Re: [PATCH 1/4] drm/vgem: Fix vgem_init to get drm device avaliable.

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On Wed, Apr 04, 2018 at 11:46:30AM +0100, Emil Velikov wrote:
> On 29 March 2018 at 08:17, Daniel Vetter <daniel@xxxxxxxx> wrote:
> > On Wed, Mar 28, 2018 at 04:11:39PM +0100, Emil Velikov wrote:
> >> On 28 March 2018 at 15:49, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
> >> > Quoting Emil Velikov (2018-03-28 02:24:48)
> >> >> From: Deepak Sharma <deepak.sharma@xxxxxxx>
> >> >>
> >> >> Modify vgem_init to take platform dev as parent in drm_dev_init.
> >> >> This will make drm device available at "/sys/devices/platform/vgem"
> >> >> in x86 chromebook.
> >> >>
> >> >> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >> >> Signed-off-by: Deepak Sharma <deepak.sharma@xxxxxxx>
> >> >> Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> >> >> Signed-off-by: Emil Velikov <emil.velikov@xxxxxxxxxxxxx>
> >> >> ---
> >> >>  drivers/gpu/drm/vgem/vgem_drv.c | 15 +++++++--------
> >> >>  1 file changed, 7 insertions(+), 8 deletions(-)
> >> >>
> >> >> diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
> >> >> index 2524ff116f00..636ce32fa945 100644
> >> >> --- a/drivers/gpu/drm/vgem/vgem_drv.c
> >> >> +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> >> >> @@ -472,31 +472,30 @@ static int __init vgem_init(void)
> >> >>         if (!vgem_device)
> >> >>                 return -ENOMEM;
> >> >>
> >> >> -       ret = drm_dev_init(&vgem_device->drm, &vgem_driver, NULL);
> >> >> -       if (ret)
> >> >> -               goto out_free;
> >> >
> >> > A shame to lose the test coverage this gave us. Care to replace that
> >> > with a selftest?
> >>
> >> Hi Chris, can you be more specific:
> >> - What test coverage is lost - some IGT tests/other?
> >> - Can you provide a rough outline of the test you have in mind?
> >
> > I think Chris meant the NULL case for drm_dev_init (which was broken
> > once). But since this series also disallows that with a subsequent patch I
> > think we're just fine.
> Ack. How are we going to merge the first two patches?
> 
> Note: 3/4 and 4/4 are _not_ safe - will need to finish some
> pre-requisite work first.

Oh, why are 3&4 not safe? I thought they are, that's why I smashed an r-b
onto them. Wrt merging, stuff them all into drm-misc imo.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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