Patch "ALSA: hda: add snd_hdac_stop_streams() helper" has been added to the 6.0-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    ALSA: hda: add snd_hdac_stop_streams() helper

to the 6.0-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-add-snd_hdac_stop_streams-helper.patch
and it can be found in the queue-6.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 258097b4b6bbdc8f0c1142495409bbe4b40a433a
Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Date:   Mon Sep 19 14:10:38 2022 +0200

    ALSA: hda: add snd_hdac_stop_streams() helper
    
    [ Upstream commit 24ad3835a6db4f8857975effa6bf47730371a5ff ]
    
    Minor code reuse, no functionality change.
    
    Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
    Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
    Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
    Reviewed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20220919121041.43463-6-pierre-louis.bossart@xxxxxxxxxxxxxxx
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
    Stable-dep-of: 171107237246 ("ASoC: Intel: Skylake: Fix driver hang during shutdown")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 797bf67a164d..ceaa7b7cfdc3 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -562,6 +562,7 @@ int snd_hdac_stream_set_params(struct hdac_stream *azx_dev,
 void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start);
 void snd_hdac_stream_clear(struct hdac_stream *azx_dev);
 void snd_hdac_stream_stop(struct hdac_stream *azx_dev);
+void snd_hdac_stop_streams(struct hdac_bus *bus);
 void snd_hdac_stop_streams_and_chip(struct hdac_bus *bus);
 void snd_hdac_stream_reset(struct hdac_stream *azx_dev);
 void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set,
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index f3582012d22f..eea22cf72aef 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -142,17 +142,28 @@ void snd_hdac_stream_stop(struct hdac_stream *azx_dev)
 }
 EXPORT_SYMBOL_GPL(snd_hdac_stream_stop);
 
+/**
+ * snd_hdac_stop_streams - stop all streams
+ * @bus: HD-audio core bus
+ */
+void snd_hdac_stop_streams(struct hdac_bus *bus)
+{
+	struct hdac_stream *stream;
+
+	list_for_each_entry(stream, &bus->stream_list, list)
+		snd_hdac_stream_stop(stream);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_stop_streams);
+
 /**
  * snd_hdac_stop_streams_and_chip - stop all streams and chip if running
  * @bus: HD-audio core bus
  */
 void snd_hdac_stop_streams_and_chip(struct hdac_bus *bus)
 {
-	struct hdac_stream *stream;
 
 	if (bus->chip_init) {
-		list_for_each_entry(stream, &bus->stream_list, list)
-			snd_hdac_stream_stop(stream);
+		snd_hdac_stop_streams(bus);
 		snd_hdac_bus_stop_chip(bus);
 	}
 }
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 75dcb14ff20a..0ff286b7b66b 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1033,10 +1033,8 @@ EXPORT_SYMBOL_GPL(azx_init_chip);
 void azx_stop_all_streams(struct azx *chip)
 {
 	struct hdac_bus *bus = azx_bus(chip);
-	struct hdac_stream *s;
 
-	list_for_each_entry(s, &bus->stream_list, list)
-		snd_hdac_stream_stop(s);
+	snd_hdac_stop_streams(bus);
 }
 EXPORT_SYMBOL_GPL(azx_stop_all_streams);