Patch "soundwire: bus: add better dev_dbg to track complete() calls" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    soundwire: bus: add better dev_dbg to track complete() calls

to the 5.10-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:
     soundwire-bus-add-better-dev_dbg-to-track-complete-c.patch
and it can be found in the queue-5.10 subdirectory.

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



commit 45c65ae606247cb635ae0300f98b651bce8da65b
Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Date:   Tue Jan 26 16:54:02 2021 +0800

    soundwire: bus: add better dev_dbg to track complete() calls
    
    [ Upstream commit f1b690261247c9895f7a4b05d14a4026739134eb ]
    
    Add a dev_dbg() log for both enumeration and initialization completion
    to better track suspend-resume issues.
    
    Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
    Reviewed-by: Rander Wang <rander.wang@xxxxxxxxx>
    Reviewed-by: Chao Song <chao.song@xxxxxxxxx>
    Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20210126085402.4264-1-yung-chuan.liao@xxxxxxxxxxxxxxx
    Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
    Stable-dep-of: c40d6b3249b1 ("soundwire: fix enumeration completion")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 3317a02bcc170..9c7c8fa7f53e4 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -797,7 +797,7 @@ static void sdw_modify_slave_status(struct sdw_slave *slave,
 
 	if (status == SDW_SLAVE_UNATTACHED) {
 		dev_dbg(&slave->dev,
-			"%s: initializing completion for Slave %d\n",
+			"%s: initializing enumeration and init completion for Slave %d\n",
 			__func__, slave->dev_num);
 
 		init_completion(&slave->enumeration_complete);
@@ -806,7 +806,7 @@ static void sdw_modify_slave_status(struct sdw_slave *slave,
 	} else if ((status == SDW_SLAVE_ATTACHED) &&
 		   (slave->status == SDW_SLAVE_UNATTACHED)) {
 		dev_dbg(&slave->dev,
-			"%s: signaling completion for Slave %d\n",
+			"%s: signaling enumeration completion for Slave %d\n",
 			__func__, slave->dev_num);
 
 		complete(&slave->enumeration_complete);
@@ -1734,8 +1734,13 @@ int sdw_handle_slave_status(struct sdw_bus *bus,
 		if (ret)
 			dev_err(slave->bus->dev,
 				"Update Slave status failed:%d\n", ret);
-		if (attached_initializing)
+		if (attached_initializing) {
+			dev_dbg(&slave->dev,
+				"%s: signaling initialization completion for Slave %d\n",
+				__func__, slave->dev_num);
+
 			complete(&slave->initialization_complete);
+		}
 	}
 
 	return ret;