diff mbox

[07/10,media] coda: prefix v4l2_ioctl_ops with coda_

Message ID 1379582036-4840-8-git-send-email-p.zabel@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Philipp Zabel Sept. 19, 2013, 9:13 a.m. UTC
Moving the ioctl handler callbacks into the coda namespace helps
tremendously to make sense of backtraces.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/media/platform/coda.c | 123 +++++++++++++++++++++---------------------
 1 file changed, 63 insertions(+), 60 deletions(-)

Comments

Hans Verkuil Sept. 30, 2013, 11:50 a.m. UTC | #1
On 09/19/2013 11:13 AM, Philipp Zabel wrote:
> Moving the ioctl handler callbacks into the coda namespace helps
> tremendously to make sense of backtraces.

I like the idea, but I would just use the coda_ prefix, not coda_vidioc_. In general
the prefix is either vidioc_ or the name of the driver, not both.

Regards,

	Hans

> 
> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
> ---
>  drivers/media/platform/coda.c | 123 +++++++++++++++++++++---------------------
>  1 file changed, 63 insertions(+), 60 deletions(-)
> 
> diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
> index 4f038c2..9091664 100644
> --- a/drivers/media/platform/coda.c
> +++ b/drivers/media/platform/coda.c
> @@ -412,8 +412,8 @@ static char *coda_product_name(int product)
>  /*
>   * V4L2 ioctl() operations.
>   */
> -static int vidioc_querycap(struct file *file, void *priv,
> -			   struct v4l2_capability *cap)
> +static int coda_vidioc_querycap(struct file *file, void *priv,
> +				struct v4l2_capability *cap)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
> @@ -484,8 +484,8 @@ static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
>  	return -EINVAL;
>  }
>  
> -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
> -				   struct v4l2_fmtdesc *f)
> +static int coda_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
> +					struct v4l2_fmtdesc *f)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	struct vb2_queue *src_vq;
> @@ -503,13 +503,14 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
>  	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
>  }
>  
> -static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
> -				   struct v4l2_fmtdesc *f)
> +static int coda_vidioc_enum_fmt_vid_out(struct file *file, void *priv,
> +					struct v4l2_fmtdesc *f)
>  {
>  	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0);
>  }
>  
> -static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
> +static int coda_vidioc_g_fmt(struct file *file, void *priv,
> +			     struct v4l2_format *f)
>  {
>  	struct vb2_queue *vq;
>  	struct coda_q_data *q_data;
> @@ -536,7 +537,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
>  	return 0;
>  }
>  
> -static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
> +static int coda_vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
>  {
>  	unsigned int max_w, max_h;
>  	enum v4l2_field field;
> @@ -575,8 +576,8 @@ static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
>  	return 0;
>  }
>  
> -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
> -				  struct v4l2_format *f)
> +static int coda_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
> +				       struct v4l2_format *f)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	struct coda_codec *codec;
> @@ -604,7 +605,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
>  
>  	f->fmt.pix.colorspace = ctx->colorspace;
>  
> -	ret = vidioc_try_fmt(codec, f);
> +	ret = coda_vidioc_try_fmt(codec, f);
>  	if (ret < 0)
>  		return ret;
>  
> @@ -620,8 +621,8 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
>  	return 0;
>  }
>  
