diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-02-13 08:01:04 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-18 12:41:02 +0100 |
| commit | a20f507f577b04f286c88a4885ac528e69f6f308 (patch) | |
| tree | 4c750d74da110cb1f397e67e272574eaeb7a810e /arch/powerpc/kernel/dma-iommu.c | |
| parent | dma-direct: we might need GFP_DMA for 32-bit dma masks (diff) | |
| download | linux-a20f507f577b04f286c88a4885ac528e69f6f308.tar.xz linux-a20f507f577b04f286c88a4885ac528e69f6f308.zip | |
powerpc/dma: untangle vio_dma_mapping_ops from dma_iommu_ops
vio_dma_mapping_ops currently does a lot of indirect calls through
dma_iommu_ops, which not only make the code harder to follow but are
also expensive in the post-spectre world. Unwind the indirect calls
by calling the ppc_iommu_* or iommu_* APIs directly applicable, or
just use the dma_iommu_* methods directly where we can.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
| -rw-r--r-- | arch/powerpc/kernel/dma-iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 9c9bcaae2f75..dd8601cd20df 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -92,7 +92,7 @@ int dma_iommu_dma_supported(struct device *dev, u64 mask) return 1; } -static u64 dma_iommu_get_required_mask(struct device *dev) +u64 dma_iommu_get_required_mask(struct device *dev) { struct iommu_table *tbl = get_iommu_table_base(dev); u64 mask; |