commit 303be4b33562a5b689261ced1616bf16ad49efa7 upstream. When I do LTP test, LTP test case ksm06 caused panic at break_ksm_pmd_entry -> pmd_leaf (Huge page table but False) -> pte_present (panic) The reason is pmd_leaf() is not defined, So like commit 501b81046701 ("mips: mm: add p?d_leaf() definitions") add p?d_leaf() definition for LoongArch. Fixes: 09cfefb7fa70 ("LoongArch: Add memory management") Cc: stable@vger.kernel.org Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>