From: Bert Karwatzki spasswolf@web.de
[ Upstream commit 70bad345e622c23bb530016925c936ab04a646ac ]
When the kernel is comiled with CONFIG_IRQ_REMAP=y but without CONFIG_IOMMU_INTEL compilation fails since commit def054b01a8678 with an undefined reference to device_rbtree_find(). This patch makes sure that intel specific code is only compiled with CONFIG_IOMMU_INTEL=y.
Signed-off-by: Bert Karwatzki spasswolf@web.de Fixes: 80a9b50c0b9e ("iommu/vt-d: Improve ITE fault handling if target device isn't present") Reviewed-by: Lu Baolu baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20240307194419.15801-1-spasswolf@web.de Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/Kconfig | 2 +- drivers/iommu/intel/Makefile | 2 ++ drivers/iommu/irq_remapping.c | 3 ++- 3 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 7673bb82945b6..a66f7df7a2b0b 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -195,7 +195,7 @@ source "drivers/iommu/iommufd/Kconfig" config IRQ_REMAP bool "Support for Interrupt Remapping" depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI - select DMAR_TABLE + select DMAR_TABLE if INTEL_IOMMU help Supports Interrupt remapping for IO-APIC and MSI devices. To use x2apic mode in the CPU's which support x2APIC enhancements or diff --git a/drivers/iommu/intel/Makefile b/drivers/iommu/intel/Makefile index 5dabf081a7793..5402b699a1229 100644 --- a/drivers/iommu/intel/Makefile +++ b/drivers/iommu/intel/Makefile @@ -5,5 +5,7 @@ obj-$(CONFIG_DMAR_TABLE) += trace.o cap_audit.o obj-$(CONFIG_DMAR_PERF) += perf.o obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += debugfs.o obj-$(CONFIG_INTEL_IOMMU_SVM) += svm.o +ifdef CONFIG_INTEL_IOMMU obj-$(CONFIG_IRQ_REMAP) += irq_remapping.o +endif obj-$(CONFIG_INTEL_IOMMU_PERF_EVENTS) += perfmon.o diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 83314b9d8f38b..ee59647c20501 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -99,7 +99,8 @@ int __init irq_remapping_prepare(void) if (disable_irq_remap) return -ENOSYS;
- if (intel_irq_remap_ops.prepare() == 0) + if (IS_ENABLED(CONFIG_INTEL_IOMMU) && + intel_irq_remap_ops.prepare() == 0) remap_ops = &intel_irq_remap_ops; else if (IS_ENABLED(CONFIG_AMD_IOMMU) && amd_iommu_irq_ops.prepare() == 0)