patch "mei: bus: prefix device names on bus with the bus name" added to char-misc-next

patch "mei: bus: prefix device names on bus with the bus name" added to char-misc-next

[gregkh]

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

    mei: bus: prefix device names on bus with the bus name

to my char-misc git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


From 7a2b9e6ec84588b0be65cc0ae45a65bac431496b Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Tue, 5 Nov 2019 17:05:13 +0200
Subject: mei: bus: prefix device names on bus with the bus name

Add parent device name to the name of devices on bus to avoid
device names collisions for same client UUID available
from different MEI heads. Namely this prevents sysfs collision under
/sys/bus/mei/device/

In the device part leave just UUID other parameters that are
required for device matching are not required here and are
just bloating the name.

Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20191105150514.14010-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/bus.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 985bd4fd3328..53bb394ccba6 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -873,15 +873,16 @@ static const struct device_type mei_cl_device_type = {
 
 /**
  * mei_cl_bus_set_name - set device name for me client device
+ *  <controller>-<client device>
+ *  Example: 0000:00:16.0-55213584-9a29-4916-badf-0fb7ed682aeb
  *
  * @cldev: me client device
  */
 static inline void mei_cl_bus_set_name(struct mei_cl_device *cldev)
 {
-	dev_set_name(&cldev->dev, "mei:%s:%pUl:%02X",
-		     cldev->name,
-		     mei_me_cl_uuid(cldev->me_cl),
-		     mei_me_cl_ver(cldev->me_cl));
+	dev_set_name(&cldev->dev, "%s-%pUl",
+		     dev_name(cldev->bus->dev),
+		     mei_me_cl_uuid(cldev->me_cl));
 }
 
 /**
-- 
2.23.0