linux-hardening - Re: [PATCH][next] drm/nouveau: Avoid -Wflex-array-member-not-at-end warning

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Message-ID: <e9a05386-54d8-4a18-8b16-4e871de094a4@kernel.org>
Date: Thu, 3 Oct 2024 21:09:02 +0200
From: Danilo Krummrich <dakr@...nel.org>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] drm/nouveau: Avoid -Wflex-array-member-not-at-end
 warning

On 10/3/24 8:44 PM, Gustavo A. R. Silva wrote:
> 
> 
> On 03/10/24 12:36, Danilo Krummrich wrote:
>> On 9/13/24 12:23 PM, Danilo Krummrich wrote:
>>> Hi,
>>>
>>> On 9/13/24 10:09 AM, Gustavo A. R. Silva wrote:
>>>> Hi all,
>>>>
>>>> Friendly ping: who can take this, please? 🙂
>>>
>>> Usually, that's me. But I thought you might want to send a v2 based on Kees'
>>> comments?
>>
>> Do you plan to follow up on this? I'd prefer if we could get rid of the open-
>> coded "17". So, maybe just go with the define until we have something like
>> STACK_FLEX_COUNT()?
> 
> Do you mean the following define...?>
> nv50_hdmi_enable(...)
> {
> ...
> #define data_len    17
>      DEFINE_RAW_FLEX(struct nvif_outp_infoframe_v0, args, data, data_len);
> ...rest of function...
> #undef data_len
> }

Yes, it's not great, but I think it's better than having the length in two
places.

> 
> Thanks
> -- 
> Gustavo
>