X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=include%2Flinux%2Fcompiler.h;h=fe817432190c1cfb4c3108bbdfaf71b22916b8f8;hb=b831ef2cad979912850e34f82415c0c5d59de8cb;hp=3d7810341b579795398e36cb15597feb344bb912;hpb=ef594c421a0f96197f28d205e2ee58a83c1e0e37;p=karo-tx-linux.git

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 3d7810341b57..fe817432190c 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -299,22 +299,6 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 	__u.__val;					\
 })
 
-/**
- * READ_ONCE_CTRL - Read a value heading a control dependency
- * @x: The value to be read, heading the control dependency
- *
- * Control dependencies are tricky.  See Documentation/memory-barriers.txt
- * for important information on how to use them.  Note that in many cases,
- * use of smp_load_acquire() will be much simpler.  Control dependencies
- * should be avoided except on the hottest of hotpaths.
- */
-#define READ_ONCE_CTRL(x) \
-({ \
-	typeof(x) __val = READ_ONCE(x); \
-	smp_read_barrier_depends(); /* Enforce control dependency. */ \
-	__val; \
-})
-
 #endif /* __KERNEL__ */
 
 #endif /* __ASSEMBLY__ */