diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 03:41:31 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 03:41:31 +0300 |
| commit | 9b51f04424e17051a89ab32d892ca66b2a104825 (patch) | |
| tree | 919f49ed827de2b37d8f9187cbcc96d9a2cac0c5 /drivers/parisc/sba_iommu.c | |
| parent | 55a7b2125cf4739a8478d2d7223310ae7393408c (diff) | |
| parent | 227145eb38fbee9d88a570954b3de836c4280134 (diff) | |
| download | linux-9b51f04424e17051a89ab32d892ca66b2a104825.tar.xz | |
Merge branch 'parisc-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull another parisc update from Helge Deller:
"Christoph Hellwig provided one patch for the parisc architecture to
drop the DMA_ERROR_CODE define from the parisc architecture"
* 'parisc-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: ->mapping_error
Diffstat (limited to 'drivers/parisc/sba_iommu.c')
| -rw-r--r-- | drivers/parisc/sba_iommu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 87ad5fd6a7a2..4086f79d58d5 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -93,6 +93,8 @@ #define DEFAULT_DMA_HINT_REG 0 +#define SBA_MAPPING_ERROR (~(dma_addr_t)0) + struct sba_device *sba_list; EXPORT_SYMBOL_GPL(sba_list); @@ -725,7 +727,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, ioc = GET_IOC(dev); if (!ioc) - return DMA_ERROR_CODE; + return SBA_MAPPING_ERROR; /* save offset bits */ offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK; @@ -1083,6 +1085,11 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, } +static int sba_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return dma_addr == SBA_MAPPING_ERROR; +} + static const struct dma_map_ops sba_ops = { .dma_supported = sba_dma_supported, .alloc = sba_alloc, @@ -1091,6 +1098,7 @@ static const struct dma_map_ops sba_ops = { .unmap_page = sba_unmap_page, .map_sg = sba_map_sg, .unmap_sg = sba_unmap_sg, + .mapping_error = sba_mapping_error, }; |