+ 'exp_name' in struct dma_buf_export_info is the name of exporter - to
+ facilitate information while debugging. It is set to KBUILD_MODNAME by
+ default, so exporters don't have to provide a specific name, if they don't
+ wish to.
+
+ DEFINE_DMA_BUF_EXPORT_INFO macro defines the struct dma_buf_export_info,
+ zeroes it out and pre-populates exp_name in it.