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-rw-r--r--arch/arm64/mm/mmu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index b98f89420713..ea6695d53fb9 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1361,7 +1361,8 @@ int arch_add_memory(int nid, u64 start, u64 size,
__remove_pgd_mapping(swapper_pg_dir,
__phys_to_virt(start), size);
else {
- max_pfn = PFN_UP(start + size);
+ /* Address of hotplugged memory can be smaller */
+ max_pfn = max(max_pfn, PFN_UP(start + size));
max_low_pfn = max_pfn;
}