forked from Minki/linux
arm64: dma-mapping: fix handling of devices registered before arch_initcall
This patch ensures that devices, which got registered before arch_initcall
will be handled correctly by IOMMU-based DMA-mapping code.
Cc: <stable@vger.kernel.org>
Fixes: 13b8629f65
("arm64: Add IOMMU dma_ops")
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void)
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ret = register_iommu_dma_ops_notifier(&platform_bus_type);
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if (!ret)
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ret = register_iommu_dma_ops_notifier(&amba_bustype);
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/* handle devices queued before this arch_initcall */
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if (!ret)
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__iommu_attach_notifier(NULL, BUS_NOTIFY_ADD_DEVICE, NULL);
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return ret;
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}
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arch_initcall(__iommu_dma_init);
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