Re: [PATCH] driver/perf: Remove ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3

From: Robin Murphy
Date: Mon Feb 01 2021 - 06:49:14 EST


On 2021-02-01 10:24, John Garry wrote:
The ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3_PMU was added with the idea
that a SMMUv3 PMCG would only exist on a system with an associated SMMUv3.

However it is not the job of Kconfig to make these sorts of decisions (even
if it were true), so remove the dependency.

Reviewed-by: Robin Murphy <robin.murphy@xxxxxxx>

Signed-off-by: John Garry <john.garry@xxxxxxxxxx>

diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
index 3075cf171f78..77522e5efe11 100644
--- a/drivers/perf/Kconfig
+++ b/drivers/perf/Kconfig
@@ -62,7 +62,7 @@ config ARM_PMU_ACPI
config ARM_SMMU_V3_PMU
tristate "ARM SMMUv3 Performance Monitors Extension"
- depends on ARM64 && ACPI && ARM_SMMU_V3
+ depends on ARM64 && ACPI
help
Provides support for the ARM SMMUv3 Performance Monitor Counter
Groups (PMCG), which provide monitoring of transactions passing