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arm64/kernel/probes: Use BUG_ON instead of if condition followed by BUG. 

It can be optimized at compile time.

Signed-off-by: zhouchuangao <zhouchuangao@vivo.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/1617105472-6081-1-git-send-email-zhouchuangao@vivo.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
zhouchuangao 2021-03-30 04:57:50 -07:00 committed by Catalin Marinas
parent ef9c5d0979
commit 839157876f
1 changed files with 1 additions and 2 deletions
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3
arch/arm64/kernel/probes/kprobes.c
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@ -264,8 +264,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
* normal page fault.
*/
instruction_pointer_set(regs, (unsigned long) cur->addr);
if (!instruction_pointer(regs))
BUG();
BUG_ON(!instruction_pointer(regs));
if (kcb->kprobe_status == KPROBE_REENTER)
restore_previous_kprobe(kcb);