linux-kernel - [PATCH 09/15] media: s5p-mfc: constify s5p_mfc

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Message-Id: <20231224-n-s5p-mfc-const-v1-9-a3b246470fe4@linaro.org>
Date: Sun, 24 Dec 2023 16:44:08 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Marek Szyprowski <m.szyprowski@...sung.com>, 
 Andrzej Hajda <andrzej.hajda@...el.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Aakarsh Jain <aakarsh.jain@...sung.com>, linux-fsd@...la.coma, 
 linux-samsung-soc@...r.kernel.org, 
 Smitha T Murthy <smithatmurthy@...il.com>, 
 linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 09/15] media: s5p-mfc: constify s5p_mfc_fmt structures

Static "s5p_mfc_fmt" structures are not modified by the driver, so
they can be made const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h | 4 ++--
 drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c    | 6 +++---
 drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c    | 8 ++++----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
index fa556f27fa06..e9283020070e 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
@@ -633,8 +633,8 @@ struct s5p_mfc_ctx {
 	unsigned int int_err;
 	wait_queue_head_t queue;
 
-	struct s5p_mfc_fmt *src_fmt;
-	struct s5p_mfc_fmt *dst_fmt;
+	const struct s5p_mfc_fmt *src_fmt;
+	const struct s5p_mfc_fmt *dst_fmt;
 
 	struct vb2_queue vq_src;
 	struct vb2_queue vq_dst;
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
index 4dbe8792ac3d..2f664c7e9e4c 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
@@ -27,7 +27,7 @@
 #include "s5p_mfc_opr.h"
 #include "s5p_mfc_pm.h"
 
-static struct s5p_mfc_fmt formats[] = {
+static const struct s5p_mfc_fmt formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_NV12MT_16X16,
 		.codec_mode	= S5P_MFC_CODEC_NONE,
@@ -163,7 +163,7 @@ static struct s5p_mfc_fmt formats[] = {
 #define NUM_FORMATS ARRAY_SIZE(formats)
 
 /* Find selected format description */
-static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
+static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 {
 	unsigned int i;
 
@@ -387,7 +387,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
 	struct s5p_mfc_dev *dev = video_drvdata(file);
-	struct s5p_mfc_fmt *fmt;
+	const struct s5p_mfc_fmt *fmt;
 
 	mfc_debug(2, "Type is %d\n", f->type);
 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
index 4b4c129c09e7..d6a4b9c701eb 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
@@ -30,7 +30,7 @@
 #define DEF_SRC_FMT_ENC	V4L2_PIX_FMT_NV12M
 #define DEF_DST_FMT_ENC	V4L2_PIX_FMT_H264
 
-static struct s5p_mfc_fmt formats[] = {
+static const struct s5p_mfc_fmt formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_NV12MT_16X16,
 		.codec_mode	= S5P_MFC_CODEC_NONE,
@@ -97,7 +97,7 @@ static struct s5p_mfc_fmt formats[] = {
 };
 
 #define NUM_FORMATS ARRAY_SIZE(formats)
-static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
+static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 {
 	unsigned int i;
 
@@ -1394,7 +1394,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
 	struct s5p_mfc_dev *dev = video_drvdata(file);
-	struct s5p_mfc_fmt *fmt;
+	const struct s5p_mfc_fmt *fmt;
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 
 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
@@ -2355,7 +2355,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = {
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
 
-static int check_vb_with_fmt(struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb)
+static int check_vb_with_fmt(const struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb)
 {
 	int i;
 

-- 
2.34.1