iommu/arm-smmu-qcom: Don't build debug features as a kernel module

The Qualcomm TBU debug support introduced by 414ecb030870
("iommu/arm-smmu-qcom-debug: Add support for TBUs") provides its own
driver initialisation function, which breaks the link when the core SMMU
driver is built as a module:

  ld.lld: error: duplicate symbol: init_module
  >>> defined at arm-smmu.c
  >>>            drivers/iommu/arm/arm-smmu/arm-smmu.o:(init_module)
  >>> defined at arm-smmu-qcom-debug.c
  >>>            drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.o:(.init.text+0x4)

Since we're late in the cycle, just make the debug features depend on a
non-modular SMMU driver for now while the initialisation is reworked to
hang off qcom_smmu_impl_init().

Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 0ac80e1094f3a4da7b80580f440759b3edde1fa6..13d9cb4ba52c5d4c26730612687c5cf208df0305 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -376,7 +376,7 @@ config ARM_SMMU_QCOM
 
 config ARM_SMMU_QCOM_DEBUG
        bool "ARM SMMU QCOM implementation defined debug support"
-       depends on ARM_SMMU_QCOM
+       depends on ARM_SMMU_QCOM=y
        help
          Support for implementation specific debug features in ARM SMMU
          hardware found in QTI platforms. This include support for