diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index abf0df700fd0..6f3b9a9cc123 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -512,10 +512,22 @@ static int signr_convert(int sig)
 	return sig;
 }
 
+#ifdef CONFIG_X86_32
+
 #define is_ia32	1
 #define ia32_setup_frame	__setup_frame
 #define ia32_setup_rt_frame	__setup_rt_frame
 
+#else /* !CONFIG_X86_32 */
+
+#ifdef CONFIG_IA32_EMULATION
+#define is_ia32	test_thread_flag(TIF_IA32)
+#else /* !CONFIG_IA32_EMULATION */
+#define is_ia32	0
+#endif /* CONFIG_IA32_EMULATION */
+
+#endif /* CONFIG_X86_32 */
+
 static int
 setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	       sigset_t *set, struct pt_regs *regs)
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index a4b46e6392b1..49df79e05111 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -304,11 +304,21 @@ static int signr_convert(int sig)
 	return sig;
 }
 
+#ifdef CONFIG_X86_32
+
+#define is_ia32	1
+#define ia32_setup_frame	__setup_frame
+#define ia32_setup_rt_frame	__setup_rt_frame
+
+#else /* !CONFIG_X86_32 */
+
 #ifdef CONFIG_IA32_EMULATION
 #define is_ia32	test_thread_flag(TIF_IA32)
-#else
+#else /* !CONFIG_IA32_EMULATION */
 #define is_ia32	0
-#endif
+#endif /* CONFIG_IA32_EMULATION */
+
+#endif /* CONFIG_X86_32 */
 
 static int
 setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,