In commit f70029bbaacb ("mm, memory_hotplug: drop CONFIG_MOVABLE_NODE"), the dependency on CONFIG_MOVABLE_NODE was removed for N_MEMORY. Before commit f70029bbaacb, CONFIG_HIGHMEM && !CONFIG_MOVABLE_NODE could make (N_MEMORY == N_NORMAL_MEMORY) be true. After commit f70029bbaacb, N_MEMORY doesn't have any chance to be equal to N_NORMAL_MEMORY. So the conditional check in paging_init() doesn't make sense any more. Let's remove it. Signed-off-by: Baoquan He <bhe@xxxxxxxxxx> --- v1->v2: Update patch log to make the description clearer per Michal's suggestion. arch/x86/mm/init_64.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index abbdecb75fad..0a14711d3a93 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -818,8 +818,7 @@ void __init paging_init(void) * will not set it back. */ node_clear_state(0, N_MEMORY); - if (N_MEMORY != N_NORMAL_MEMORY) - node_clear_state(0, N_NORMAL_MEMORY); + node_clear_state(0, N_NORMAL_MEMORY); zone_sizes_init(); } -- 2.17.2