Re: [PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-26 Thread Lyude Paul
On Thu, 2018-11-22 at 09:34 +0100, Daniel Vetter wrote: > On Tue, Nov 13, 2018 at 11:47 PM Lyude Paul wrote: > > Jerry Zuo pointed out a rather obscure hotplugging issue that it seems I > > accidentally introduced into DRM two years ago. > > > > Pretend we have a topology like this: > > > > > -

Re: [PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-22 Thread Daniel Vetter
On Tue, Nov 13, 2018 at 11:47 PM Lyude Paul wrote: > > Jerry Zuo pointed out a rather obscure hotplugging issue that it seems I > accidentally introduced into DRM two years ago. > > Pretend we have a topology like this: > > |- DP-1: mst_primary >|- DP-4: active display >|- DP-5:

Re: [PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-21 Thread Lyude Paul
Pushed to drm-misc-fixes, thanks! On Thu, 2018-11-22 at 06:08 +1000, Dave Airlie wrote: > On Wed, 14 Nov 2018 at 08:47, Lyude Paul wrote: > > Jerry Zuo pointed out a rather obscure hotplugging issue that it seems I > > accidentally introduced into DRM two years ago. > > > > Pretend we have a

Re: [PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-21 Thread Dave Airlie
On Wed, 14 Nov 2018 at 08:47, Lyude Paul wrote: > > Jerry Zuo pointed out a rather obscure hotplugging issue that it seems I > accidentally introduced into DRM two years ago. > > Pretend we have a topology like this: > > |- DP-1: mst_primary >|- DP-4: active display >|- DP-5: disconnected

Re: [PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-14 Thread Sasha Levin
Hi, [This is an automated email] This commit has been processed because it contains a "Fixes:" tag, fixing commit: 263efde31f97 drm/dp/mst: Get validated port ref in drm_dp_update_payload_part1(). The bot has tested the following trees: v4.19.2, v4.18.19, v4.14.81, v4.9.137, v4.4.163,

[PATCH] drm/dp_mst: Skip validating ports during destruction, just ref

2018-11-13 Thread Lyude Paul
Jerry Zuo pointed out a rather obscure hotplugging issue that it seems I accidentally introduced into DRM two years ago. Pretend we have a topology like this: |- DP-1: mst_primary |- DP-4: active display |- DP-5: disconnected |- DP-6: active hub |- DP-7: active display |-