static int cfe_env;
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
-@@ -62,6 +62,8 @@ void (*_dma_cache_wback_inv)(unsigned lo
+@@ -62,6 +62,9 @@ void (*_dma_cache_wback_inv)(unsigned lo
void (*_dma_cache_wback)(unsigned long start, unsigned long size);
void (*_dma_cache_inv)(unsigned long start, unsigned long size);
++EXPORT_SYMBOL(_dma_cache_wback_inv);
+EXPORT_SYMBOL(_dma_cache_inv);
+
#endif /* CONFIG_DMA_NONCOHERENT */