diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 577f342dbfb27..5c7904c97a1a7 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -834,7 +834,7 @@ 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 bc9b4b93cf9bc..e6b28c689e9a9 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -731,7 +731,7 @@ 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 758c0ba8de350..3ef767284b3f0 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -181,6 +181,7 @@ 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)