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--- a/arch/mips/mm/cache.c
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+++ b/arch/mips/mm/cache.c
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@@ -50,6 +50,8 @@
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void (*_dma_cache_inv)(unsigned long start, unsigned long size);
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EXPORT_SYMBOL(_dma_cache_wback_inv);
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+EXPORT_SYMBOL(_dma_cache_wback);
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+EXPORT_SYMBOL(_dma_cache_inv);
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#endif /* CONFIG_DMA_NONCOHERENT */
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