1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef LINUX_COMPILER_H 3 #define LINUX_COMPILER_H 4 5 #define WRITE_ONCE(var, val) \ 6 (*((volatile typeof(val) *)(&(var))) = (val)) 7 8 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var)))) 9 10 #endif 11