drivers/dma-buf/dma-buf.c:339: warning: No description found for return value of 'dma_buf_set_name'
drivers/dma-buf/dma-buf.c:627: warning: No description found for return value of 'dma_buf_export'
drivers/dma-buf/dma-buf.c:717: warning: No description found for return value of 'dma_buf_fd'
drivers/dma-buf/dma-buf.c:742: warning: No description found for return value of 'dma_buf_get'
drivers/dma-buf/dma-buf.c:994: warning: No description found for return value of 'dma_buf_attach'
drivers/dma-buf/dma-buf.c:1117: warning: No description found for return value of 'dma_buf_map_attachment'
drivers/dma-buf/dma-buf.c:1194: warning: No description found for return value of 'dma_buf_map_attachment_unlocked'
drivers/dma-buf/dma-buf.c:1413: warning: No description found for return value of 'dma_buf_begin_cpu_access'
drivers/dma-buf/dma-buf.c:1449: warning: No description found for return value of 'dma_buf_end_cpu_access'
drivers/dma-buf/dma-buf.c:1480: warning: No description found for return value of 'dma_buf_mmap'
drivers/dma-buf/dma-buf.c:1522: warning: No description found for return value of 'dma_buf_vmap'
drivers/dma-buf/dma-buf.c:1569: warning: No description found for return value of 'dma_buf_vmap_unlocked'
Error: Cannot open file Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers
Error: Cannot open file drivers/dma-buf/dma-buf-sysfs-stats.c
Error: Cannot open file drivers/dma-buf/dma-buf-sysfs-stats.h
drivers/dma-buf/dma-buf.c:336: warning: No description found for return value of 'dma_buf_set_name'
drivers/dma-buf/dma-buf.c:624: warning: No description found for return value of 'dma_buf_export'
drivers/dma-buf/dma-buf.c:706: warning: No description found for return value of 'dma_buf_fd'
drivers/dma-buf/dma-buf.c:731: warning: No description found for return value of 'dma_buf_get'
drivers/dma-buf/dma-buf.c:983: warning: No description found for return value of 'dma_buf_attach'
drivers/dma-buf/dma-buf.c:1106: warning: No description found for return value of 'dma_buf_map_attachment'
drivers/dma-buf/dma-buf.c:1183: warning: No description found for return value of 'dma_buf_map_attachment_unlocked'
drivers/dma-buf/dma-buf.c:1402: warning: No description found for return value of 'dma_buf_begin_cpu_access'
drivers/dma-buf/dma-buf.c:1438: warning: No description found for return value of 'dma_buf_end_cpu_access'
drivers/dma-buf/dma-buf.c:1469: warning: No description found for return value of 'dma_buf_mmap'
drivers/dma-buf/dma-buf.c:1511: warning: No description found for return value of 'dma_buf_vmap'
drivers/dma-buf/dma-buf.c:1558: warning: No description found for return value of 'dma_buf_vmap_unlocked'