MIPS: Octeon: unexport __phys_to_dma and __dma_to_phys

These functions are just low-level helpers for the swiotlb and dma-direct
implementations, and should never be used by drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19531/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-mips@linux-mips.org

arch/mips/cavium-octeon/dma-octeon.c

@@ -13,7 +13,6 @@
 #include <linux/dma-direct.h>
 #include <linux/scatterlist.h>
 #include <linux/bootmem.h>
-#include <linux/export.h>
 #include <linux/swiotlb.h>
 #include <linux/types.h>
 #include <linux/init.h>
@@ -190,7 +189,6 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
 
 	return ops->phys_to_dma(dev, paddr);
 }
-EXPORT_SYMBOL(__phys_to_dma);
 
 phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
@@ -200,7 +198,6 @@ phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 	return ops->dma_to_phys(dev, daddr);
 }
-EXPORT_SYMBOL(__dma_to_phys);
 
 static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
 	.dma_map_ops = {