[PATCH] ALSA: seq: Notify client and port info changes

[PATCH] ALSA: seq: Notify client and port info changes

[Takashi Iwai]

It was supposed to be notified when a sequencer client info and a port
info has changed (via SNDRV_SEQ_EVENT_CLIENT_CHANGE and
SNDRV_SEQ_EVENT_PORT_CHANGE event, respectively), and there are
already helper functions.  But those aren't really sent from the
driver so far, except for the recent support of UMP, simply due to the
lack of implementations.

This patch adds the missing notifications at updating the client and
the port info.  The formerly added notification for UMP is dropped
because it's handled now in the port info side.

Reported-by: Mark Lentczner <mark@glyphic.com>
Link: https://lore.kernel.org/CAPnksqRok7xGa4bxq9WWimVV=28-7_j628OmrWLS=S0=hzaTHQ@mail.gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/seq/seq_clientmgr.c  | 7 +++++++
 sound/core/seq/seq_ump_client.c | 2 --
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 3930e2f9082f..fe2d7f901610 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1290,6 +1290,10 @@ static int snd_seq_ioctl_set_client_info(struct snd_seq_client *client,
 		client->midi_version = client_info->midi_version;
 	memcpy(client->event_filter, client_info->event_filter, 32);
 	client->group_filter = client_info->group_filter;
+
+	/* notify the change */
+	snd_seq_system_client_ev_client_change(client->number);
+
 	return 0;
 }
 
@@ -1413,6 +1417,9 @@ static int snd_seq_ioctl_set_port_info(struct snd_seq_client *client, void *arg)
 	if (port) {
 		snd_seq_set_port_info(port, info);
 		snd_seq_port_unlock(port);
+		/* notify the change */
+		snd_seq_system_client_ev_port_change(info->addr.client,
+						     info->addr.port);
 	}
 	return 0;
 }
diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c
index e5d3f4d206bf..22cac6997d30 100644
--- a/sound/core/seq/seq_ump_client.c
+++ b/sound/core/seq/seq_ump_client.c
@@ -272,8 +272,6 @@ static void update_port_infos(struct seq_ump_client *client)
 						new);
 		if (err < 0)
 			return;
-		/* notify to system port */
-		snd_seq_system_client_ev_port_change(client->seq_client, i);
 	}
 }
 
-- 
2.43.0