perf/arm-cmn: Validate cycles events fully

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DTC cycle count events don't have anything to validate or initialise in
themselves, but we should not forget to still validate their whole group
context. Otherwise, we may fail to correctly reject a contrived group
containing an impossible number of cycles events.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/3124e8c276a1f513c1a415dc839ca4181b3c8bc8.1680522545.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>

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Robin Murphy 2023-04-03 12:49:05 +01:00 • committed by Will Deacon

parent 4248d043e4

commit 23b2fd8394

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drivers/perf/arm-cmn.c

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