Re: [Intel-gfx] [PATCH 04/18] drm/vmwgfx: Remove confused comment from vmw_du_connector_atomic_set_property

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On Tue, Oct 02, 2018 at 04:36:31PM +0000, Thomas Hellstrom wrote:
> On 10/02/2018 05:15 PM, Ville Syrjälä wrote:
> > On Tue, Oct 02, 2018 at 03:35:12PM +0200, Daniel Vetter wrote:
> >> The core _does_ the call to drm_atomic_commit for you. That's pretty
> >> much the entire point of having the fancy new atomic_set/get_prop
> >> callbacks.
> >>
> >> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >> Cc: VMware Graphics <linux-graphics-maintainer@xxxxxxxxxx>
> >> Cc: Sinclair Yeh <syeh@xxxxxxxxxx>
> >> Cc: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
> >> ---
> >>   drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 6 ------
> >>   1 file changed, 6 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> >> index 292e48feba83..049bd50eea87 100644
> >> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> >> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> >> @@ -2311,12 +2311,6 @@ vmw_du_connector_atomic_set_property(struct drm_connector *connector,
> >>   
> >>   	if (property == dev_priv->implicit_placement_property) {
> >>   		vcs->is_implicit = val;
> >> -
> >> -		/*
> >> -		 * We should really be doing a drm_atomic_commit() to
> >> -		 * commit the new state, but since this doesn't cause
> >> -		 * an immedate state change, this is probably ok
> >> -		 */
> >>   		du->is_implicit = vcs->is_implicit;
> > Maybe the comment is referring to delaying the du->is_implicit
> > assignment to commit time? Otherwise a TEST_ONLY/failed commit
> > will clobber this.
> 
> The is_implicit property is made read-only in a vmwgfx recent commit. 
> Not sure exactly where it ended up, though. (-fixes, -next or -limbo). 
> Need to take a look.

I guess -limbo, since my tree contains both drm-fixes and drm-next. Or at
least they didn't make it to Dave yet.
-Daniel

> 
> 
> >
> > Hmm. There's both .set_property() and .atomic_set_property()
> > in there. I wonder what that's about.
> 
> Probably a leftover. I take it .set_property() is not needed when we 
> have .atomic_set_property()?
> 
> /Thomas
> 
> >
> >>   	} else {
> >>   		return -EINVAL;
> >> -- 
> >> 2.19.0.rc2
> >>
> >> _______________________________________________
> >> Intel-gfx mailing list
> >> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Fintel-gfx&amp;data=02%7C01%7Cthellstrom%40vmware.com%7C8376824afaaa4e7ebd6808d6287a0a88%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C1%7C0%7C636740901969428557&amp;sdata=JDQsTWKhvZAyUnW76dNMFGm0nzJIJjNrSSJYtDuqDlg%3D&amp;reserved=0
> 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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