--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/compat.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/include/asm/compat.h	2021-11-10 11:53:53.000000000 +0000
@@ -298,7 +298,13 @@
 
 static inline int is_compat_task(void)
 {
+#ifdef CONFIG_MIPS32_O32
+	return test_thread_flag(TIF_32BIT_REGS);
+#elif defined(CONFIG_MIPS32_N32)
 	return test_thread_flag(TIF_32BIT_ADDR);
+#else
+#error No MIPS32 compatibility mode defined
+#endif /* CONFIG_MIPS32_O32 */
 }
 
 #endif /* _ASM_COMPAT_H */