mm/page_alloc.c:8046:12: error: implicit declaration of function 'arch_alloc_nodedata'
From: kernel test robot
Date: Thu Dec 09 2021 - 17:15:46 EST
tree: https://github.com/0day-ci/linux/commits/UPDATE-20211209-184929/Alexey-Makhalov/mm-fix-panic-in-__alloc_pages/20211102-041405
head: 652e780546c1fdbe1adcbbe04106f4020e3bfb56
commit: 652e780546c1fdbe1adcbbe04106f4020e3bfb56 mm: fix panic in __alloc_pages
date: 11 hours ago
config: arm-randconfig-r004-20211209 (https://download.01.org/0day-ci/archive/20211210/202112100636.K5fagHTG-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/0day-ci/linux/commit/652e780546c1fdbe1adcbbe04106f4020e3bfb56
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review UPDATE-20211209-184929/Alexey-Makhalov/mm-fix-panic-in-__alloc_pages/20211102-041405
git checkout 652e780546c1fdbe1adcbbe04106f4020e3bfb56
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All error/warnings (new ones prefixed by >>):
mm/page_alloc.c:3804:15: warning: no previous prototype for function 'should_fail_alloc_page' [-Wmissing-prototypes]
noinline bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
^
mm/page_alloc.c:3804:10: note: declare 'static' if the function is not intended to be used outside of this translation unit
noinline bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
^
static
>> mm/page_alloc.c:8046:12: error: implicit declaration of function 'arch_alloc_nodedata' [-Werror,-Wimplicit-function-declaration]
pgdat = arch_alloc_nodedata(nid);
^
>> mm/page_alloc.c:8046:10: warning: incompatible integer to pointer conversion assigning to 'pg_data_t *' (aka 'struct pglist_data *') from 'int' [-Wint-conversion]
pgdat = arch_alloc_nodedata(nid);
^ ~~~~~~~~~~~~~~~~~~~~~~~~
>> mm/page_alloc.c:8052:4: error: implicit declaration of function 'arch_refresh_nodedata' [-Werror,-Wimplicit-function-declaration]
arch_refresh_nodedata(nid, pgdat);
^
mm/page_alloc.c:8052:4: note: did you mean 'arch_alloc_nodedata'?
mm/page_alloc.c:8046:12: note: 'arch_alloc_nodedata' declared here
pgdat = arch_alloc_nodedata(nid);
^
2 warnings and 2 errors generated.
vim +/arch_alloc_nodedata +8046 mm/page_alloc.c
7949
7950 /**
7951 * free_area_init - Initialise all pg_data_t and zone data
7952 * @max_zone_pfn: an array of max PFNs for each zone
7953 *
7954 * This will call free_area_init_node() for each active node in the system.
7955 * Using the page ranges provided by memblock_set_node(), the size of each
7956 * zone in each node and their holes is calculated. If the maximum PFN
7957 * between two adjacent zones match, it is assumed that the zone is empty.
7958 * For example, if arch_max_dma_pfn == arch_max_dma32_pfn, it is assumed
7959 * that arch_max_dma32_pfn has no pages. It is also assumed that a zone
7960 * starts where the previous one ended. For example, ZONE_DMA32 starts
7961 * at arch_max_dma_pfn.
