diff mbox series

[v2,2/3] media: usb: pvrusb2: Fix Wcast-function-type-strict warnings

Message ID 20240226-fix-clang-warnings-v2-2-fa1bc931d17e@chromium.org
State New
Headers
Series media: Fix warnings building with LLVM=1 |

Commit Message

Ricardo Ribalda Feb. 26, 2024, 5:32 p.m. UTC 
  Building with LLVM=1 throws the following warning:
drivers/media/usb/pvrusb2/pvrusb2-context.c:110:6: warning: cast from 'void (*)(struct pvr2_context *)' to 'void (*)(void *)' converts to incompatible function type [-Wcast-function-type-strict]
drivers/media/usb/pvrusb2/pvrusb2-v4l2.c:1070:30: warning: cast from 'void (*)(struct pvr2_v4l2_fh *)' to 'pvr2_stream_callback' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] drivers/media/usb/pvrusb2/pvrusb2-dvb.c:152:6: warning: cast from 'void (*)(struct pvr2_dvb_adapter *)' to 'pvr2_stream_callback' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict]

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/usb/pvrusb2/pvrusb2-context.c | 5 +++--
 drivers/media/usb/pvrusb2/pvrusb2-dvb.c     | 7 ++++---
 drivers/media/usb/pvrusb2/pvrusb2-v4l2.c    | 7 ++++---
 3 files changed, 11 insertions(+), 8 deletions(-)

Comments

Hans Verkuil Feb. 28, 2024, 8:01 a.m. UTC | #1 
On 26/02/2024 18:32, Ricardo Ribalda wrote:
> Building with LLVM=1 throws the following warning:
> drivers/media/usb/pvrusb2/pvrusb2-context.c:110:6: warning: cast from 'void (*)(struct pvr2_context *)' to 'void (*)(void *)' converts to incompatible function type [-Wcast-function-type-strict]
> drivers/media/usb/pvrusb2/pvrusb2-v4l2.c:1070:30: warning: cast from 'void (*)(struct pvr2_v4l2_fh *)' to 'pvr2_stream_callback' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict] drivers/media/usb/pvrusb2/pvrusb2-dvb.c:152:6: warning: cast from 'void (*)(struct pvr2_dvb_adapter *)' to 'pvr2_stream_callback' (aka 'void (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict]

This patch from Arnd has already been merged, superseding your patch:

https://lore.kernel.org/linux-media/20240213100439.457403-1-arnd@kernel.org/

Marking your patch as Obsolete in patchwork.

Regards,

	Hans

> 
> Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>  drivers/media/usb/pvrusb2/pvrusb2-context.c | 5 +++--
>  drivers/media/usb/pvrusb2/pvrusb2-dvb.c     | 7 ++++---
>  drivers/media/usb/pvrusb2/pvrusb2-v4l2.c    | 7 ++++---
>  3 files changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/media/usb/pvrusb2/pvrusb2-context.c b/drivers/media/usb/pvrusb2/pvrusb2-context.c
> index 1764674de98bc..16edabda191c4 100644
> --- a/drivers/media/usb/pvrusb2/pvrusb2-context.c
> +++ b/drivers/media/usb/pvrusb2/pvrusb2-context.c
> @@ -90,8 +90,9 @@ static void pvr2_context_destroy(struct pvr2_context *mp)
>  }
>  
>  
> -static void pvr2_context_notify(struct pvr2_context *mp)
> +static void pvr2_context_notify(void *data)
>  {
> +	struct pvr2_context *mp = data;
>  	pvr2_context_set_notify(mp,!0);
>  }
>  
> @@ -107,7 +108,7 @@ static void pvr2_context_check(struct pvr2_context *mp)
>  			   "pvr2_context %p (initialize)", mp);
>  		/* Finish hardware initialization */
>  		if (pvr2_hdw_initialize(mp->hdw,
> -					(void (*)(void *))pvr2_context_notify,
> +					pvr2_context_notify,
>  					mp)) {
>  			mp->video_stream.stream =
>  				pvr2_hdw_get_video_stream(mp->hdw);
> diff --git a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
> index 26811efe0fb58..8b9f1a09bd53d 100644
> --- a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
> +++ b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
> @@ -88,8 +88,9 @@ static int pvr2_dvb_feed_thread(void *data)
>  	return stat;
>  }
>  
> -static void pvr2_dvb_notify(struct pvr2_dvb_adapter *adap)
> +static void pvr2_dvb_notify(void *data)
>  {
> +	struct pvr2_dvb_adapter *adap = data;
>  	wake_up(&adap->buffer_wait_data);
>  }
>  
> @@ -148,8 +149,8 @@ static int pvr2_dvb_stream_do_start(struct pvr2_dvb_adapter *adap)
>  		if (!(adap->buffer_storage[idx])) return -ENOMEM;
>  	}
>  
> -	pvr2_stream_set_callback(pvr->video_stream.stream,
> -				 (pvr2_stream_callback) pvr2_dvb_notify, adap);
> +	pvr2_stream_set_callback(pvr->video_stream.stream, pvr2_dvb_notify,
> +				 adap);
>  
>  	ret = pvr2_stream_set_buffer_count(stream, PVR2_DVB_BUFFER_COUNT);
>  	if (ret < 0) return ret;
> diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> index c04ab7258d645..590f80949bbfc 100644
> --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
> @@ -1032,9 +1032,10 @@ static int pvr2_v4l2_open(struct file *file)
>  	return 0;
>  }
>  
> -
> -static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
> +static void pvr2_v4l2_notify(void *data)
>  {
> +	struct pvr2_v4l2_fh *fhp = data;
> +
>  	wake_up(&fhp->wait_data);
>  }
>  
> @@ -1067,7 +1068,7 @@ static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
>  
>  	hdw = fh->channel.mc_head->hdw;
>  	sp = fh->pdi->stream->stream;
> -	pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
> +	pvr2_stream_set_callback(sp, pvr2_v4l2_notify, fh);
>  	pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
>  	if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
>  	return pvr2_ioread_set_enabled(fh->rhp,!0);
>
diff mbox series

