coresight: etm4x: moving etm_drvdata::enable to atomic field

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Similarly to ETMv3, moving etmv4_drvdata::enable to an atomic
type that gives the 'mode' of a tracer and prevents multiple,
simultanious access by different subsystems.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mathieu Poirier 2016-04-05 11:53:47 -06:00 • committed by Greg Kroah-Hartman

parent 66bbbb7754

commit c38a9ec2b2

2 changed files with 63 additions and 11 deletions

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69

drivers/hwtracing/coresight/coresight-etm4x.c

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5

drivers/hwtracing/coresight/coresight-etm4x.h

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