7962 */
7963 void __init free_area_init(unsigned long *max_zone_pfn)
7964 {
7965 unsigned long start_pfn, end_pfn;
7966 int i, nid, zone;
7967 bool descending;
7968
7969 /* Record where the zone boundaries are */
7970 memset(arch_zone_lowest_possible_pfn, 0,
7971 sizeof(arch_zone_lowest_possible_pfn));
7972 memset(arch_zone_highest_possible_pfn, 0,
7973 sizeof(arch_zone_highest_possible_pfn));
7974
7975 start_pfn = find_min_pfn_with_active_regions();
7976 descending = arch_has_descending_max_zone_pfns();
7977
7978 for (i = 0; i < MAX_NR_ZONES; i++) {
7979 if (descending)
7980 zone = MAX_NR_ZONES - i - 1;
7981 else
7982 zone = i;
7983
7984 if (zone == ZONE_MOVABLE)
7985 continue;
7986
7987 end_pfn = max(max_zone_pfn[zone], start_pfn);
7988 arch_zone_lowest_possible_pfn[zone] = start_pfn;
7989 arch_zone_highest_possible_pfn[zone] = end_pfn;
7990
7991 start_pfn = end_pfn;
7992 }
7993
7994 /* Find the PFNs that ZONE_MOVABLE begins at in each node */
7995 memset(zone_movable_pfn, 0, sizeof(zone_movable_pfn));
7996 find_zone_movable_pfns_for_nodes();
7997
7998 /* Print out the zone ranges */
7999 pr_info("Zone ranges:\n");
8000 for (i = 0; i < MAX_NR_ZONES; i++) {
8001 if (i == ZONE_MOVABLE)
8002 continue;
8003 pr_info(" %-8s ", zone_names[i]);
8004 if (arch_zone_lowest_possible_pfn[i] ==
8005 arch_zone_highest_possible_pfn[i])
8006 pr_cont("empty\n");
8007 else
8008 pr_cont("[mem %#018Lx-%#018Lx]\n",
8009 (u64)arch_zone_lowest_possible_pfn[i]
8010 << PAGE_SHIFT,
8011 ((u64)arch_zone_highest_possible_pfn[i]
8012 << PAGE_SHIFT) - 1);
8013 }
8014
8015 /* Print out the PFNs ZONE_MOVABLE begins at in each node */
8016 pr_info("Movable zone start for each node\n");
8017 for (i = 0; i < MAX_NUMNODES; i++) {
8018 if (zone_movable_pfn[i])
8019 pr_info(" Node %d: %#018Lx\n", i,
8020 (u64)zone_movable_pfn[i] << PAGE_SHIFT);
8021 }
8022
8023 /*
8024 * Print out the early node map, and initialize the
8025 * subsection-map relative to active online memory ranges to
8026 * enable future "sub-section" extensions of the memory map.
8027 */
8028 pr_info("Early memory node ranges\n");
8029 for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid) {
8030 pr_info(" node %3d: [mem %#018Lx-%#018Lx]\n", nid,
8031 (u64)start_pfn << PAGE_SHIFT,
8032 ((u64)end_pfn << PAGE_SHIFT) - 1);
8033 subsection_map_init(start_pfn, end_pfn - start_pfn);
8034 }
8035
8036 /* Initialise every node */
8037 mminit_verify_pageflags_layout();
8038 setup_nr_node_ids();
8039 for_each_node(nid) {
8040 pg_data_t *pgdat;
8041
8042 if (!node_online(nid)) {
8043 pr_warn("Node %d uninitialized by the platform. Please report with boot dmesg.\n", nid);
8044
8045 /* Allocator not initialized yet */
> 8046 pgdat = arch_alloc_nodedata(nid);
8047 if (!pgdat) {
8048 pr_err("Cannot allocate %zuB for node %d.\n",
8049 sizeof(*pgdat), nid);
8050 continue;
8051 }
> 8052 arch_refresh_nodedata(nid, pgdat);
8053 free_area_init_memoryless_node(nid);
8054 /*
8055 * not marking this node online because we do not want to
8056 * confuse userspace by sysfs files/directories for node
8057 * without any memory attached to it (see topology_init)
8058 * The pgdat will get fully initialized when a memory is
8059 * hotpluged into it by hotadd_init_pgdat
8060 */
8061 continue;
8062 }
8063
8064 pgdat = NODE_DATA(nid);
8065 free_area_init_node(nid);
8066
8067 /* Any memory on that node */
8068 if (pgdat->node_present_pages)
8069 node_set_state(nid, N_MEMORY);
8070 check_for_memory(pgdat, nid);
8071 }
8072
8073 memmap_init();
8074 }
8075
---
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