Patch

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-context.c b/drivers/media/usb/pvrusb2/pvrusb2-context.c
index 1764674de98bc..16edabda191c4 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-context.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-context.c
@@ -90,8 +90,9 @@  static void pvr2_context_destroy(struct pvr2_context *mp)
 }
 
 
-static void pvr2_context_notify(struct pvr2_context *mp)
+static void pvr2_context_notify(void *data)
 {
+	struct pvr2_context *mp = data;
 	pvr2_context_set_notify(mp,!0);
 }
 
@@ -107,7 +108,7 @@  static void pvr2_context_check(struct pvr2_context *mp)
 			   "pvr2_context %p (initialize)", mp);
 		/* Finish hardware initialization */
 		if (pvr2_hdw_initialize(mp->hdw,
-					(void (*)(void *))pvr2_context_notify,
+					pvr2_context_notify,
 					mp)) {
 			mp->video_stream.stream =
 				pvr2_hdw_get_video_stream(mp->hdw);
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
index 26811efe0fb58..8b9f1a09bd53d 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
@@ -88,8 +88,9 @@  static int pvr2_dvb_feed_thread(void *data)
 	return stat;
 }
 
-static void pvr2_dvb_notify(struct pvr2_dvb_adapter *adap)
+static void pvr2_dvb_notify(void *data)
 {
+	struct pvr2_dvb_adapter *adap = data;
 	wake_up(&adap->buffer_wait_data);
 }
 
@@ -148,8 +149,8 @@  static int pvr2_dvb_stream_do_start(struct pvr2_dvb_adapter *adap)
 		if (!(adap->buffer_storage[idx])) return -ENOMEM;
 	}
 
-	pvr2_stream_set_callback(pvr->video_stream.stream,
-				 (pvr2_stream_callback) pvr2_dvb_notify, adap);
+	pvr2_stream_set_callback(pvr->video_stream.stream, pvr2_dvb_notify,
+				 adap);
 
 	ret = pvr2_stream_set_buffer_count(stream, PVR2_DVB_BUFFER_COUNT);
 	if (ret < 0) return ret;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
index c04ab7258d645..590f80949bbfc 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
@@ -1032,9 +1032,10 @@  static int pvr2_v4l2_open(struct file *file)
 	return 0;
 }
 
-
-static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
+static void pvr2_v4l2_notify(void *data)
 {
+	struct pvr2_v4l2_fh *fhp = data;
+
 	wake_up(&fhp->wait_data);
 }
 
@@ -1067,7 +1068,7 @@  static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
 
 	hdw = fh->channel.mc_head->hdw;
 	sp = fh->pdi->stream->stream;
-	pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
+	pvr2_stream_set_callback(sp, pvr2_v4l2_notify, fh);
 	pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
 	if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
 	return pvr2_ioread_set_enabled(fh->rhp,!0);