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-rw-r--r--include/asm-arm/dma-mapping.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/dma-mapping.h b/include/asm-arm/dma-mapping.h
index 925d016dd4b..d62ade4e4cb 100644
--- a/include/asm-arm/dma-mapping.h
+++ b/include/asm-arm/dma-mapping.h
@@ -21,6 +21,9 @@ extern void consistent_sync(void *kaddr, size_t size, int rw);
* properly. For example, if your device can only drive the low 24-bits
* during bus mastering, then you would pass 0x00ffffff as the mask
* to this function.
+ *
+ * FIXME: This should really be a platform specific issue - we should
+ * return false if GFP_DMA allocations may not satisfy the supplied 'mask'.
*/
static inline int dma_supported(struct device *dev, u64 mask)
{