add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/x86/lib/cache-smp.c
..
..
@@ -15,6 +15,7 @@
15
15
 
16
16
 int wbinvd_on_all_cpus(void)
17
17
 {
18
-	return on_each_cpu(__wbinvd, NULL, 1);
18
+	on_each_cpu(__wbinvd, NULL, 1);
19
+	return 0;
19
20
 }
20
21
 EXPORT_SYMBOL(wbinvd_on_all_cpus);