drivers/dma-buf/dma-buf.c:329: warning: No description found for return value of 'dma_buf_set_name'
drivers/dma-buf/dma-buf.c:617: warning: No description found for return value of 'dma_buf_export'
drivers/dma-buf/dma-buf.c:707: warning: No description found for return value of 'dma_buf_fd'
drivers/dma-buf/dma-buf.c:732: warning: No description found for return value of 'dma_buf_get'
drivers/dma-buf/dma-buf.c:984: warning: No description found for return value of 'dma_buf_attach'
drivers/dma-buf/dma-buf.c:1107: warning: No description found for return value of 'dma_buf_map_attachment'
drivers/dma-buf/dma-buf.c:1184: warning: No description found for return value of 'dma_buf_map_attachment_unlocked'
drivers/dma-buf/dma-buf.c:1403: warning: No description found for return value of 'dma_buf_begin_cpu_access'
drivers/dma-buf/dma-buf.c:1439: warning: No description found for return value of 'dma_buf_end_cpu_access'
drivers/dma-buf/dma-buf.c:1470: warning: No description found for return value of 'dma_buf_mmap'
drivers/dma-buf/dma-buf.c:1512: warning: No description found for return value of 'dma_buf_vmap'
drivers/dma-buf/dma-buf.c:1559: 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:326: warning: No description found for return value of 'dma_buf_set_name'
drivers/dma-buf/dma-buf.c:614: warning: No description found for return value of 'dma_buf_export'
drivers/dma-buf/dma-buf.c:696: warning: No description found for return value of 'dma_buf_fd'
drivers/dma-buf/dma-buf.c:721: warning: No description found for return value of 'dma_buf_get'
drivers/dma-buf/dma-buf.c:973: warning: No description found for return value of 'dma_buf_attach'
drivers/dma-buf/dma-buf.c:1096: warning: No description found for return value of 'dma_buf_map_attachment'
drivers/dma-buf/dma-buf.c:1173: warning: No description found for return value of 'dma_buf_map_attachment_unlocked'
drivers/dma-buf/dma-buf.c:1392: warning: No description found for return value of 'dma_buf_begin_cpu_access'
drivers/dma-buf/dma-buf.c:1428: warning: No description found for return value of 'dma_buf_end_cpu_access'
drivers/dma-buf/dma-buf.c:1459: warning: No description found for return value of 'dma_buf_mmap'
drivers/dma-buf/dma-buf.c:1501: warning: No description found for return value of 'dma_buf_vmap'
drivers/dma-buf/dma-buf.c:1548: warning: No description found for return value of 'dma_buf_vmap_unlocked'