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authorChristoph Hellwig <hch@lst.de>2018-12-14 08:15:02 (GMT)
committerChristoph Hellwig <hch@lst.de>2018-12-20 07:14:09 (GMT)
commit06d4dd2f2ce1cdb625f77c0676d5af6ba310c01d (patch)
tree4ab5304877a59cda6d57944619e7567af45ae2b6 /Documentation/DMA-API.txt
parent518a2f1925c3165befbf06b75e07636549d92c1c (diff)
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dma-mapping: deprecate dma_zalloc_coherent
We now always return zeroed memory from dma_alloc_coherent. Note that simply passing GFP_ZERO to dma_alloc_coherent wasn't always doing the right thing to start with given that various allocators are not backed by the page allocator and thus would ignore GFP_ZERO. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'Documentation/DMA-API.txt')
-rw-r--r--Documentation/DMA-API.txt9
1 files changed, 0 insertions, 9 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 016eb69..e133ccd 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -60,15 +60,6 @@ the returned memory, like GFP_DMA).
::
- void *
- dma_zalloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag)
-
-Wraps dma_alloc_coherent() and also zeroes the returned memory if the
-allocation attempt succeeded.
-
-::
-
void
dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)