arch_max_pkey 92 arch/powerpc/include/asm/pkeys.h if (pkey < 0 || pkey >= arch_max_pkey()) arch_max_pkey 64 arch/x86/include/asm/pkeys.h if (pkey >= arch_max_pkey()) arch_max_pkey 89 arch/x86/include/asm/pkeys.h u16 all_pkeys_mask = ((1U << arch_max_pkey()) - 1);