[PATCH 07/18] iommu/arm-smmu: Remove arch/arm workaround
From: Robin Murphy <robin.murphy@arm.com>
Date: 2020-08-20 15:12:28
Also in:
dri-devel, linux-arm-msm, linux-iommu, linux-media, linux-mediatek, linux-samsung-soc, linux-tegra, lkml
Subsystem:
arm smmu drivers, iommu subsystem, the rest · Maintainers:
Will Deacon, Joerg Roedel, Linus Torvalds
Now that arch/arm is wired up for default domains and iommu-dma, remove the add_device workaround. Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/iommu/arm/arm-smmu/arm-smmu.c | 10 ---------- 1 file changed, 10 deletions(-)
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 09c42af9f31e..4e52d8cb67dd 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c@@ -1164,17 +1164,7 @@ static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev) return -ENXIO; } - /* - * FIXME: The arch/arm DMA API code tries to attach devices to its own - * domains between of_xlate() and probe_device() - we have no way to cope - * with that, so until ARM gets converted to rely on groups and default - * domains, just say no (but more politely than by dereferencing NULL). - * This should be at least a WARN_ON once that's sorted. - */ cfg = dev_iommu_priv_get(dev); - if (!cfg) - return -ENODEV; - smmu = cfg->smmu; ret = arm_smmu_rpm_get(smmu);
--
2.28.0.dirty
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