Re: [PATCH] iommu/arm: Allow disabling Qualcomm support in arm_smmu_v3

On Mon, Mar 10, 2025 at 9:51 AM Aaron Kling webgeek1234@gmail.com wrote:

I am working with the android kernel. The more recent setup enables a minimal setup of configs in a core kernel that works across all supported arch's, then requires further support to all be modules. I specifically am working with tegra devices. But as ARCH_QCOM is enabled in the core defconfig, when I build smmuv3 as a module, I end up with a dependency on qcom-scm which gets built as an additional module. And it would be preferable to not require qcom modules to boot a tegra device.

If you want to build arm_smmu_v3.ko, you'd have

# CONFIG_ARM_SMMU is not set CONFIG_ARM_SMMU_V3=m

in your .config. I don't see how this would enable ARM_SMMU_QCOM or QCOM_SCM.