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Date:   Tue, 31 Oct 2023 13:42:17 +0200
From:   =?UTF-8?Q?Jos=C3=A9_Pekkarinen?= <jose.pekkarinen@foxhound.fi>
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     harry.wentland@amd.com, sunpeng.li@amd.com,
        Rodrigo.Siqueira@amd.com, skhan@linuxfoundation.org,
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        linux-kernel-mentees@lists.linuxfoundation.org,
        dri-devel@lists.freedesktop.org, Xinhui.Pan@amd.com,
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        SyedSaaem.Rizvi@amd.com, aurabindo.pillai@amd.com,
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        alexander.deucher@amd.com, Jun.Lei@amd.com, airlied@gmail.com,
        christian.koenig@amd.com
Subject: Re: [PATCH] drm/amd/display: remove redundant check
In-Reply-To: <2023103115-obstruct-smudgy-6cc6@gregkh>
References: <20231030171748.35482-1-jose.pekkarinen@foxhound.fi>
 <2023103115-obstruct-smudgy-6cc6@gregkh>
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On 2023-10-31 07:48, Greg KH wrote:
> On Mon, Oct 30, 2023 at 07:17:48PM +0200, José Pekkarinen wrote:
>> This patch addresses the following warning spotted by
>> using coccinelle where the case checked does the same
>> than the else case.
>> 
>> drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c:4664:8-10: 
>> WARNING: possible condition with no effect (if == else)
>> 
>> Fixes: 974ce181 ("drm/amd/display: Add check for PState change in 
>> DCN32")
>> 
>> Cc: stable@vger.kernel.org
> 
> Why is this relevant for stable?

     Hi,

     I was asked to send it for stable because this code
looks different in amd-staging-drm-next, see here.

https://gitlab.freedesktop.org/agd5f/linux/-/blob/amd-staging-drm-next/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c#L4661

     Feel free to let me know if this is wrong, or if I
need to review some other guidelines I may have missed.

     Thanks!

     José.