include/linux/dma-mapping.h:16: 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:16: warning: missing initial short description on line:
 * List of possible attributes associated with a DMA mapping. The semantics
include/linux/dma-mapping.h:509: warning: No description found for return value of 'dma_get_seg_boundary_nr_pages'
kernel/dma/mapping.c:234: warning: No description found for return value of 'dma_map_sg_attrs'
kernel/dma/mapping.c:273: warning: No description found for return value of 'dma_map_sgtable'
kernel/dma/mapping.c:440: warning: No description found for return value of 'dma_can_mmap'
kernel/dma/mapping.c:465: warning: No description found for return value of 'dma_mmap_attrs'
kernel/dma/mapping.c:806: warning: No description found for return value of 'dma_addressing_limited'
include/linux/dma-mapping.h:16: 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:16: warning: missing initial short description on line:
 * List of possible attributes associated with a DMA mapping. The semantics
include/linux/dma-mapping.h:513: warning: No description found for return value of 'dma_get_seg_boundary_nr_pages'
kernel/dma/mapping.c:234: warning: No description found for return value of 'dma_map_sg_attrs'
kernel/dma/mapping.c:273: warning: No description found for return value of 'dma_map_sgtable'
kernel/dma/mapping.c:452: warning: No description found for return value of 'dma_can_mmap'
kernel/dma/mapping.c:477: warning: No description found for return value of 'dma_mmap_attrs'
kernel/dma/mapping.c:818: warning: No description found for return value of 'dma_addressing_limited'