linux-kernel - Re: [PATCH v7 01/10] media: venus: Use flex array for hfi_session_release_buffer

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Message-ID: <fdaccc25-3745-48db-b01a-46a834e2fe0e@xs4all.nl>
Date: Mon, 26 Aug 2024 09:12:38 +0200
From: Hans Verkuil <hverkuil-cisco@...all.nl>
To: Ricardo Ribalda <ribalda@...omium.org>,
 Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
 Vikash Garodia <quic_vgarodia@...cinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 01/10] media: venus: Use flex array for
 hfi_session_release_buffer_pkt

On 14/08/2024 13:39, Ricardo Ribalda wrote:
> Replace the old style single element array with a flex array. We do not
> allocate this structure, so the size change should not be an issue.
> 
> This fixes the following cocci warning:
> drivers/media/platform/qcom/venus/hfi_cmds.h:204:5-16: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> Acked-by: Vikash Garodia <quic_vgarodia@...cinc.com>
> ---
>  drivers/media/platform/qcom/venus/hfi_cmds.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/hfi_cmds.h b/drivers/media/platform/qcom/venus/hfi_cmds.h
> index 20acd412ee7b..42825f07939d 100644
> --- a/drivers/media/platform/qcom/venus/hfi_cmds.h
> +++ b/drivers/media/platform/qcom/venus/hfi_cmds.h
> @@ -227,7 +227,7 @@ struct hfi_session_release_buffer_pkt {
>  	u32 extradata_size;
>  	u32 response_req;
>  	u32 num_buffers;
> -	u32 buffer_info[1];
> +	u32 buffer_info[];
>  };
>  
>  struct hfi_session_release_resources_pkt {
> 

Marked 'Duplicated' in patchwork: Kees Cook already applied a variation of this:

https://lore.kernel.org/lkml/5a9939d7-dd05-4ce8-9231-5ae7af32b09f@linaro.org/T/

Regards,

	Hans