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Message-ID: <202312271114.jpz92bN9-lkp@intel.com> Date: Wed, 27 Dec 2023 11:58:34 +0800 From: kernel test robot <lkp@...el.com> To: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com> Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net>, Cezary Rojewski <cezary.rojewski@...el.com> Subject: kernel/power/snapshot.c:982: warning: Function parameter or member 'start_pfn' not described in 'register_nosave_region' tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fbafc3e621c3f4ded43720fdb1d6ce1728ec664e commit: 33569ef3c754a82010f266b7b938a66a3ccf90a4 PM: hibernate: Remove register_nosave_region_late() date: 1 year, 11 months ago config: x86_64-randconfig-x066-20230529 (https://download.01.org/0day-ci/archive/20231227/202312271114.jpz92bN9-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231227/202312271114.jpz92bN9-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@...el.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202312271114.jpz92bN9-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/power/snapshot.c:330: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Data types related to memory bitmaps. kernel/power/snapshot.c:438: warning: Function parameter or member 'gfp_mask' not described in 'alloc_rtree_node' kernel/power/snapshot.c:438: warning: Function parameter or member 'safe_needed' not described in 'alloc_rtree_node' kernel/power/snapshot.c:438: warning: Function parameter or member 'ca' not described in 'alloc_rtree_node' kernel/power/snapshot.c:438: warning: Function parameter or member 'list' not described in 'alloc_rtree_node' kernel/power/snapshot.c:463: warning: Function parameter or member 'zone' not described in 'add_rtree_block' kernel/power/snapshot.c:463: warning: Function parameter or member 'gfp_mask' not described in 'add_rtree_block' kernel/power/snapshot.c:463: warning: Function parameter or member 'safe_needed' not described in 'add_rtree_block' kernel/power/snapshot.c:463: warning: Function parameter or member 'ca' not described in 'add_rtree_block' kernel/power/snapshot.c:536: warning: Function parameter or member 'gfp_mask' not described in 'create_zone_bm_rtree' kernel/power/snapshot.c:536: warning: Function parameter or member 'safe_needed' not described in 'create_zone_bm_rtree' kernel/power/snapshot.c:536: warning: Function parameter or member 'ca' not described in 'create_zone_bm_rtree' kernel/power/snapshot.c:536: warning: Function parameter or member 'start' not described in 'create_zone_bm_rtree' kernel/power/snapshot.c:536: warning: Function parameter or member 'end' not described in 'create_zone_bm_rtree' kernel/power/snapshot.c:571: warning: Function parameter or member 'zone' not described in 'free_zone_bm_rtree' kernel/power/snapshot.c:571: warning: Function parameter or member 'clear_nosave_free' not described in 'free_zone_bm_rtree' kernel/power/snapshot.c:678: warning: Function parameter or member 'bm' not described in 'memory_bm_create' kernel/power/snapshot.c:678: warning: Function parameter or member 'gfp_mask' not described in 'memory_bm_create' kernel/power/snapshot.c:678: warning: Function parameter or member 'safe_needed' not described in 'memory_bm_create' kernel/power/snapshot.c:720: warning: Function parameter or member 'clear_nosave_free' not described in 'memory_bm_free' kernel/power/snapshot.c:742: warning: Function parameter or member 'bm' not described in 'memory_bm_find_bit' kernel/power/snapshot.c:742: warning: Function parameter or member 'pfn' not described in 'memory_bm_find_bit' kernel/power/snapshot.c:742: warning: Function parameter or member 'addr' not described in 'memory_bm_find_bit' kernel/power/snapshot.c:742: warning: Function parameter or member 'bit_nr' not described in 'memory_bm_find_bit' kernel/power/snapshot.c:916: warning: expecting prototype for memory_bm_rtree_next_pfn(). Prototype was for memory_bm_next_pfn() instead >> kernel/power/snapshot.c:982: warning: Function parameter or member 'start_pfn' not described in 'register_nosave_region' >> kernel/power/snapshot.c:982: warning: Function parameter or member 'end_pfn' not described in 'register_nosave_region' kernel/power/snapshot.c:1254: warning: Function parameter or member 'zone' not described in 'saveable_highmem_page' kernel/power/snapshot.c:1254: warning: Function parameter or member 'pfn' not described in 'saveable_highmem_page' kernel/power/snapshot.c:1318: warning: Function parameter or member 'zone' not described in 'saveable_page' kernel/power/snapshot.c:1318: warning: Function parameter or member 'pfn' not described in 'saveable_page' kernel/power/snapshot.c:1389: warning: Function parameter or member 'dst' not described in 'safe_copy_page' kernel/power/snapshot.c:1389: warning: Function parameter or member 's_page' not described in 'safe_copy_page' kernel/power/snapshot.c:1602: warning: Function parameter or member 'x' not described in '__fraction' kernel/power/snapshot.c:1602: warning: Function parameter or member 'multiplier' not described in '__fraction' kernel/power/snapshot.c:1602: warning: Function parameter or member 'base' not described in '__fraction' kernel/power/snapshot.c:1893: warning: Function parameter or member 'nr_highmem' not