Adds the proper MODULE_IMPORT_NS(DMA_BUF) line to the file to get it to build properly. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20211027154843.622961fd@canb.auug.org.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>