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authorChristoph Hellwig <hch@lst.de>2019-02-13 08:01:15 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2019-02-18 22:41:03 +1100
commitffe3dfd4e3598651a87651f3d59f144ee31f60fb (patch)
treec59499138eefbd31a9837819e27c60e068fee2d5 /kernel/dma
parent2d6ad41b2c210667b803585b62f9c1943bf02c91 (diff)
downloadlinux-ffe3dfd4e3598651a87651f3d59f144ee31f60fb.tar.bz2
powerpc/dma: stop overriding dma_get_required_mask
The ppc_md and pci_controller_ops methods are unused now and can be removed. The dma_nommu implementation is generic to the generic one except for using max_pfn instead of calling into the memblock API, and all other dma_map_ops instances implement a method of their own. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/mapping.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index a11006b6d8e8..40c0af744692 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -207,7 +207,6 @@ int dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
}
EXPORT_SYMBOL(dma_mmap_attrs);
-#ifndef ARCH_HAS_DMA_GET_REQUIRED_MASK
static u64 dma_default_get_required_mask(struct device *dev)
{
u32 low_totalram = ((max_pfn - 1) << PAGE_SHIFT);
@@ -238,7 +237,6 @@ u64 dma_get_required_mask(struct device *dev)
return dma_default_get_required_mask(dev);
}
EXPORT_SYMBOL_GPL(dma_get_required_mask);
-#endif
#ifndef arch_dma_alloc_attrs
#define arch_dma_alloc_attrs(dev) (true)