From 1f9ee225873c48831bbfaf8841aab1c68fefc450 Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Wed, 22 Aug 2018 21:45:41 +0800
Subject: [PATCH] test,common: silence -Wunused-variable warnings

if compiled with -NDEBUG, assert() is optimised out.

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 src/common/Cond.h           | 2 +-
 src/common/config_obs_mgr.h | 2 +-
 src/include/on_exit.h       | 2 +-
 src/test/bufferlist.cc      | 4 ++--
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/common/Cond.h b/src/common/Cond.h
index 949f2933432cc..00c6cdcce2662 100644
--- a/src/common/Cond.h
+++ b/src/common/Cond.h
@@ -30,7 +30,7 @@ class Cond {
 
  public:
   Cond() : waiter_mutex(NULL) {
-    int r = pthread_cond_init(&_c,NULL);
+    [[maybe_unused]] int r = pthread_cond_init(&_c,NULL);
     assert(r == 0);
   }
   virtual ~Cond() { 
diff --git a/src/common/config_obs_mgr.h b/src/common/config_obs_mgr.h
index 2da4cb0f059be..170b4d63bd8a0 100644
--- a/src/common/config_obs_mgr.h
+++ b/src/common/config_obs_mgr.h
@@ -67,7 +67,7 @@ void ObserverMgr<ConfigObs>::add_observer(ConfigObs* observer)
 template<class ConfigObs>
 void ObserverMgr<ConfigObs>::remove_observer(ConfigObs* observer)
 {
-  bool found_obs = false;
+  [[maybe_unused]] bool found_obs = false;
   for (auto o = observers.begin(); o != observers.end(); ) {
     if (o->second == observer) {
       observers.erase(o++);
diff --git a/src/include/on_exit.h b/src/include/on_exit.h
index 6510feffb9c2b..47d222c7cc132 100644
--- a/src/include/on_exit.h
+++ b/src/include/on_exit.h
@@ -15,7 +15,7 @@ class OnExitManager {
     typedef void (*callback_t)(void *arg);
 
     OnExitManager() {
-      int ret = pthread_mutex_init(&lock_, NULL);
+      [[maybe_unused]] int ret = pthread_mutex_init(&lock_, NULL);
       assert(ret == 0);
     }
 
diff --git a/src/test/bufferlist.cc b/src/test/bufferlist.cc
index 4e8a21f00fbfc..fdcbdd3c245b3 100644
--- a/src/test/bufferlist.cc
+++ b/src/test/bufferlist.cc
@@ -2577,8 +2577,8 @@ TEST(BufferList, crc32c_append_perf) {
   // track usage of cached crcs
   buffer::track_cached_crc(true);
 
-  int base_cached = buffer::get_cached_crc();
-  int base_cached_adjusted = buffer::get_cached_crc_adjusted();
+  [[maybe_unused]] int base_cached = buffer::get_cached_crc();
+  [[maybe_unused]] int base_cached_adjusted = buffer::get_cached_crc_adjusted();
 
   bufferlist bla;
   bla.push_back(a);
-- 
2.39.5