[PATCH] drm/hyperv: Fix double mouse pointers

[Haiyang Zhang]

> -----Original Message-----
> From: Dexuan Cui <decui at microsoft.com>
> Sent: Monday, September 13, 2021 2:27 PM
> To: drawat.floss at gmail.com; Haiyang Zhang <haiyangz at microsoft.com>;
> airlied at linux.ie; daniel at ffwll.ch; tzimmermann at suse.de; dri-
> devel at lists.freedesktop.org
> Cc: linux-hyperv at vger.kernel.org; linux-kernel at vger.kernel.org; Dexuan
> Cui <decui at microsoft.com>
> Subject: [PATCH] drm/hyperv: Fix double mouse pointers
> 
> It looks like Hyper-V supports a hardware cursor feature. It is not used
> by Linux VM, but the Hyper-V host still draws a point as an extra mouse
> pointer, which is unwanted, especially when Xorg is running.
> 
> The hyperv_fb driver uses synthvid_send_ptr() to hide the unwanted
> pointer.
> When the hyperv_drm driver was developed, the function
> synthvid_send_ptr()
> was not copied from the hyperv_fb driver. Fix the issue by adding the
> function into hyperv_drm.
> 
> Fixes: 76c56a5affeb ("drm/hyperv: Add DRM driver for hyperv synthetic
> video device")
> Signed-off-by: Dexuan Cui <decui at microsoft.com>
> Cc: Deepak Rawat <drawat.floss at gmail.com>
> Cc: Haiyang Zhang <haiyangz at microsoft.com>
> ---
>  drivers/gpu/drm/hyperv/hyperv_drm.h         |  1 +
>  drivers/gpu/drm/hyperv/hyperv_drm_modeset.c |  1 +
>  drivers/gpu/drm/hyperv/hyperv_drm_proto.c   | 39 ++++++++++++++++++++-
>  3 files changed, 40 insertions(+), 1 deletion(-)

Thank you!
Reviewed-by: Haiyang Zhang <haiyangz at microsoft.com>