diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index aecbfd0b883a..7d145ae70416 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -12,8 +12,6 @@
 #include <linux/stacktrace.h>
 #include <linux/ftrace.h>
 
-register unsigned long sp_in_global __asm__("sp");
-
 #ifdef CONFIG_FRAME_POINTER
 
 struct stackframe {
@@ -21,6 +19,8 @@ struct stackframe {
 	unsigned long ra;
 };
 
+register unsigned long sp_in_global __asm__("sp");
+
 void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
 			     bool (*fn)(unsigned long, void *), void *arg)
 {