> -static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
> -				  struct v4l2_format *f)
> +static int coda_vidioc_try_fmt_vid_out(struct file *file, void *priv,
> +				       struct v4l2_format *f)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	struct coda_codec *codec;
> @@ -633,10 +634,10 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
>  	if (!f->fmt.pix.colorspace)
>  		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
>  
> -	return vidioc_try_fmt(codec, f);
> +	return coda_vidioc_try_fmt(codec, f);
>  }
>  
> -static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
> +static int coda_vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
>  {
>  	struct coda_q_data *q_data;
>  	struct vb2_queue *vq;
> @@ -666,61 +667,62 @@ static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
>  	return 0;
>  }
>  
> -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
> -				struct v4l2_format *f)
> +static int coda_vidioc_s_fmt_vid_cap(struct file *file, void *priv,
> +				     struct v4l2_format *f)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	int ret;
>  
> -	ret = vidioc_try_fmt_vid_cap(file, priv, f);
> +	ret = coda_vidioc_try_fmt_vid_cap(file, priv, f);
>  	if (ret)
>  		return ret;
>  
> -	return vidioc_s_fmt(ctx, f);
> +	return coda_vidioc_s_fmt(ctx, f);
>  }
>  
> -static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
> -				struct v4l2_format *f)
> +static int coda_vidioc_s_fmt_vid_out(struct file *file, void *priv,
> +				     struct v4l2_format *f)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	int ret;
>  
> -	ret = vidioc_try_fmt_vid_out(file, priv, f);
> +	ret = coda_vidioc_try_fmt_vid_out(file, priv, f);
>  	if (ret)
>  		return ret;
>  
> -	ret = vidioc_s_fmt(ctx, f);
> +	ret = coda_vidioc_s_fmt(ctx, f);
>  	if (ret)
>  		ctx->colorspace = f->fmt.pix.colorspace;
>  
>  	return ret;
>  }
>  
> -static int vidioc_reqbufs(struct file *file, void *priv,
> -			  struct v4l2_requestbuffers *reqbufs)
> +static int coda_vidioc_reqbufs(struct file *file, void *priv,
> +			       struct v4l2_requestbuffers *reqbufs)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
>  	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
>  }
>  
> -static int vidioc_querybuf(struct file *file, void *priv,
> -			   struct v4l2_buffer *buf)
> +static int coda_vidioc_querybuf(struct file *file, void *priv,
> +				struct v4l2_buffer *buf)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
>  	return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
>  }
>  
> -static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
> +static int coda_vidioc_qbuf(struct file *file, void *priv,
> +			    struct v4l2_buffer *buf)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
>  	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
>  }
>  
> -static int vidioc_expbuf(struct file *file, void *priv,
> -			 struct v4l2_exportbuffer *eb)
> +static int coda_vidioc_expbuf(struct file *file, void *priv,
> +			      struct v4l2_exportbuffer *eb)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
> @@ -738,7 +740,8 @@ static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
>  		(buf->sequence == (ctx->qsequence - 1)));
>  }
>  
> -static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
> +static int coda_vidioc_dqbuf(struct file *file, void *priv,
> +			     struct v4l2_buffer *buf)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	int ret;
> @@ -758,24 +761,24 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
>  	return ret;
>  }
>  
> -static int vidioc_create_bufs(struct file *file, void *priv,
> -			      struct v4l2_create_buffers *create)
