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: If the exporter chooses not to allow an attach() operation once a map_dma_buf() API has been called, it simply returns an error. +Miscellaneous notes: +- Any exporters or users of the dma-buf buffer sharing framework must have + a 'select DMA_SHARED_BUFFER' in their respective Kconfigs. + References: [1] struct dma_buf_ops in include/linux/dma-buf.h [2] All interfaces mentioned above defined in include/linux/dma-buf.h