kernel: add volatile var read/write macros

2023-03-19 20:36:13 +00:00
parent ae848e9776
commit 7e26050bde
1 changed files with 3 additions and 0 deletions
--- a/include/socks/compiler.h
+++ b/include/socks/compiler.h
@@ -1,6 +1,9 @@
 #ifndef SOCKS_COMPILER_H_
 #define SOCKS_COMPILER_H_

+#define READ_ONCE(p) (*((const volatile typeof(p) *)&(p)))
+#define WRITE_ONCE(p, v) *(volatile typeof(p) *)&(p) = (v)
+
 #undef __used
 #define __used __attribute__((used))