On Tue, Feb 18, 2020 at 04:50:01PM +0800, Koenig, Christian wrote:
> Am 18.02.20 um 09:30 schrieb Huang Rui:
> > While the current amdgpu doesn't support TMZ, it will return the error if user
> > mode would like to allocate secure buffer.
> >
> > Fixes: 17d907c drm/amdgpu: implement TMZ accessor (v3)
> >
> > v2: we didn't need this checking anymore.
>
> You misunderstood me.
>
ok...
> >
> > Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 5 -----
> > 1 file changed, 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > index b51a060..5cbc63a 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> > @@ -235,11 +235,6 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
> > if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
> > return -EINVAL;
> >
> > - if (amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
> > - DRM_ERROR("Cannot allocate secure buffer since TMZ is disabled\n");
>
> Only the error message should be removed, but we still need to test the
> flag.
>
> E.g. in general we should never log that userspace sends invalid parameters.
>
Why? It probably can help userspace to understand what wrong input it is.
Thanks,
Ray
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