I thought I remembered an issue with this but looked up the previous emails, and it looks like that this change actually should be safe!
Signed-off-by: Lyude Paul <[email protected]> On Thu, 2021-09-09 at 15:51 +0300, Jani Nikula wrote: > Extend the use of extended receiver cap at 0x2200 to cover > MAIN_LINK_CHANNEL_CODING_CAP in 0x2206, in case an implementation hides > the DP 2.0 128b/132b channel encoding cap. > > v2: Extend to DP_RECEIVER_CAP_SIZE (Ville) > > Cc: Lyude Paul <[email protected]> > Cc: [email protected] > Cc: Manasi Navare <[email protected]> > Cc: Ville Syrjälä <[email protected]> > Signed-off-by: Jani Nikula <[email protected]> > --- > drivers/gpu/drm/drm_dp_helper.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/drm_dp_helper.c > b/drivers/gpu/drm/drm_dp_helper.c > index 9b2a2961fca8..2e74b02ed96b 100644 > --- a/drivers/gpu/drm/drm_dp_helper.c > +++ b/drivers/gpu/drm/drm_dp_helper.c > @@ -608,7 +608,7 @@ static u8 drm_dp_downstream_port_count(const u8 > dpcd[DP_RECEIVER_CAP_SIZE]) > static int drm_dp_read_extended_dpcd_caps(struct drm_dp_aux *aux, > u8 dpcd[DP_RECEIVER_CAP_SIZE]) > { > - u8 dpcd_ext[6]; > + u8 dpcd_ext[DP_RECEIVER_CAP_SIZE]; > int ret; > > /* -- Cheers, Lyude Paul (she/her) Software Engineer at Red Hat
