trap_is_syscall
if (mmu_has_feature(MMU_FTR_PKEY) && trap_is_syscall(regs)) {
if (trap_is_syscall(regs))
if (!trap_is_syscall(regs) && cpu_has_feature(CPU_FTR_CFAR))
if (!trap_is_syscall(regs))
if (!trap_is_syscall(fp) && cpu_has_feature(CPU_FTR_CFAR)) {