[PATCH -tip v3 12/23] x86/hw_breakpoint: Use NOKPROBE_SYMBOL macro in hw_breakpoint

[Masami Hiramatsu]

Use NOKPROBE_SYMBOL macro to protect functions from kprobes
instead of __kprobe annotation in hw_breakpoint.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
---
 arch/x86/kernel/hw_breakpoint.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index f66ff16..cb4df84 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -425,7 +425,7 @@ EXPORT_SYMBOL_GPL(hw_breakpoint_restore);
  * NOTIFY_STOP returned for all other cases
  *
  */
-static int __kprobes hw_breakpoint_handler(struct die_args *args)
+static int hw_breakpoint_handler(struct die_args *args)
 {
 	int i, cpu, rc = NOTIFY_STOP;
 	struct perf_event *bp;
@@ -508,11 +508,12 @@ static int __kprobes hw_breakpoint_handler(struct die_args *args)
 
 	return rc;
 }
+NOKPROBE_SYMBOL(hw_breakpoint_handler);
 
 /*
  * Handle debug exception notifications.
  */
-int __kprobes hw_breakpoint_exceptions_notify(
+int hw_breakpoint_exceptions_notify(
 		struct notifier_block *unused, unsigned long val, void *data)
 {
 	if (val != DIE_DEBUG)
@@ -520,6 +521,7 @@ int __kprobes hw_breakpoint_exceptions_notify(
 
 	return hw_breakpoint_handler(data);
 }
+NOKPROBE_SYMBOL(hw_breakpoint_exceptions_notify);
 
 void hw_breakpoint_pmu_read(struct perf_event *bp)
 {