[v2,15/17] arm64: kprobes: fix kprobes without CONFIG_KRETPROBES
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Message ID 20191024225132.13410-16-samitolvanen@google.com
State New
Headers show
Series
  • [v2,01/17] arm64: mm: don't use x18 in idmap_kpti_install_ng_mappings
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Commit Message

Sami Tolvanen Oct. 24, 2019, 10:51 p.m. UTC
This allows CONFIG_KRETPROBES to be disabled without disabling
kprobes entirely.

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

Patch
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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)
 {