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-rw-r--r--include/linux/dma-mapping.h10
1 files changed, 3 insertions, 7 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 34fe8463d10e..12fedcba9a9a 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -518,12 +518,8 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
return cpu_addr;
- /*
- * Let the implementation decide on the zone to allocate from, and
- * decide on the way of zeroing the memory given that the memory
- * returned should always be zeroed.
- */
- flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM | __GFP_ZERO);
+ /* let the implementation decide on the zone to allocate from: */
+ flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
if (!arch_dma_alloc_attrs(&dev, &flag))
return NULL;
@@ -578,7 +574,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
/*
* This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
- * don't use this is new code.
+ * don't use this in new code.
*/
#ifndef arch_dma_supported
#define arch_dma_supported(dev, mask) (1)
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