Messages in this thread Patch in this message | | | From | Huaisheng Ye <> | Subject | [RFC PATCH v2 05/12] include/linux/dma-mapping: update usage of address zone modifiers | Date | Mon, 21 May 2018 23:20:26 +0800 |
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From: Huaisheng Ye <yehs1@lenovo.com>
Use __GFP_ZONE_MASK to replace (__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32).
___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP bitmasks, the bottom three bits of GFP mask is reserved for storing encoded zone number. __GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated with each others by OR.
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Robin Murphy <robin.murphy@arm.com> --- include/linux/dma-mapping.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index eb9eab4..3da0293 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -523,7 +523,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size, * 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); + flag &= ~(__GFP_ZONE_MASK | __GFP_ZERO); if (!arch_dma_alloc_attrs(&dev, &flag)) return NULL; -- 1.8.3.1
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