The patch titled Subject: mm/memory_hotplug: fix build warning without CONFIG_MEMORY_HOTREMOVE has been added to the -mm tree. Its filename is mm-memory_hotplug-reset-nodes-state-when-empty-during-offline-fix.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-reset-nodes-state-when-empty-during-offline-fix.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-reset-nodes-state-when-empty-during-offline-fix.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: YueHaibing <yuehaibing@xxxxxxxxxx> Subject: mm/memory_hotplug: fix build warning without CONFIG_MEMORY_HOTREMOVE mm/memory_hotplug.c:1148:13: warning: `reset_node_present_pages' defined but not used [-Wunused-function] 1148 | static void reset_node_present_pages(pg_data_t *pgdat) | ^~~~~~~~~~~~~~~~~~~~~~~~ reset_node_present_pages() now only used in node_reset_state(),move it inside the ifdef block to fix this warning. Link: https://lkml.kernel.org/r/20220408022402.29668-1-yuehaibing@xxxxxxxxxx Fixes: 0d540af7befe ("mm/memory_hotplug: reset node's state when empty during offline") Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> Cc: Oscar Salvador <osalvador@xxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Cc: Wei Yang <richard.weiyang@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/mm/memory_hotplug.c~mm-memory_hotplug-reset-nodes-state-when-empty-during-offline-fix +++ a/mm/memory_hotplug.c @@ -1145,16 +1145,6 @@ failed_addition: return ret; } -static void reset_node_present_pages(pg_data_t *pgdat) -{ - struct zone *z; - - for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++) - z->present_pages = 0; - - pgdat->node_present_pages = 0; -} - /* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */ static pg_data_t __ref *hotadd_init_pgdat(int nid) { @@ -1755,6 +1745,16 @@ static void node_states_clear_node(int n node_clear_state(node, N_MEMORY); } +static void reset_node_present_pages(pg_data_t *pgdat) +{ + struct zone *z; + + for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++) + z->present_pages = 0; + + pgdat->node_present_pages = 0; +} + static void node_reset_state(int node) { pg_data_t *pgdat = NODE_DATA(node); _ Patches currently in -mm which might be from yuehaibing@xxxxxxxxxx are mm-memory_hotplug-reset-nodes-state-when-empty-during-offline-fix.patch