linux-kernel - Re: [PATCH][next] media: venus: hfi_cmds: Replace one-element array with flex-array member and use __counted

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Date: Tue, 9 Jan 2024 07:59:33 -0600
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Sergey Senozhatsky <senozhatsky@...omium.org>
Cc: Kees Cook <keescook@...omium.org>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
 Vikash Garodia <quic_vgarodia@...cinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, Andy Gross
 <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, linux-media@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] media: venus: hfi_cmds: Replace one-element array
 with flex-array member and use __counted_by

On 1/9/24 07:28, Sergey Senozhatsky wrote:
> On (24/01/09 07:17), Gustavo A. R. Silva wrote:
>>
>>> Sorry for shameless plug, a quick question: has any compiler implemented
>>> support for counted_by() at this point?
>>>
>>
>> Not yet. And at least for GCC, it's expected to be released in v15.
> 
> I see. Thank you.
> 
> I got confused by include/linux/compiler_attributes.h comment, as I'm on
> clang-18 currently, seems that we need to bump min compilers version.

Ah yes, compiler devs have been running into some issues, and they had to
postpone the release of the attribute.

> Oh, and clang link 404-s on me. I'll send a quick patch, I guess.
> 

You're right, ick!

--
Gustavo