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| author | Christoph Hellwig <hch@lst.de> | 2018-12-21 14:32:02 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-04-08 17:52:46 +0200 |
| commit | e43e2657fe77a37b13643e2469670ecdb0ba5e10 (patch) | |
| tree | 4ee78346c28a4eb714497802b083af8064b9992e /arch/x86/kernel/pci-dma.c | |
| parent | d7e02a931235de0779d44c6f8d211df0eca304b8 (diff) | |
| download | linux-stable-e43e2657fe77a37b13643e2469670ecdb0ba5e10.tar.gz linux-stable-e43e2657fe77a37b13643e2469670ecdb0ba5e10.tar.bz2 linux-stable-e43e2657fe77a37b13643e2469670ecdb0ba5e10.zip | |
x86/dma: Remove the x86_dma_fallback_dev hack
Now that we removed support for the NULL device argument in the DMA API,
there is no need to cater for that in the x86 code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index d460998ae828..dcd272dbd0a9 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -51,14 +51,6 @@ int iommu_pass_through __read_mostly; extern struct iommu_table_entry __iommu_table[], __iommu_table_end[]; -/* Dummy device used for NULL arguments (normally ISA). */ -struct device x86_dma_fallback_dev = { - .init_name = "fallback device", - .coherent_dma_mask = ISA_DMA_BIT_MASK, - .dma_mask = &x86_dma_fallback_dev.coherent_dma_mask, -}; -EXPORT_SYMBOL(x86_dma_fallback_dev); - void __init pci_iommu_alloc(void) { struct iommu_table_entry *p; @@ -77,18 +69,6 @@ void __init pci_iommu_alloc(void) } } -bool arch_dma_alloc_attrs(struct device **dev) -{ - if (!*dev) - *dev = &x86_dma_fallback_dev; - - if (!is_device_dma_capable(*dev)) - return false; - return true; - -} -EXPORT_SYMBOL(arch_dma_alloc_attrs); - /* * See <Documentation/x86/x86_64/boot-options.txt> for the iommu kernel * parameter documentation. |