include/net/page_pool/helpers.h:93: warning: No description found for return value of 'page_pool_dev_alloc_pages'
include/net/page_pool/helpers.h:226: warning: No description found for return value of 'page_pool_get_dma_dir'
include/net/page_pool/helpers.h:433: warning: No description found for return value of 'page_pool_get_dma_addr'
include/net/page_pool/helpers.h:99: warning: No description found for return value of 'page_pool_dev_alloc_pages'
include/net/page_pool/helpers.h:232: warning: No description found for return value of 'page_pool_get_dma_dir'
include/net/page_pool/helpers.h:439: warning: No description found for return value of 'page_pool_get_dma_addr'