linux-kernel - Re: [PATCH v2 10/18] media: venus: Use flex array for hfi_session_release_buffer

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Date: Fri, 10 May 2024 00:37:15 +0100
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Ricardo Ribalda <ribalda@...omium.org>,
 Michael Tretter <m.tretter@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Mauro Carvalho Chehab <mchehab@...nel.org>,
 Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 Michal Simek <michal.simek@....com>, Andy Walls <awalls@...metrocast.net>,
 Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
 Vikash Garodia <quic_vgarodia@...cinc.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
 Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: Re: [PATCH v2 10/18] media: venus: Use flex array for
 hfi_session_release_buffer_pkt

On 07/05/2024 17:27, 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>
> ---
>   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 41f765eac4d9..6dff949c4402 100644
> --- a/drivers/media/platform/qcom/venus/hfi_cmds.h
> +++ b/drivers/media/platform/qcom/venus/hfi_cmds.h
> @@ -201,7 +201,7 @@ 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 {
> 
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>