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coresight: etm4x: Add support for handling errors
authorSuzuki K Poulose <suzuki.poulose@arm.com>
Thu, 20 Sep 2018 19:18:07 +0000 (13:18 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 25 Sep 2018 18:09:18 +0000 (20:09 +0200)
commite006d89abedd5d04e6033c5614e1bf160b252615
tree34a2e6bc63af425101d8082a10eebaa6c39db874
parent1d364034aaf2fcc7bc23cac2ffde52747376337e
coresight: etm4x: Add support for handling errors

Add support for handling errors in enabling the component.
The ETM is enabled via cross call to owner CPU. Make
necessary changes to report the error back from the cross
call.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
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>
drivers/hwtracing/coresight/coresight-etm4x.c