litmus-rt-ext-res.git/drivers/hwtracing/intel_th, branch EXT-RES

intel_th: Don't leak module refcount on failure to activate

2017-03-30T07:41:27+00:00

commit e609ccef5222c73b46b322be7d3796d60bff353d upstream.

Output 'activation' may fail for the reasons of the output driver,
for example, if msc's buffer is not allocated. We forget, however,
to drop the module reference in this case. So each attempt at
activation in this case leaks a reference, preventing the module
from ever unloading.

This patch adds the missing module_put() in the activation error
path.

Signed-off-by: Alexander Shishkin 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'stm-for-greg-20160714' of git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm into char-misc-next

2016-07-15T05:19:11+00:00

Alexander writes:

intel_th: Fixes -t://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git
tags/stm-for-greg-20160714
stable

These are:
 * a fix for a modprobe time deadlock
 * a new PCI ID for Kaby Lake PCH-H

intel_th: pci: Add Kaby Lake PCH-H support

2016-07-14T10:16:56+00:00

This adds Intel(R) Trace Hub PCI ID for Kaby Lake PCH-H.

Signed-off-by: Alexander Shishkin 
Cc:

intel_th: Fix a deadlock in modprobing

2016-07-14T10:02:39+00:00

Driver initialization tries to request a hub (GTH) driver module from
its probe callback, resulting in a deadlock.

This patch solves the problem by adding a deferred work for requesting
the hub module.

Signed-off-by: Alexander Shishkin 
Cc:  # 4.4.x-

intel_th: Document output device callbacks

2016-07-01T08:01:13+00:00

'output' type device callbacks are missing from the kerneldoc description
of the 'intel_th_driver' structure. Fix this.

Signed-off-by: Alexander Shishkin

intel_th: gth: Fix a source comment

2016-07-01T08:01:02+00:00

There's a kerneldoc comment that'd been derived from another one by way
of copying-and-pasting but hadn't been subsequently amended to reflect
the purpose of the function. Fix this.

Signed-off-by: Alexander Shishkin

intel_th: Add runtime power management handling

2016-07-01T08:01:01+00:00

Currently, an Intel TH (pci) device will be always active, because the
devices on the 'intel_th' bus don't implement runtime pm to track their
usage.

To address this, this patch adds runtime pm support to the 'intel_th'
bus and some additional bits for the hub. The 'output' type device is
in use while a capture is active; the 'source' type device (STH) relies
on its child stm class device for runtime pm tracking.

Signed-off-by: Alexander Shishkin

Merge tag 'char-misc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2016-05-21T04:20:31+00:00

Pull char / misc driver updates from Greg KH:
 "Here's the big char and misc driver update for 4.7-rc1.

  Lots of different tiny driver subsystems have updates here with new
  drivers and functionality.  Details in the shortlog.

  All have been in linux-next with no reported issues for a while"

* tag 'char-misc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (125 commits)
  mcb: Delete num_cells variable which is not required
  mcb: Fixed bar number assignment for the gdd
  mcb: Replace ioremap and request_region with the devm version
  mcb: Implement bus->dev.release callback
  mcb: export bus information via sysfs
  mcb: Correctly initialize the bus's device
  mei: bus: call mei_cl_read_start under device lock
  coresight: etb10: adjust read pointer only when needed
  coresight: configuring ETF in FIFO mode when acting as link
  coresight: tmc: implementing TMC-ETF AUX space API
  coresight: moving struct cs_buffers to header file
  coresight: tmc: keep track of memory width
  coresight: tmc: make sysFS and Perf mode mutually exclusive
  coresight: tmc: dump system memory content only when needed
  coresight: tmc: adding mode of operation for link/sinks
  coresight: tmc: getting rid of multiple read access
  coresight: tmc: allocating memory when needed
  coresight: tmc: making prepare/unprepare functions generic
  coresight: tmc: splitting driver in ETB/ETF and ETR components
  coresight: tmc: cleaning up header file
  ...

mm: rename _count, field of the struct page, to _refcount

2016-05-20T02:12:14+00:00

Many developers already know that field for reference count of the
struct page is _count and atomic type.  They would try to handle it
directly and this could break the purpose of page reference count
tracepoint.  To prevent direct _count modification, this patch rename it
to _refcount and add warning message on the code.  After that, developer
who need to handle reference count will find that field should not be
accessed directly.

[akpm@linux-foundation.org: fix comments, per Vlastimil]
[akpm@linux-foundation.org: Documentation/vm/transhuge.txt too]
[sfr@canb.auug.org.au: sync ethernet driver changes]
Signed-off-by: Joonsoo Kim 
Signed-off-by: Stephen Rothwell 
Cc: Vlastimil Babka 
Cc: Hugh Dickins 
Cc: Johannes Berg 
Cc: "David S. Miller" 
Cc: Sunil Goutham 
Cc: Chris Metcalf 
Cc: Manish Chopra 
Cc: Yuval Mintz 
Cc: Tariq Toukan 
Cc: Saeed Mahameed 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

intel_th: pci: Add Broxton-M SOC support

2016-04-19T19:54:05+00:00

This adds Intel(R) Trace Hub PCI ID for Broxton-M SOC.

Signed-off-by: Alexander Shishkin 
Reviewed-by: Laurent Fert