linux-kernel - RE: [PATCH] BACKPORT: drm/amdgpu/disply: set num

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Message-ID: <DM6PR12MB441701EC6E6D2A678F42A480B2DF9@DM6PR12MB4417.namprd12.prod.outlook.com>
Date:   Wed, 1 Jun 2022 04:04:45 +0000
From:   "Lin, Tsung-hua (Ryan)" <Tsung-hua.Lin@....com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "Li, Leon" <Leon.Li@....com>,
        "Swarnakar, Praful" <Praful.Swarnakar@....com>,
        "S, Shirish" <Shirish.S@....com>,
        "Li, Ching-shih (Louis)" <Ching-shih.Li@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        Daniel Vetter <daniel@...ll.ch>,
        "Kazlauskas, Nicholas" <Nicholas.Kazlauskas@....com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "Wentland, Harry" <Harry.Wentland@....com>,
        "Li, Sun peng (Leo)" <Sunpeng.Li@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Bas Nieuwenhuizen <bas@...nieuwenhuizen.nl>,
        Sean Paul <seanpaul@...omium.org>,
        Sasha Levin <sashal@...nel.org>,
        Mark Yacoub <markyacoub@...gle.com>,
        "Li, Roman" <Roman.Li@....com>,
        Ikshwaku Chauhan <ikshwaku.chauhan@....corp-partner.google.com>,
        Simon Ser <contact@...rsion.fr>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] BACKPORT: drm/amdgpu/disply: set num_crtc earlier

[AMD Official Use Only - General]

Hi Greg,

Thanks for your advice. I have modified the commit and submitted it to Gerrit and it's under code review now.

Many thanks,
Ryan Lin.

-----Original Message-----
From: Greg KH <gregkh@...uxfoundation.org> 
Sent: Monday, May 30, 2022 9:05 PM
To: Lin, Tsung-hua (Ryan) <Tsung-hua.Lin@....com>
Cc: Li, Leon <Leon.Li@....com>; Swarnakar, Praful <Praful.Swarnakar@....com>; S, Shirish <Shirish.S@....com>; Li, Ching-shih (Louis) <Ching-shih.Li@....com>; Deucher, Alexander <Alexander.Deucher@....com>; Daniel Vetter <daniel@...ll.ch>; Kazlauskas, Nicholas <Nicholas.Kazlauskas@....com>; stable@...r.kernel.org; Wentland, Harry <Harry.Wentland@....com>; Li, Sun peng (Leo) <Sunpeng.Li@....com>; Koenig, Christian <Christian.Koenig@....com>; David (ChunMing) Zhou <David1.Zhou@....com>; David Airlie <airlied@...ux.ie>; Bas Nieuwenhuizen <bas@...nieuwenhuizen.nl>; Sean Paul <seanpaul@...omium.org>; Sasha Levin <sashal@...nel.org>; Mark Yacoub <markyacoub@...gle.com>; Li, Roman <Roman.Li@....com>; Ikshwaku Chauhan <ikshwaku.chauhan@....corp-partner.google.com>; Simon Ser <contact@...rsion.fr>; amd-gfx@...ts.freedesktop.org; dri-devel@...ts.freedesktop.org; linux-kernel@...r.kernel.org
Subject: Re: [PATCH] BACKPORT: drm/amdgpu/disply: set num_crtc earlier

On Mon, May 30, 2022 at 05:29:02PM +0800, Ryan Lin wrote:
> From: Alex Deucher <alexander.deucher@....com>
> 
> To avoid a recently added warning:
>  Bogus possible_crtcs: [ENCODER:65:TMDS-65] possible_crtcs=0xf (full 
> crtc mask=0x7)
>  WARNING: CPU: 3 PID: 439 at drivers/gpu/drm/drm_mode_config.c:617 
> drm_mode_config_validate+0x178/0x200 [drm] In this case the warning is harmless, but confusing to users.
> 
> Fixes: 0df108237433 ("drm: Validate encoder->possible_crtcs")
> Bug: 
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugz
> illa.kernel.org%2Fshow_bug.cgi%3Fid%3D209123&amp;data=05%7C01%7Ctsung-
> hua.lin%40amd.com%7Cad089e5485984cd0cc1f08da423d097f%7C3dd8961fe4884e6
> 08e11a82d994e183d%7C0%7C0%7C637895127184900879%7CUnknown%7CTWFpbGZsb3d
> 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C
> 3000%7C%7C%7C&amp;sdata=0UcR%2BZszfxXaFz6LUqGq5eYgeqxDdrhySBL7mDmFPKc%
> 3D&amp;reserved=0
> Reviewed-by: Daniel Vetter <daniel@...ll.ch>
> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@....com>
> Signed-off-by: Alex Deucher <alexander.deucher@....com>
> Cc: stable@...r.kernel.org


Why did you not sign off on this?

And what is the git id of this in Linus's tree?

> Conflicts:
> 	drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> 	[Ryan Lin: Fixed the conflict, remove the non-main changed part
> 	of this patch]

No need for this here, right?

thanks,

greg k-h