linux-toradex.git/drivers/misc/mei/bus.c, branch v4.5

mei: bus: set the device name before running fixup

2015-10-29T00:02:16+00:00

The mei bus fixup use dev_xxx services for printing
to kernel log so we need to setup the device name
prior to running fixup hooks.

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: use correct lock ordering

2015-10-29T00:02:16+00:00

The correct lock order is
  cl_bus_lock
    device_lock
      me_clients_rwsem

This order was violated in bus rescan and remove routines
when me_client_rwsem was locked before cl_bus_lock.

Chain exists of:
[    4.321653]   &dev->device_lock --> &dev->me_clients_rwsem -->
&dev->cl_bus_lock
[    4.321653]
[    4.321679]  Possible unsafe locking scenario:
[    4.321679]
[    4.321693]        CPU0                    CPU1
[    4.321701]        ----                    ----
[    4.321709]   lock(&dev->cl_bus_lock);
[    4.321720]
lock(&dev->me_clients_rwsem);
[    4.321733]                                lock(&dev->cl_bus_lock);
[    4.321745]   lock(&dev->device_lock);
[    4.321755]
[    4.321755]  *** DEADLOCK ***
[    4.321755]

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: fix c&p issue in the kdoc

2015-10-18T04:45:05+00:00

s/send/receive/
The buffer in the receive function is
not used for sending

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: use mei_cl_bus_ prefix consistently

2015-09-21T02:31:10+00:00

Use mei_cl_bus_ for internal bus function consistently.

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: use mei_cldev_ prefix for the API functions

2015-09-21T02:31:10+00:00

Use mei_cldev_ prefix for all mei client bus api functions
in order to resolve prefix conflict with functions that handle
client function and are defined in client.c

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: export mei_cldev_enabled function

2015-09-21T02:31:09+00:00

Let me client device driver query of the device is connected
and hence enabled.

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: export uuid and protocol version to mei_cl bus drivers

2015-09-21T02:30:10+00:00

Export the uuid and the protocol version of the underlying me client
for me client bus drivers usage.

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: add client protocol version to the device alias

2015-09-21T02:30:10+00:00

The device alias now looks like mei:S:uuid:N:*
In that way we can bind different drivers to clients with
different protocol versions if required.

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: bus: export client protocol version

2015-09-21T02:30:10+00:00

export me client protocol version to sysfs and uevent

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

mei: make modules.alias UUID information easier to read

2015-09-21T02:30:09+00:00

scripts/mod/file2alias.c:add_uuid()  convert UUID into a single string
which does not conform to the standard little endian UUID formatting.
This patch changes add_uuid() to output same format as %pUL and modifies
the mei driver to match the change.

Signed-off-by: Prarit Bhargava 
Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman