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022aa1a81b
For software sources (i.e STM), there could be multiple agents generating the trace data, unlike the ETMs. So we need to properly do the accounting for the active number of users to disable the device when the last user goes away. Right now, the reference counting is broken for sources as we skip the actions when we detect that the source is enabled. This patch fixes the problem by adding the refcounting for software sources, even when they are enabled. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Reported-by: Robert Walker <robert.walker@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.