Mathieu Poirier 0efc646aa8 UPSTREAM: coresight: Properly address concurrency in sink::update() functions
(Upstream commit 0916447c87).

When operating in CPU-wide trace scenarios and working with an N:1
source/sink HW topology, update() functions need to be made atomic
in order to avoid racing with start and stop operations.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Robert Walker <robert.walker@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 140266694
Change-Id: If16c146cc4721acc005c7db3d88e57d38fe48ece
Signed-off-by: Yabin Cui <yabinc@google.com>
2019-11-06 14:05:03 -08:00
2019-10-29 09:41:48 +01:00
2019-10-11 19:13:57 +02:00
2019-10-01 08:51:37 +02:00
2019-08-06 20:08:18 +02:00
2019-10-29 09:41:48 +01:00
2019-10-29 09:41:48 +01:00
2019-11-06 13:21:58 +01:00
2019-11-06 13:21:58 +01:00
2019-10-11 19:13:57 +02:00
2019-11-06 13:21:58 +01:00
2019-10-17 15:33:07 -07:00
2019-11-06 13:21:58 +01:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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