TRAP_USERMODE
user = TRAP_USERMODE(tf);
mode = TRAP_USERMODE(tf) ? "user" : "kernel";
if (TRAP_USERMODE(tf))
if (!TRAP_USERMODE(tf))
KDASSERT(TRAP_USERMODE(tf) == 0);
if (__predict_false(!TRAP_USERMODE(tf)))
if (!TRAP_USERMODE(tf) && far >= VM_MIN_KERNEL_ADDRESS)