fixup! x86/deepchain: Instrument call chain even for notrace functions

arch/x86/kernel/cpu/deepchain.c

diff --git a/arch/x86/kernel/cpu/deepchain.c b/arch/x86/kernel/cpu/deepchain.c
index b2ee08e..6001125 100644
--- a/arch/x86/kernel/cpu/deepchain.c
+++ b/arch/x86/kernel/cpu/deepchain.c
@@ -28,7 +28,8 @@ extern char nop5_insn[];
 extern void __visible __return__(void);
 extern void __visible calldepth_hook(void);
 
-void deepchain_patch(unsigned long *entries, unsigned num, void *func, u8 opc)
+static void deepchain_patch(unsigned long *entries, unsigned num, void *func,
+			    u8 opc)
 {
 	unsigned i;