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92c1d360dc
linux/drivers/iommu
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Will Deacon 92c1d360dc iommu/arm-smmu-v3: Return -EBUSY when trying to re-add a device 
Although we WARN in arm_smmu_add_device() if the device being added has
been added already without a subsequent call to arm_smmu_remove_device(),
we still continue half-heartedly, initialising the stream-table for any
new StreamIDs that may have magically appeared and re-establishing device
links that should still be there from last time.

Given that calling ->add_device() twice without removing the device in the
meantime is indicative of an error in the caller, just return -EBUSY after
warning.

Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Jean Philippe-Brucker <jean-philippe@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
2020-01-15 16:30:28 +00:00
..
amd_iommu_debugfs.c
amd_iommu_init.c
amd_iommu_proto.h
amd_iommu_quirks.c iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41 2019-10-30 10:24:03 +01:00
amd_iommu_types.h Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next 2019-11-12 17:11:25 +01:00
amd_iommu_v2.c
amd_iommu.c IOMMU Updates for Linux v5.5 2019-12-02 11:05:00 -08:00
amd_iommu.h
arm-smmu-impl.c iommu/arm-smmu: Rename public #defines under ARM_SMMU_ namespace 2020-01-10 15:52:25 +00:00
arm-smmu-qcom.c iommu: arm-smmu-impl: Add sdm845 implementation hook 2019-11-04 17:48:37 +00:00
arm-smmu-v3.c iommu/arm-smmu-v3: Return -EBUSY when trying to re-add a device 2020-01-15 16:30:28 +00:00
arm-smmu.c iommu/arm-smmu: Improve SMR mask test 2020-01-10 16:09:58 +00:00
arm-smmu.h iommu/io-pgtable-arm: Rationalise VTCR handling 2020-01-10 15:52:25 +00:00
dma-iommu.c iommu/dma: Relax locking in iommu_dma_prepare_msi() 2019-12-18 17:41:36 +01:00
dmar.c iommu/vt-d: Turn off translations at shutdown 2019-11-11 16:07:13 +01:00
exynos-iommu.c
fsl_pamu_domain.c
fsl_pamu_domain.h
fsl_pamu.c
fsl_pamu.h
hyperv-iommu.c
intel_irq_remapping.c
intel-iommu-debugfs.c
intel-iommu.c iommu/vt-d: Allocate reserved region for ISA with correct permission 2019-12-17 11:48:18 +01:00
intel-pasid.c
intel-pasid.h
intel-svm.c iommu/vt-d: Remove incorrect PSI capability check 2019-12-18 16:18:34 +01:00
intel-trace.c
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Prepare for TTBR1 usage 2020-01-10 15:52:25 +00:00
io-pgtable.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
ioasid.c
iommu-debugfs.c
iommu-sysfs.c drivers/iommu: Export core IOMMU API symbols to permit modular drivers 2019-12-23 14:06:05 +01:00
iommu-traces.c
iommu.c drivers/iommu: Allow IOMMU bus ops to be unregistered 2019-12-23 14:06:05 +01:00
iova.c iommu/iova: Init the struct iova to fix the possible memleak 2019-12-17 11:13:20 +01:00
ipmmu-vmsa.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
irq_remapping.c
irq_remapping.h
Kconfig iommu/arm-smmu: Allow building as a module 2019-12-23 14:06:05 +01:00
Makefile iommu/arm-smmu: Allow building as a module 2019-12-23 14:06:05 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
msm_iommu.h
mtk_iommu_v1.c
mtk_iommu.c iommu/io-pgtable-arm: Rationalise TTBRn handling 2020-01-10 15:39:23 +00:00
mtk_iommu.h iommu/mediatek: Move the tlb_sync into tlb_flush 2019-11-11 15:02:34 +01:00
of_iommu.c iommu/arm-smmu-v3: Parse PASID devicetree property of platform devices 2020-01-15 16:00:57 +00:00
omap-iommu-debug.c
omap-iommu.c
omap-iommu.h
omap-iopgtable.h
qcom_iommu.c iommu/arm-smmu: Rename public #defines under ARM_SMMU_ namespace 2020-01-10 15:52:25 +00:00
rockchip-iommu.c Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next 2019-11-12 17:11:25 +01:00
s390-iommu.c
tegra-gart.c
tegra-smmu.c Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next 2019-11-12 17:11:25 +01:00
virtio-iommu.c Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next 2019-11-12 17:11:25 +01:00