Use NOKPROBE_SYMBOL macro to protect functions from kprobes
instead of __kprobe annotation in hw_breakpoint.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
---
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)
{
--
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