arch_max_pkey
if (pkey < 0 || pkey >= arch_max_pkey())
u8 all_pkeys_mask = GENMASK(arch_max_pkey() - 1, 0);
for (int pkey = 0; pkey < arch_max_pkey(); pkey++)
if (WARN_ON_ONCE(pkey >= arch_max_pkey()))
if (pkey < 0 || pkey >= arch_max_pkey())
if (pkey >= arch_max_pkey())
u16 all_pkeys_mask = ((1U << arch_max_pkey()) - 1);
if (WARN_ON_ONCE(pkey >= arch_max_pkey()))