3 files changed, 9 insertions, 48 deletions
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index d9e462eafb95..0c5d408afd95 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -292,8 +292,8 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
 	return 0;
 }
 
-static int __kprobes
-kprobe_breakpoint_handler(struct pt_regs *regs, unsigned long esr)
+int __kprobes
+kprobe_brk_handler(struct pt_regs *regs, unsigned long esr)
 {
 	struct kprobe *p, *cur_kprobe;
 	struct kprobe_ctlblk *kcb;
@@ -336,13 +336,8 @@ kprobe_breakpoint_handler(struct pt_regs *regs, unsigned long esr)
 	return DBG_HOOK_HANDLED;
 }
 
-static struct break_hook kprobes_break_hook = {
-	.imm = KPROBES_BRK_IMM,
-	.fn = kprobe_breakpoint_handler,
-};
-
-static int __kprobes
-kprobe_breakpoint_ss_handler(struct pt_regs *regs, unsigned long esr)
+int __kprobes
+kprobe_ss_brk_handler(struct pt_regs *regs, unsigned long esr)
 {
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 	unsigned long addr = instruction_pointer(regs);
@@ -360,13 +355,8 @@ kprobe_breakpoint_ss_handler(struct pt_regs *regs, unsigned long esr)
 	return DBG_HOOK_ERROR;
 }
 
-static struct break_hook kprobes_break_ss_hook = {
-	.imm = KPROBES_BRK_SS_IMM,
-	.fn = kprobe_breakpoint_ss_handler,
-};
-
-static int __kprobes
-kretprobe_breakpoint_handler(struct pt_regs *regs, unsigned long esr)
+int __kprobes
+kretprobe_brk_handler(struct pt_regs *regs, unsigned long esr)
 {
 	if (regs->pc != (unsigned long)__kretprobe_trampoline)
 		return DBG_HOOK_ERROR;
@@ -375,11 +365,6 @@ kretprobe_breakpoint_handler(struct pt_regs *regs, unsigned long esr)
 	return DBG_HOOK_HANDLED;
 }
 
-static struct break_hook kretprobes_break_hook = {
-	.imm = KRETPROBES_BRK_IMM,
-	.fn = kretprobe_breakpoint_handler,
-};
-
 /*
  * Provide a blacklist of symbols identifying ranges which cannot be kprobed.
  * This blacklist is exposed to userspace via debugfs (kprobes/blacklist).
@@ -422,9 +407,5 @@ int __kprobes arch_trampoline_kprobe(struct kprobe *p)
 
 int __init arch_init_kprobes(void)
 {
-	register_kernel_break_hook(&kprobes_break_hook);
-	register_kernel_break_hook(&kprobes_break_ss_hook);
-	register_kernel_break_hook(&kretprobes_break_hook);
-
 	return 0;
 }
diff --git a/arch/arm64/kernel/probes/kprobes_trampoline.S b/arch/arm64/kernel/probes/kprobes_trampoline.S
index a362f3dbb3d1..b60739d3983f 100644
--- a/arch/arm64/kernel/probes/kprobes_trampoline.S
+++ b/arch/arm64/kernel/probes/kprobes_trampoline.S
@@ -12,7 +12,7 @@
 SYM_CODE_START(__kretprobe_trampoline)
 	/*
 	 * Trigger a breakpoint exception. The PC will be adjusted by
-	 * kretprobe_breakpoint_handler(), and no subsequent instructions will
+	 * kretprobe_brk_handler(), and no subsequent instructions will
 	 * be executed from the trampoline.
 	 */
 	brk #KRETPROBES_BRK_IMM
diff --git a/arch/arm64/kernel/probes/uprobes.c b/arch/arm64/kernel/probes/uprobes.c
index cb3d05af36e3..1f91fd2a8187 100644
--- a/arch/arm64/kernel/probes/uprobes.c
+++ b/arch/arm64/kernel/probes/uprobes.c
@@ -173,7 +173,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self,
 	return NOTIFY_DONE;
 }
 
-static int uprobe_breakpoint_handler(struct pt_regs *regs,
+int uprobe_brk_handler(struct pt_regs *regs,
 				     unsigned long esr)
 {
 	if (uprobe_pre_sstep_notifier(regs))
@@ -182,7 +182,7 @@ static int uprobe_breakpoint_handler(struct pt_regs *regs,
 	return DBG_HOOK_ERROR;
 }
 
-static int uprobe_single_step_handler(struct pt_regs *regs,
+int uprobe_single_step_handler(struct pt_regs *regs,
 				      unsigned long esr)
 {
 	struct uprobe_task *utask = current->utask;
@@ -194,23 +194,3 @@ static int uprobe_single_step_handler(struct pt_regs *regs,
 	return DBG_HOOK_ERROR;
 }
 
-/* uprobe breakpoint handler hook */
-static struct break_hook uprobes_break_hook = {
-	.imm = UPROBES_BRK_IMM,
-	.fn = uprobe_breakpoint_handler,
-};
-
-/* uprobe single step handler hook */
-static struct step_hook uprobes_step_hook = {
-	.fn = uprobe_single_step_handler,
-};
-
-static int __init arch_init_uprobes(void)
-{
-	register_user_break_hook(&uprobes_break_hook);
-	register_user_step_hook(&uprobes_step_hook);
-
-	return 0;
-}
-
-device_initcall(arch_init_uprobes);