This is a note to let you know that I've just added the patch titled soundwire: debugfs: use controller id instead of link_id to the 5.11-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-debugfs-use-controller-id-instead-of-link_id.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 6d5e7af1f6f5924de5dd1ebe97675c2363100878 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> Date: Fri, 15 Jan 2021 16:25:59 +0000 Subject: soundwire: debugfs: use controller id instead of link_id From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> commit 6d5e7af1f6f5924de5dd1ebe97675c2363100878 upstream. link_id can be zero and if we have multiple controller instances in a system like Qualcomm debugfs will end-up with duplicate namespace resulting in incorrect debugfs entries. Using id should give a unique debugfs directory entry and should fix below warning too. "debugfs: Directory 'master-0' with parent 'soundwire' already present!" Fixes: bf03473d5bcc ("soundwire: add debugfs support") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210115162559.20869-1-srinivas.kandagatla@xxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/soundwire/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/soundwire/debugfs.c +++ b/drivers/soundwire/debugfs.c @@ -19,7 +19,7 @@ void sdw_bus_debugfs_init(struct sdw_bus return; /* create the debugfs master-N */ - snprintf(name, sizeof(name), "master-%d", bus->link_id); + snprintf(name, sizeof(name), "master-%d", bus->id); bus->debugfs = debugfs_create_dir(name, sdw_debugfs_root); } Patches currently in stable-queue which might be from srinivas.kandagatla@xxxxxxxxxx are queue-5.11/asoc-qcom-remove-useless-debug-print.patch queue-5.11/soundwire-debugfs-use-controller-id-instead-of-link_id.patch