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dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags

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DMA_MEMORY_IO was never used in the tree, so remove it.  That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
 Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
Christoph Hellwig
2017-08-25 17:13:09 +02:00
parent b32dbc1e0b
commit 2436bdcda5
11 changed files with 52 additions and 111 deletions
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3
arch/sh/drivers/pci/fixups-dreamcast.c
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@@ -63,11 +63,10 @@ static void gapspci_fixup_resources(struct pci_dev *dev)
res.end = GAPSPCI_DMA_BASE + GAPSPCI_DMA_SIZE - 1;
res.flags = IORESOURCE_MEM;
pcibios_resource_to_bus(dev->bus, &region, &res);
BUG_ON(!dma_declare_coherent_memory(&dev->dev,
BUG_ON(dma_declare_coherent_memory(&dev->dev,
res.start,
region.start,
resource_size(&res),
DMA_MEMORY_MAP |
DMA_MEMORY_EXCLUSIVE));
break;
default: