const struct dc_surface *new_surfaces[MAX_SURFACES] = { 0 }; > + bool need_apply_clk_constraints = false; > > update_surface_trace(dc, updates, surface_count); > > @@ -1405,6 +1406,7 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda > > if (updates[i].plane_info || updates[i].scaling_info > || is_new_pipe_surface[j]) { > + need_apply_clk_constraints = true; Where is this variable used? I grepped through the tree at <https://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/amd?h=amd-staging-4.7>, but couldn't find it anywhere and it doesn't get passed anywhere from here. Or are there patches missing in Alex' tree? Cheers, Kai > if (updates[i].plane_info) { > surface->public.color_space = >