described in 'count_pages_for_highmem' kernel/power/snapshot.c:1911: warning: Function parameter or member 'nr_pages' not described in 'enough_free_mem' kernel/power/snapshot.c:1911: warning: Function parameter or member 'nr_highmem' not described in 'enough_free_mem' kernel/power/snapshot.c:1934: warning: Function parameter or member 'safe_needed' not described in 'get_highmem_buffer' kernel/power/snapshot.c:1947: warning: Function parameter or member 'bm' not described in 'alloc_highmem_pages' kernel/power/snapshot.c:1947: warning: Function parameter or member 'nr_highmem' not described in 'alloc_highmem_pages' kernel/power/snapshot.c:1947: warning: expecting prototype for alloc_highmem_image_pages(). Prototype was for alloc_highmem_pages() instead kernel/power/snapshot.c:1982: warning: Function parameter or member 'copy_bm' not described in 'swsusp_alloc' kernel/power/snapshot.c:1982: warning: Function parameter or member 'nr_pages' not described in 'swsusp_alloc' kernel/power/snapshot.c:1982: warning: Function parameter or member 'nr_highmem' not described in 'swsusp_alloc' kernel/power/snapshot.c:2195: warning: Function parameter or member 'bm' not described in 'mark_unsafe_pages' kernel/power/snapshot.c:2230: warning: Function parameter or member 'info' not described in 'load_header' kernel/power/snapshot.c:2230: warning: expecting prototype for load header(). Prototype was for load_header() instead kernel/power/snapshot.c:2384: warning: Function parameter or member 'page' not described in 'get_highmem_page_buffer' kernel/power/snapshot.c:2384: warning: Function parameter or member 'ca' not described in 'get_highmem_page_buffer' kernel/power/snapshot.c:2569: warning: Function parameter or member 'bm' not described in 'get_buffer' kernel/power/snapshot.c:2569: warning: Function parameter or member 'ca' not described in 'get_buffer' kernel/power/snapshot.c:2693: warning: Function parameter or member 'handle' not described in 'snapshot_write_finalize' vim +982 kernel/power/snapshot.c 307c5971c972ef Rafael J. Wysocki 2016-06-29 974 74dfd666de861c Rafael J. Wysocki 2007-05-06 975 /** ef96f639ea6634 Rafael J. Wysocki 2016-07-06 976 * register_nosave_region - Register a region of unsaveable memory. ef96f639ea6634 Rafael J. Wysocki 2016-07-06 977 * ef96f639ea6634 Rafael J. Wysocki 2016-07-06 978 * Register a range of page frames the contents of which should not be saved ef96f639ea6634 Rafael J. Wysocki 2016-07-06 979 * during hibernation (to be used in the early initialization code). 74dfd666de861c Rafael J. Wysocki 2007-05-06 980 */ 33569ef3c754a8 Amadeusz Sławiński 2022-01-19 981 void __init register_nosave_region(unsigned long start_pfn, unsigned long end_pfn) 74dfd666de861c Rafael J. Wysocki 2007-05-06 @982 { 74dfd666de861c Rafael J. Wysocki 2007-05-06 983 struct nosave_region *region; 74dfd666de861c Rafael J. Wysocki 2007-05-06 984 74dfd666de861c Rafael J. Wysocki 2007-05-06 985 if (start_pfn >= end_pfn) 74dfd666de861c Rafael J. Wysocki 2007-05-06 986 return; 74dfd666de861c Rafael J. Wysocki 2007-05-06 987 74dfd666de861c Rafael J. Wysocki 2007-05-06 988 if (!list_empty(&nosave_regions)) { 74dfd666de861c Rafael J. Wysocki 2007-05-06 989 /* Try to extend the previous region (they should be sorted) */ 74dfd666de861c Rafael J. Wysocki 2007-05-06 990 region = list_entry(nosave_regions.prev, 74dfd666de861c Rafael J. Wysocki 2007-05-06 991 struct nosave_region, list); 74dfd666de861c Rafael J. Wysocki 2007-05-06 992 if (region->end_pfn == start_pfn) { 74dfd666de861c Rafael J. Wysocki 2007-05-06 993 region->end_pfn = end_pfn; 74dfd666de861c Rafael J. Wysocki 2007-05-06 994 goto Report; 74dfd666de861c Rafael J. Wysocki 2007-05-06 995 } 74dfd666de861c Rafael J. Wysocki 2007-05-06 996 } 74dfd666de861c Rafael J. Wysocki 2007-05-06 997 /* This allocation cannot fail */ 7e1c4e27928e5f Mike Rapoport 2018-10-30 998 region = memblock_alloc(sizeof(struct nosave_region), 7e1c4e27928e5f Mike Rapoport 2018-10-30 999 SMP_CACHE_BYTES); 8a7f97b902f4fb Mike Rapoport 2019-03-11 1000 if (!region) 8a7f97b902f4fb Mike Rapoport 2019-03-11 1001 panic("%s: Failed to allocate %zu bytes\n", __func__, 8a7f97b902f4fb Mike Rapoport 2019-03-11 1002 sizeof(struct nosave_region)); 74dfd666de861c Rafael J. Wysocki 2007-05-06 1003 region->start_pfn = start_pfn; 74dfd666de861c Rafael J. Wysocki 2007-05-06 1004 region->end_pfn = end_pfn; 74dfd666de861c Rafael J. Wysocki 2007-05-06 1005 list_add_tail(®ion->list, &nosave_regions); 74dfd666de861c Rafael J. Wysocki 2007-05-06 1006 Report: 64ec72a1ece37d Joe Perches 2017-09-27 1007 pr_info("Registered nosave memory: [mem %#010llx-%#010llx]\n", cd38ca854de15b Bjorn Helgaas 2013-06-03 1008 (unsigned long long) start_pfn << PAGE_SHIFT, cd38ca854de15b Bjorn Helgaas 2013-06-03 1009 ((unsigned long long) end_pfn << PAGE_SHIFT) - 1); 74dfd666de861c Rafael J. Wysocki 2007-05-06 1010 } 74dfd666de861c Rafael J. Wysocki 2007-05-06 1011 :::::: The code at line 982 was first introduced by commit :::::: 74dfd666de861c97d47bdbd892f6d21b801d0247 swsusp: do not use page flags :::::: TO: Rafael J. Wysocki <rjw@...k.pl> :::::: CC: Linus Torvalds <torvalds@...dy.linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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