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[v7,01/10] media: venus: Use flex array for hfi_session_release_buffer_pkt

Message ID 20240814-cocci-flexarray-v7-1-8a1cc09ae6c4@chromium.org
State Superseded
Headers show
Series media: Fix the last set of coccinelle warnings | expand

Commit Message

Ricardo Ribalda Aug. 14, 2024, 11:39 a.m. UTC 
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@chromium.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Vikash Garodia <quic_vgarodia@quicinc.com>
---
 drivers/media/platform/qcom/venus/hfi_cmds.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Hans Verkuil Aug. 26, 2024, 7:12 a.m. UTC | #1 
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@chromium.org>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Acked-by: Vikash Garodia <quic_vgarodia@quicinc.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
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Patch

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 {