This is a note to let you know that I've just added the patch titled spi: dw: Make debugfs name unique between instances to the 3.18-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: spi-dw-make-debugfs-name-unique-between-instances.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Fri Aug 4 13:41:01 PDT 2017 From: Phil Reid <preid@xxxxxxxxxxxxxxxxx> Date: Thu, 22 Dec 2016 17:18:12 +0800 Subject: spi: dw: Make debugfs name unique between instances From: Phil Reid <preid@xxxxxxxxxxxxxxxxx> [ Upstream commit 13288bdf4adbaa6bd1267f10044c1bc25d90ce7f ] Some system have multiple dw devices. Currently the driver uses a fixed name for the debugfs dir. Append dev name to the debugfs dir name to make it unique. Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/spi/spi-dw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -118,7 +118,10 @@ static const struct file_operations dw_s static int dw_spi_debugfs_init(struct dw_spi *dws) { - dws->debugfs = debugfs_create_dir("dw_spi", NULL); + char name[128]; + + snprintf(name, 128, "dw_spi-%s", dev_name(&dws->master->dev)); + dws->debugfs = debugfs_create_dir(name, NULL); if (!dws->debugfs) return -ENOMEM; Patches currently in stable-queue which might be from preid@xxxxxxxxxxxxxxxxx are queue-3.18/spi-dw-make-debugfs-name-unique-between-instances.patch