diff options
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 11f5b03a0b06..560f430da478 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -104,13 +104,13 @@ void __kprobes arch_remove_kprobe(struct kprobe *p) static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) { - /* We turn off async exceptions to ensure that the single step will - * be for the instruction we have the kprobe on, if we dont its - * possible we'd get the single step reported for an exception handler - * like Decrementer or External Interrupt */ - regs->msr &= ~MSR_EE; regs->msr |= MSR_SINGLESTEP; #ifdef CONFIG_PPC_ADV_DEBUG_REGS + /* + * We turn off Critical Input Exception(CE) to ensure that the single + * step will be for the instruction we have the probe on; if we don't, + * it is possible we'd get the single step reported for CE. + */ regs->msr &= ~MSR_CE; mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_IC | DBCR0_IDM); #ifdef CONFIG_PPC_47x |