[PATCH v2 1/3] tools/liblockdep: add userspace version of READ_ONCE

[Alfredo Alvarez Fernandez]

From: Alfredo Alvarez Fernandez <alfredoalvarezfernandez@xxxxxxxxx>

This was added to the kernel code in <1658d35ead5d> ("list: Use
READ_ONCE() when testing for empty lists")
There's nothing special we need to do about it in userspace.

Signed-off-by: Alfredo Alvarez Fernandez <alfredoalvarezfernandez@xxxxxxxxx>
---
 tools/lib/lockdep/uinclude/linux/compiler.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h
index 6386dc3..fd3e56a 100644
--- a/tools/lib/lockdep/uinclude/linux/compiler.h
+++ b/tools/lib/lockdep/uinclude/linux/compiler.h
@@ -3,6 +3,7 @@
 
 #define __used		__attribute__((__unused__))
 #define unlikely
+#define READ_ONCE(x) (x)
 #define WRITE_ONCE(x, val) x=(val)
 #define RCU_INIT_POINTER(p, v) p=(v)
 
-- 
2.5.0