From: Wang Qing <wangqing@xxxxxxxx> Subject: mm/memory.c: do_numa_page(): delete bool "migrated" Smatch gives the warning: do_numa_page() warn: assigning (-11) to unsigned variable 'migrated' Link: https://lkml.kernel.org/r/1614603421-2681-1-git-send-email-wangqing@xxxxxxxx Signed-off-by: Wang Qing <wangqing@xxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memory.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/mm/memory.c~mm-delete-bool-migrated +++ a/mm/memory.c @@ -4098,7 +4098,6 @@ static vm_fault_t do_numa_page(struct vm int page_nid = NUMA_NO_NODE; int last_cpupid; int target_nid; - bool migrated = false; pte_t pte, old_pte; bool was_writable = pte_savedwrite(vmf->orig_pte); int flags = 0; @@ -4168,8 +4167,7 @@ static vm_fault_t do_numa_page(struct vm } /* Migrate to the requested node */ - migrated = migrate_misplaced_page(page, vma, target_nid); - if (migrated) { + if (migrate_misplaced_page(page, vma, target_nid)) { page_nid = target_nid; flags |= TNF_MIGRATED; } else _
