d52c9750f1
When using coresight from the perf interface sinks are specified as part of the perf command line. As such the sink needs to be disabled once it has been acknowledged by the coresight framework. Otherwise the sink stays enabled, which may interfere with other sessions. This patch removes the sink selection check from the build path process and make it a function on it's own. The function is then used when operating from sysFS or perf to determine what sink has been selected. If operated from perf the status of the "enable_sink" flag is reset so that concurrent session can use a different sink. When used from sysFS the status of the flag is left untouched since users have full control. The implementation doesn't handle a scenario where a sink has been enabled from sysFS and another sink is selected from the perf command line as both modes of operation are mutually exclusive. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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