1 files changed, 7 insertions, 2 deletions

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 9b4f11094937..0780de440220 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -14,7 +14,7 @@
 # define __releases(x)  __attribute__((context(1,0)))
 # define __acquire(x)   __context__(1)
 # define __release(x)   __context__(-1)
-# define __cond_lock(x) ((x) ? ({ __context__(1); 1; }) : 0)
+# define __cond_lock(x,c)       ((c) ? ({ __acquire(x); 1; }) : 0)
 extern void __chk_user_ptr(void __user *);
 extern void __chk_io_ptr(void __iomem *);
 #else
@@ -31,7 +31,7 @@ extern void __chk_io_ptr(void __iomem *);
 # define __releases(x)
 # define __acquire(x) (void)0
 # define __release(x) (void)0
-# define __cond_lock(x) (x)
+# define __cond_lock(x,c) (c)
 #endif
 
 #ifdef __KERNEL__
@@ -99,6 +99,11 @@ extern void __chk_io_ptr(void __iomem *);
 #define __must_check
 #endif
 
+#ifndef CONFIG_ENABLE_MUST_CHECK
+#undef __must_check
+#define __must_check
+#endif
+
 /*
  * Allow us to avoid 'defined but not used' warnings on functions and data,
  * as well as force them to be emitted to the assembly file.