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Message-Id: <20191018161033.261971-17-samitolvanen@google.com>
Date: Fri, 18 Oct 2019 09:10:31 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Will Deacon <will@...nel.org>, Catalin Marinas <catalin.marinas@....com>, 
	Steven Rostedt <rostedt@...dmis.org>, Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Dave Martin <Dave.Martin@....com>, Kees Cook <keescook@...omium.org>, 
	Laura Abbott <labbott@...hat.com>, Mark Rutland <mark.rutland@....com>, 
	Nick Desaulniers <ndesaulniers@...gle.com>, clang-built-linux@...glegroups.com, 
	kernel-hardening@...ts.openwall.com, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH 16/18] arm64: kprobes: fix kprobes without CONFIG_KRETPROBES

This allows CONFIG_KRETPROBES to be disabled without disabling
kprobes entirely.

Signed-off-by: Sami Tolvanen <samitolvanen@...gle.com>
---
 arch/arm64/kernel/probes/kprobes.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index c4452827419b..98230ae979ca 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -551,6 +551,7 @@ void __kprobes __used *trampoline_probe_handler(struct pt_regs *regs)
 	return (void *)orig_ret_address;
 }
 
+#ifdef CONFIG_KRETPROBES
 void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
@@ -564,6 +565,7 @@ int __kprobes arch_trampoline_kprobe(struct kprobe *p)
 {
 	return 0;
 }
+#endif
 
 int __init arch_init_kprobes(void)
 {
-- 
2.23.0.866.gb869b98d4c-goog

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