linux-kernel - [PATCH] media: uapi: v4l: Change V4L2_TYPE_IS

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Date: Fri, 17 May 2024 18:49:40 +0900
From: Nas Chung <nas.chung@...psnmedia.com>
To: mchehab@...nel.org,
	linux-media@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Nas Chung <nas.chung@...psnmedia.com>
Subject: [PATCH] media: uapi: v4l: Change V4L2_TYPE_IS_CAPTURE condition

We expect V4L2_TYPE_IS_CAPTURE() macro allow only CAPTURE type.
But, Inverting OUTPUT type can allow undefined v4l2_buf_type.
Check CAPTURE type directly instead of inverting OUTPUT type.

Signed-off-by: Nas Chung <nas.chung@...psnmedia.com>
---
 include/uapi/linux/videodev2.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index fe6b67e83751..32b10e2b7695 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -171,7 +171,13 @@ enum v4l2_buf_type {
 	 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT			\
 	 || (type) == V4L2_BUF_TYPE_META_OUTPUT)
 
-#define V4L2_TYPE_IS_CAPTURE(type) (!V4L2_TYPE_IS_OUTPUT(type))
+#define V4L2_TYPE_IS_CAPTURE(type)				\
+	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE			\
+	 || (type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
+	 || (type) == V4L2_BUF_TYPE_VBI_CAPTURE			\
+	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE		\
+	 || (type) == V4L2_BUF_TYPE_SDR_CAPTURE			\
+	 || (type) == V4L2_BUF_TYPE_META_CAPTURE)
 
 enum v4l2_tuner_type {
 	V4L2_TUNER_RADIO	     = 1,
-- 
2.25.1