Cleanup: remove trailing whitespaces at EOL

[urcu.git] / urcu / static / urcu-pointer.h

diff --git a/urcu/static/urcu-pointer.h b/urcu/static/urcu-pointer.h
index 4361156b925f515bd6cfe231861f8b228284745d..28333c57746e927bfc44e06e0a9fcc2b0e4794e2 100644 (file)
--- a/urcu/static/urcu-pointer.h
+++ b/urcu/static/urcu-pointer.h
@@ -36,7 +36,7 @@
 
 #ifdef __cplusplus
 extern "C" {
-#endif 
+#endif
 
 /**
  * _rcu_dereference - reads (copy) a RCU-protected pointer to a local variable
@@ -64,7 +64,9 @@ extern "C" {
  * meets the 10-line criterion in LGPL, allowing this function to be
  * expanded directly in non-LGPL code.
  */
-#define _rcu_dereference(p)     ({                                     \
+#define _rcu_dereference(p)                                            \
+                               __extension__                           \
+                               ({                                      \
                                __typeof__(p) _________p1 = CMM_LOAD_SHARED(p); \
                                cmm_smp_read_barrier_depends();         \
                                (_________p1);                          \
@@ -82,6 +84,7 @@ extern "C" {
  * expanded directly in non-LGPL code.
  */
 #define _rcu_cmpxchg_pointer(p, old, _new)                             \
+       __extension__                                                   \
        ({                                                              \
                __typeof__(*p) _________pold = (old);                   \
                __typeof__(*p) _________pnew = (_new);                  \
@@ -101,6 +104,7 @@ extern "C" {
  * expanded directly in non-LGPL code.
  */
 #define _rcu_xchg_pointer(p, v)                                \
+       __extension__                                   \
        ({                                              \
                __typeof__(*p) _________pv = (v);       \
                if (!__builtin_constant_p(v) ||         \
@@ -129,7 +133,7 @@ extern "C" {
  * them. It also makes sure the compiler does not reorder code initializing the
  * data structure before its publication.
  *
- * Should match rcu_dereference_pointer().
+ * Should match rcu_dereference().
  *
  * This macro is less than 10 lines long.  The intent is that this macro
  * meets the 10-line criterion in LGPL, allowing this function to be
@@ -137,7 +141,7 @@ extern "C" {
  */
 #define _rcu_assign_pointer(p, v)      _rcu_set_pointer(&(p), v)
 
-#ifdef __cplusplus 
+#ifdef __cplusplus
 }
 #endif