From: Michael Jeanson <mjeanson@efficios.com>
Date: Wed, 14 Apr 2021 14:14:37 +0000 (-0400)
Subject: fix: warnings on non-Linux platforms
X-Git-Tag: v0.12.3~16
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=0d657320a24b17ad7762396c5ef5db3640262af4;p=userspace-rcu.git

fix: warnings on non-Linux platforms

Add the relevent attributes in non-Linux wrapper code.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Icb2b71345f9e67fe5b10d96f883b1f599d2b6bb9
---

diff --git a/include/urcu/futex.h b/include/urcu/futex.h
index f720cdc..e89d319 100644
--- a/include/urcu/futex.h
+++ b/include/urcu/futex.h
@@ -110,7 +110,9 @@ static inline int futex_async(int32_t *uaddr, int op, int32_t val,
 #include <sys/umtx.h>
 
 static inline int futex_async(int32_t *uaddr, int op, int32_t val,
-		const struct timespec *timeout, int32_t *uaddr2, int32_t val3)
+		const struct timespec *timeout,
+		int32_t *uaddr2 __attribute__((unused)),
+		int32_t val3 __attribute__((unused)))
 {
 	int umtx_op;
 	void *umtx_uaddr = NULL, *umtx_uaddr2 = NULL;
diff --git a/src/urcu-bp.c b/src/urcu-bp.c
index c2ac792..671becb 100644
--- a/src/urcu-bp.c
+++ b/src/urcu-bp.c
@@ -75,8 +75,10 @@ void *mremap_wrapper(void *old_address, size_t old_size,
  * This is not generic.
 */
 static
-void *mremap_wrapper(void *old_address, size_t old_size,
-		size_t new_size, int flags)
+void *mremap_wrapper(void *old_address __attribute__((unused)),
+		size_t old_size __attribute__((unused)),
+		size_t new_size __attribute__((unused)),
+		int flags)
 {
 	assert(!(flags & MREMAP_MAYMOVE));
 
diff --git a/src/urcu-call-rcu-impl.h b/src/urcu-call-rcu-impl.h
index a3018ba..a9c0e4d 100644
--- a/src/urcu-call-rcu-impl.h
+++ b/src/urcu-call-rcu-impl.h
@@ -233,7 +233,7 @@ int set_thread_cpu_affinity(struct call_rcu_data *crdp)
 }
 #else
 static
-int set_thread_cpu_affinity(struct call_rcu_data *crdp)
+int set_thread_cpu_affinity(struct call_rcu_data *crdp __attribute__((unused)))
 {
 	return 0;
 }
diff --git a/src/workqueue.c b/src/workqueue.c
index c2c9b9c..94bd514 100644
--- a/src/workqueue.c
+++ b/src/workqueue.c
@@ -124,7 +124,7 @@ static int set_thread_cpu_affinity(struct urcu_workqueue *workqueue)
 	return ret;
 }
 #else
-static int set_thread_cpu_affinity(struct urcu_workqueue *workqueue)
+static int set_thread_cpu_affinity(struct urcu_workqueue *workqueue __attribute__((unused)))
 {
 	return 0;
 }
diff --git a/tests/common/api.h b/tests/common/api.h
index 32d594a..e5c70ab 100644
--- a/tests/common/api.h
+++ b/tests/common/api.h
@@ -229,9 +229,9 @@ static void wait_all_threads(void)
 	}
 }
 
+#ifdef HAVE_SCHED_SETAFFINITY
 static void run_on(int cpu)
 {
-#ifdef HAVE_SCHED_SETAFFINITY
 	cpu_set_t mask;
 
 	CPU_ZERO(&mask);
@@ -241,8 +241,12 @@ static void run_on(int cpu)
 #else
 	sched_setaffinity(0, sizeof(mask), &mask);
 #endif
-#endif /* HAVE_SCHED_SETAFFINITY */
 }
+#else
+
+static void run_on(int cpu __attribute__((unused)))
+{}
+#endif /* HAVE_SCHED_SETAFFINITY */
 
 /*
  * timekeeping -- very crude -- should use MONOTONIC...
diff --git a/tests/regression/rcutorture.h b/tests/regression/rcutorture.h
index 0c5c895..ac5348c 100644
--- a/tests/regression/rcutorture.h
+++ b/tests/regression/rcutorture.h
@@ -531,6 +531,9 @@ int stresstest(int nreaders)
  * Mainprogram.
  */
 
+static
+void usage(char *argv[]) __attribute__((noreturn));
+
 static
 void usage(char *argv[])
 {