diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 388541ec77aa..01bcbf8a25b2 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -839,7 +839,7 @@ bool xen_set_default_idle(void);
 #define xen_set_default_idle 0
 #endif
 
-void stop_this_cpu(void *dummy);
+void __noreturn stop_this_cpu(void *dummy);
 void microcode_check(void);
 
 enum l1tf_mitigations {
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 5e17c3939dd1..1cba09a9f1c1 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -720,7 +720,7 @@ bool xen_set_default_idle(void)
 }
 #endif
 
-void stop_this_cpu(void *dummy)
+void __noreturn stop_this_cpu(void *dummy)
 {
 	local_irq_disable();
 	/*
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 985bcc5cea8a..ff47aed7ef6f 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -180,6 +180,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"kunit_try_catch_throw",
 		"xen_start_kernel",
 		"cpu_bringup_and_idle",
+		"stop_this_cpu",
 	};
 
 	if (!func)