linux-kernel - RE: [PATCH v2] drm/hyperv: Fix double mouse pointers

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Message-ID: <BYAPR21MB1270B4AB0AFC1668C9D9009FBFB09@BYAPR21MB1270.namprd21.prod.outlook.com>
Date:   Wed, 6 Oct 2021 18:43:56 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     "drawat.floss@...il.com" <drawat.floss@...il.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "tzimmermann@...e.de" <tzimmermann@...e.de>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
CC:     "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2] drm/hyperv: Fix double mouse pointers

> From: Dexuan Cui <decui@...rosoft.com>
> Sent: Thursday, September 16, 2021 12:37 PM
> To: drawat.floss@...il.com; Haiyang Zhang <haiyangz@...rosoft.com>;
> airlied@...ux.ie; daniel@...ll.ch; tzimmermann@...e.de;
> dri-devel@...ts.freedesktop.org
> Cc: linux-hyperv@...r.kernel.org; linux-kernel@...r.kernel.org; Dexuan Cui
> <decui@...rosoft.com>
> Subject: [PATCH v2] drm/hyperv: Fix double mouse pointers
> 
> 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@...rosoft.com>
> Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>
> Reviewed-by: Deepak Rawat <drawat.floss@...il.com>
> ---
> 
> Changes in v2:
> 	Renamed hyperv_send_ptr() to hyperv_hide_hw_ptr().
> 	Improved the comments and the git commit message.
> 	Added Reviewed-by's from Haiyang and Deepak.
> 
>  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   | 54
> ++++++++++++++++++++-
>  3 files changed, 55 insertions(+), 1 deletion(-)

Hi DRM maintainers,
Could you please take a look at the patch?

Thanks,
-- Dexuan