linux-kernel - [PATCH v7 02/10] media: venus: Refactor struct hfi_uncompressed_plane

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Message-Id: <20240814-cocci-flexarray-v7-2-8a1cc09ae6c4@chromium.org>
Date: Wed, 14 Aug 2024 11:39:22 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: 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: Hans Verkuil <hverkuil-cisco@...all.nl>, linux-media@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v7 02/10] media: venus: Refactor struct
 hfi_uncompressed_plane_info

This field is never used, but if we remove it we would change the size
of the struct and can lead to behavior change. Stay on the safe side by
replacing the single element array with a single element field.

This fixes the following cocci warning:
drivers/media/platform/qcom/venus/hfi_helper.h:1003:43-60: 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_helper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/hfi_helper.h b/drivers/media/platform/qcom/venus/hfi_helper.h
index e4c05d62cfc7..5e91f3f6984d 100644
--- a/drivers/media/platform/qcom/venus/hfi_helper.h
+++ b/drivers/media/platform/qcom/venus/hfi_helper.h
@@ -1005,7 +1005,7 @@ struct hfi_uncompressed_plane_constraints {
 struct hfi_uncompressed_plane_info {
 	u32 format;
 	u32 num_planes;
-	struct hfi_uncompressed_plane_constraints plane_constraints[1];
+	struct hfi_uncompressed_plane_constraints plane_constraints;
 };
 
 struct hfi_uncompressed_format_supported {

-- 
2.46.0.76.ge559c4bf1a-goog