Warnings before patch:
files: ['include/linux/mm.h', 'mm/memory.c', 'mm/rmap.c']
Warning: include/linux/mm.h:241 No description found for return value of 'folio_page_idx'
Warning: include/linux/mm.h:1939 No description found for return value of 'thp_order'
Warning: include/linux/mm.h:2668 No description found for return value of 'is_zero_page'
Warning: include/linux/mm.h:2679 No description found for return value of 'is_zero_folio'
Warning: include/linux/mm.h:3634 No description found for return value of 'ptdesc_test_kernel'
Warning: mm/memory.c:2485 No description found for return value of 'vm_insert_pages'
Warning: mm/memory.c:6999 No description found for return value of 'generic_access_phys'
Warning: mm/rmap.c:185 No description found for return value of '__anon_vma_prepare'
Warning: mm/rmap.c:1311 No description found for return value of 'pfn_mkclean_range'
Warning: include/linux/mm.h:241 No description found for return value of 'folio_page_idx'
Warning: include/linux/mm.h:1939 No description found for return value of 'thp_order'
Warning: include/linux/mm.h:2668 No description found for return value of 'is_zero_page'
Warning: include/linux/mm.h:2679 No description found for return value of 'is_zero_folio'
Warning: include/linux/mm.h:3634 No description found for return value of 'ptdesc_test_kernel'
Warning: mm/memory.c:2485 No description found for return value of 'vm_insert_pages'
Warning: mm/memory.c:6999 No description found for return value of 'generic_access_phys'
Warning: mm/rmap.c:185 No description found for return value of '__anon_vma_prepare'
Warning: mm/rmap.c:1311 No description found for return value of 'pfn_mkclean_range'

Current warnings:
files: ['include/linux/mm.h', 'mm/memory.c', 'mm/rmap.c']
Warning: include/linux/mm.h:241 No description found for return value of 'folio_page_idx'
Warning: include/linux/mm.h:1929 No description found for return value of 'thp_order'
Warning: include/linux/mm.h:2658 No description found for return value of 'is_zero_page'
Warning: include/linux/mm.h:2669 No description found for return value of 'is_zero_folio'
Warning: include/linux/mm.h:3624 No description found for return value of 'ptdesc_test_kernel'
Warning: mm/memory.c:2485 No description found for return value of 'vm_insert_pages'
Warning: mm/memory.c:6999 No description found for return value of 'generic_access_phys'
Warning: mm/rmap.c:185 No description found for return value of '__anon_vma_prepare'
Warning: mm/rmap.c:1311 No description found for return value of 'pfn_mkclean_range'
Warning: include/linux/mm.h:241 No description found for return value of 'folio_page_idx'
Warning: include/linux/mm.h:1929 No description found for return value of 'thp_order'
Warning: include/linux/mm.h:2658 No description found for return value of 'is_zero_page'
Warning: include/linux/mm.h:2669 No description found for return value of 'is_zero_folio'
Warning: include/linux/mm.h:3624 No description found for return value of 'ptdesc_test_kernel'
Warning: mm/memory.c:2485 No description found for return value of 'vm_insert_pages'
Warning: mm/memory.c:6999 No description found for return value of 'generic_access_phys'
Warning: mm/rmap.c:185 No description found for return value of '__anon_vma_prepare'
Warning: mm/rmap.c:1311 No description found for return value of 'pfn_mkclean_range'

Warnings before: 18 after: 18