include/linux/dma-mapping.h:12: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * List of possible attributes associated with a DMA mapping. The semantics include/linux/dma-mapping.h:12: warning: missing initial short description on line: * List of possible attributes associated with a DMA mapping. The semantics include/linux/dma-mapping.h:550: warning: No description found for return value of 'dma_get_seg_boundary_nr_pages' include/linux/dma-mapping.h:12: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * List of possible attributes associated with a DMA mapping. The semantics include/linux/dma-mapping.h:12: warning: missing initial short description on line: * List of possible attributes associated with a DMA mapping. The semantics include/linux/dma-mapping.h:550: warning: No description found for return value of 'dma_get_seg_boundary_nr_pages'