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authorChristoph Hellwig <hch@lst.de>2018-09-17 20:10:25 +0300
committerTony Luck <tony.luck@intel.com>2018-09-17 20:15:19 +0300
commitbeec903f71214c0bfa555955dd548e87bfb2c623 (patch)
treeb9e0f69e62f6773bc7cbff557669e556a7202cdf /arch/ia64
parent77308e27a0592857438cfd501cce813c513043a2 (diff)
downloadlinux-beec903f71214c0bfa555955dd548e87bfb2c623.tar.xz
ia64: remove iommu_dma_supported
The generic dma_direct_supported helper already used by intel-iommu on x86 does a better job than the ia64 reimplementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/pci-dma.c13
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 50b6ad282a90..3c2884bef3d4 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -51,18 +51,6 @@ iommu_dma_init(void)
return;
}
-int iommu_dma_supported(struct device *dev, u64 mask)
-{
- /* Copied from i386. Doesn't make much sense, because it will
- only work for pci_alloc_coherent.
- The caller just has to use GFP_DMA in this case. */
- if (mask < DMA_BIT_MASK(24))
- return 0;
-
- return 1;
-}
-EXPORT_SYMBOL(iommu_dma_supported);
-
void __init pci_iommu_alloc(void)
{
dma_ops = &intel_dma_ops;
@@ -71,7 +59,6 @@ void __init pci_iommu_alloc(void)
intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
- intel_dma_ops.dma_supported = iommu_dma_supported;
/*
* The order of these functions is important for