Messages in this thread Patch in this message | | | From | "Masami Hiramatsu (Google)" <> | Subject | [PATCH v2 2/3] arm64: kprobes: Let arch do_page_fault() fix up page fault in user handler | Date | Fri, 2 Dec 2022 11:18:42 +0900 |
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From: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Since arm64's do_page_fault() can handle the page fault correctly than kprobe_fault_handler() according to the context, let it handle the page fault instead of simply call fixup_exception() in the kprobe_fault_handler().
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> --- arch/arm64/kernel/probes/kprobes.c | 8 -------- 1 file changed, 8 deletions(-)
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index c9e4d0720285..d2ae37f89774 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -294,14 +294,6 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr) } break; - case KPROBE_HIT_ACTIVE: - case KPROBE_HIT_SSDONE: - /* - * In case the user-specified fault handler returned - * zero, try to fix up. - */ - if (fixup_exception(regs)) - return 1; } return 0; }
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