> +static int coda_vidioc_create_bufs(struct file *file, void *priv,
> +				   struct v4l2_create_buffers *create)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
>  	return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create);
>  }
>  
> -static int vidioc_streamon(struct file *file, void *priv,
> -			   enum v4l2_buf_type type)
> +static int coda_vidioc_streamon(struct file *file, void *priv,
> +				enum v4l2_buf_type type)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  
>  	return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
>  }
>  
> -static int vidioc_streamoff(struct file *file, void *priv,
> -			    enum v4l2_buf_type type)
> +static int coda_vidioc_streamoff(struct file *file, void *priv,
> +				 enum v4l2_buf_type type)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(priv);
>  	int ret;
> @@ -792,8 +795,8 @@ static int vidioc_streamoff(struct file *file, void *priv,
>  	return ret;
>  }
>  
> -static int vidioc_decoder_cmd(struct file *file, void *fh,
> -			      struct v4l2_decoder_cmd *dc)
> +static int coda_vidioc_decoder_cmd(struct file *file, void *fh,
> +				   struct v4l2_decoder_cmd *dc)
>  {
>  	struct coda_ctx *ctx = fh_to_ctx(fh);
>  
> @@ -816,8 +819,8 @@ static int vidioc_decoder_cmd(struct file *file, void *fh,
>  	return 0;
>  }
>  
> -static int vidioc_subscribe_event(struct v4l2_fh *fh,
> -				  const struct v4l2_event_subscription *sub)
> +static int coda_vidioc_subscribe_event(struct v4l2_fh *fh,
> +				       const struct v4l2_event_subscription *sub)
>  {
>  	switch (sub->type) {
>  	case V4L2_EVENT_EOS:
> @@ -828,32 +831,32 @@ static int vidioc_subscribe_event(struct v4l2_fh *fh,
>  }
>  
>  static const struct v4l2_ioctl_ops coda_ioctl_ops = {
> -	.vidioc_querycap	= vidioc_querycap,
> +	.vidioc_querycap	= coda_vidioc_querycap,
>  
> -	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
> -	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt,
> -	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
> -	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
> +	.vidioc_enum_fmt_vid_cap = coda_vidioc_enum_fmt_vid_cap,
> +	.vidioc_g_fmt_vid_cap	= coda_vidioc_g_fmt,
> +	.vidioc_try_fmt_vid_cap	= coda_vidioc_try_fmt_vid_cap,
> +	.vidioc_s_fmt_vid_cap	= coda_vidioc_s_fmt_vid_cap,
>  
> -	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
> -	.vidioc_g_fmt_vid_out	= vidioc_g_fmt,
> -	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
> -	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
> +	.vidioc_enum_fmt_vid_out = coda_vidioc_enum_fmt_vid_out,
> +	.vidioc_g_fmt_vid_out	= coda_vidioc_g_fmt,
> +	.vidioc_try_fmt_vid_out	= coda_vidioc_try_fmt_vid_out,
> +	.vidioc_s_fmt_vid_out	= coda_vidioc_s_fmt_vid_out,
>  
> -	.vidioc_reqbufs		= vidioc_reqbufs,
> -	.vidioc_querybuf	= vidioc_querybuf,
> +	.vidioc_reqbufs		= coda_vidioc_reqbufs,
> +	.vidioc_querybuf	= coda_vidioc_querybuf,
>  
> -	.vidioc_qbuf		= vidioc_qbuf,
> -	.vidioc_expbuf		= vidioc_expbuf,
> -	.vidioc_dqbuf		= vidioc_dqbuf,
> -	.vidioc_create_bufs	= vidioc_create_bufs,
> +	.vidioc_qbuf		= coda_vidioc_qbuf,
> +	.vidioc_expbuf		= coda_vidioc_expbuf,
> +	.vidioc_dqbuf		= coda_vidioc_dqbuf,
> +	.vidioc_create_bufs	= coda_vidioc_create_bufs,
>  
> -	.vidioc_streamon	= vidioc_streamon,
> -	.vidioc_streamoff	= vidioc_streamoff,
> +	.vidioc_streamon	= coda_vidioc_streamon,
> +	.vidioc_streamoff	= coda_vidioc_streamoff,
>  
> -	.vidioc_decoder_cmd	= vidioc_decoder_cmd,
> +	.vidioc_decoder_cmd	= coda_vidioc_decoder_cmd,
>  
> -	.vidioc_subscribe_event = vidioc_subscribe_event,
> +	.vidioc_subscribe_event = coda_vidioc_subscribe_event,
>  	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
>  };
>  
> 

