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-rw-r--r--Documentation/dma-buf-sharing.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/dma-buf-sharing.txt b/Documentation/dma-buf-sharing.txt
index 510eab32f392..225f96d88f55 100644
--- a/Documentation/dma-buf-sharing.txt
+++ b/Documentation/dma-buf-sharing.txt
@@ -219,6 +219,10 @@ NOTES:
219 If the exporter chooses not to allow an attach() operation once a 219 If the exporter chooses not to allow an attach() operation once a
220 map_dma_buf() API has been called, it simply returns an error. 220 map_dma_buf() API has been called, it simply returns an error.
221 221
222Miscellaneous notes:
223- Any exporters or users of the dma-buf buffer sharing framework must have
224 a 'select DMA_SHARED_BUFFER' in their respective Kconfigs.
225
222References: 226References:
223[1] struct dma_buf_ops in include/linux/dma-buf.h 227[1] struct dma_buf_ops in include/linux/dma-buf.h
224[2] All interfaces mentioned above defined in include/linux/dma-buf.h 228[2] All interfaces mentioned above defined in include/linux/dma-buf.h