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dma-mapping: remove the dma_declare_coherent_memory export

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dma_declare_coherent_memory is something that the platform setup code
(which pretty much means the device tree these days) need to do so that
drivers can use the memory as declared by the platform.  Drivers
themselves have no business calling this function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2019-08-30 08:48:27 +02:00
parent 6334150e9a
commit d9295532d5
1 changed files with 0 additions and 1 deletions
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kernel/dma/coherent.c
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@ -122,7 +122,6 @@ int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_release_coherent_memory(mem);
return ret;
}
EXPORT_SYMBOL(dma_declare_coherent_memory);
static void *__dma_alloc_from_coherent(struct dma_coherent_mem *mem,
ssize_t size, dma_addr_t *dma_handle)