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Philipp Zabel Sept. 30, 2013, 1:23 p.m. UTC | #2
Am Montag, den 30.09.2013, 13:50 +0200 schrieb Hans Verkuil:
> On 09/19/2013 11:13 AM, Philipp Zabel wrote:
> > Moving the ioctl handler callbacks into the coda namespace helps
> > tremendously to make sense of backtraces.
> 
> I like the idea, but I would just use the coda_ prefix, not coda_vidioc_. In general
> the prefix is either vidioc_ or the name of the driver, not both.

Thank you, I'll change this patch (and the following patches)
accordingly.

regards
Philipp

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diff mbox

Patch

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 4f038c2..9091664 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -412,8 +412,8 @@  static char *coda_product_name(int product)
 /*
  * V4L2 ioctl() operations.
  */
-static int vidioc_querycap(struct file *file, void *priv,
-			   struct v4l2_capability *cap)
+static int coda_vidioc_querycap(struct file *file, void *priv,
+				struct v4l2_capability *cap)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
@@ -484,8 +484,8 @@  static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
 	return -EINVAL;
 }
 
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
-				   struct v4l2_fmtdesc *f)
+static int coda_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+					struct v4l2_fmtdesc *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct vb2_queue *src_vq;
@@ -503,13 +503,14 @@  static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
 	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
 }
 
-static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
-				   struct v4l2_fmtdesc *f)
+static int coda_vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+					struct v4l2_fmtdesc *f)
 {
 	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0);
 }
 
-static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+static int coda_vidioc_g_fmt(struct file *file, void *priv,
+			     struct v4l2_format *f)
 {
 	struct vb2_queue *vq;
 	struct coda_q_data *q_data;
@@ -536,7 +537,7 @@  static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
+static int coda_vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
 {
 	unsigned int max_w, max_h;
 	enum v4l2_field field;
@@ -575,8 +576,8 @@  static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-				  struct v4l2_format *f)
+static int coda_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+				       struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct coda_codec *codec;
@@ -604,7 +605,7 @@  static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 
 	f->fmt.pix.colorspace = ctx->colorspace;
 
-	ret = vidioc_try_fmt(codec, f);
+	ret = coda_vidioc_try_fmt(codec, f);
 	if (ret < 0)
 		return ret;
 
@@ -620,8 +621,8 @@  static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 	return 0;
 }
 
-static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
-				  struct v4l2_format *f)
+static int coda_vidioc_try_fmt_vid_out(struct file *file, void *priv,
+				       struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct coda_codec *codec;
@@ -633,10 +634,10 @@  static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
 	if (!f->fmt.pix.colorspace)
 		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
 
-	return vidioc_try_fmt(codec, f);
+	return coda_vidioc_try_fmt(codec, f);
 }
 
-static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+static int coda_vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
 {
 	struct coda_q_data *q_data;
 	struct vb2_queue *vq;
@@ -666,61 +667,62 @@  static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-				struct v4l2_format *f)
+static int coda_vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+				     struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
 
-	ret = vidioc_try_fmt_vid_cap(file, priv, f);
+	ret = coda_vidioc_try_fmt_vid_cap(file, priv, f);
 	if (ret)
 		return ret;
 
-	return vidioc_s_fmt(ctx, f);
+	return coda_vidioc_s_fmt(ctx, f);
 }
 
-static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
-				struct v4l2_format *f)
+static int coda_vidioc_s_fmt_vid_out(struct file *file, void *priv,
+				     struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
 
-	ret = vidioc_try_fmt_vid_out(file, priv, f);
+	ret = coda_vidioc_try_fmt_vid_out(file, priv, f);
 	if (ret)
 		return ret;
 
-	ret = vidioc_s_fmt(ctx, f);
+	ret = coda_vidioc_s_fmt(ctx, f);
 	if (ret)
 		ctx->colorspace = f->fmt.pix.colorspace;
 
 	return ret;
 }
 
-static int vidioc_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *reqbufs)
+static int coda_vidioc_reqbufs(struct file *file, void *priv,
+			       struct v4l2_requestbuffers *reqbufs)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
 }
 
-static int vidioc_querybuf(struct file *file, void *priv,
-			   struct v4l2_buffer *buf)
+static int coda_vidioc_querybuf(struct file *file, void *priv,
+				struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
 }
 
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+static int coda_vidioc_qbuf(struct file *file, void *priv,
+			    struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
 }
 
-static int vidioc_expbuf(struct file *file, void *priv,
-			 struct v4l2_exportbuffer *eb)
+static int coda_vidioc_expbuf(struct file *file, void *priv,
+			      struct v4l2_exportbuffer *eb)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
@@ -738,7 +740,8 @@  static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
 		(buf->sequence == (ctx->qsequence - 1)));
 }
 
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+static int coda_vidioc_dqbuf(struct file *file, void *priv,
+			     struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
@@ -758,24 +761,24 @@  static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 	return ret;
 }
 
-static int vidioc_create_bufs(struct file *file, void *priv,
-			      struct v4l2_create_buffers *create)
+static int coda_vidioc_create_bufs(struct file *file, void *priv,
+				   struct v4l2_create_buffers *create)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create);
 }
 
-static int vidioc_streamon(struct file *file, void *priv,
-			   enum v4l2_buf_type type)
+static int coda_vidioc_streamon(struct file *file, void *priv,
+				enum v4l2_buf_type type)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
 }
 
-static int vidioc_streamoff(struct file *file, void *priv,
-			    enum v4l2_buf_type type)
+static int coda_vidioc_streamoff(struct file *file, void *priv,
+				 enum v4l2_buf_type type)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
@@ -792,8 +795,8 @@  static int vidioc_streamoff(struct file *file, void *priv,
 	return ret;
 }
 
-static int vidioc_decoder_cmd(struct file *file, void *fh,
-			      struct v4l2_decoder_cmd *dc)
+static int coda_vidioc_decoder_cmd(struct file *file, void *fh,
+				   struct v4l2_decoder_cmd *dc)
 {
 	struct coda_ctx *ctx = fh_to_ctx(fh);
 
@@ -816,8 +819,8 @@  static int vidioc_decoder_cmd(struct file *file, void *fh,
 	return 0;
 }
 
-static int vidioc_subscribe_event(struct v4l2_fh *fh,
-				  const struct v4l2_event_subscription *sub)
+static int coda_vidioc_subscribe_event(struct v4l2_fh *fh,
+				       const struct v4l2_event_subscription *sub)
 {
 	switch (sub->type) {
 	case V4L2_EVENT_EOS:
@@ -828,32 +831,32 @@  static int vidioc_subscribe_event(struct v4l2_fh *fh,
 }
 
 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
-	.vidioc_querycap	= vidioc_querycap,
+	.vidioc_querycap	= coda_vidioc_querycap,
 
-	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt,
-	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_cap = coda_vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap	= coda_vidioc_g_fmt,
+	.vidioc_try_fmt_vid_cap	= coda_vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap	= coda_vidioc_s_fmt_vid_cap,
 
-	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
-	.vidioc_g_fmt_vid_out	= vidioc_g_fmt,
-	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
-	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
+	.vidioc_enum_fmt_vid_out = coda_vidioc_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out	= coda_vidioc_g_fmt,
+	.vidioc_try_fmt_vid_out	= coda_vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out	= coda_vidioc_s_fmt_vid_out,
 
-	.vidioc_reqbufs		= vidioc_reqbufs,
-	.vidioc_querybuf	= vidioc_querybuf,
+	.vidioc_reqbufs		= coda_vidioc_reqbufs,
+	.vidioc_querybuf	= coda_vidioc_querybuf,
 
-	.vidioc_qbuf		= vidioc_qbuf,
-	.vidioc_expbuf		= vidioc_expbuf,
-	.vidioc_dqbuf		= vidioc_dqbuf,
-	.vidioc_create_bufs	= vidioc_create_bufs,
+	.vidioc_qbuf		= coda_vidioc_qbuf,
+	.vidioc_expbuf		= coda_vidioc_expbuf,
+	.vidioc_dqbuf		= coda_vidioc_dqbuf,
+	.vidioc_create_bufs	= coda_vidioc_create_bufs,
 
-	.vidioc_streamon	= vidioc_streamon,
-	.vidioc_streamoff	= vidioc_streamoff,
+	.vidioc_streamon	= coda_vidioc_streamon,
+	.vidioc_streamoff	= coda_vidioc_streamoff,
 
-	.vidioc_decoder_cmd	= vidioc_decoder_cmd,
+	.vidioc_decoder_cmd	= coda_vidioc_decoder_cmd,
 
-	.vidioc_subscribe_event = vidioc_subscribe_event,
+	.vidioc_subscribe_event = coda_vidioc_subscribe_event,
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };