rcu: Semicolon inside RCU_TRACE() for tree.c

The current use of "RCU_TRACE(statement);" can cause odd bugs, especially
where "statement" is a local-variable declaration, as it can leave a
misplaced ";" in the source code.  This commit therefore converts these
to "RCU_TRACE(statement;)", which avoids the misplaced ";".

Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 0efad31..3747277 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2793,14 +2793,14 @@ static void rcu_adopt_orphan_cbs(struct rcu_state *rsp, unsigned long flags)
  */
 static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
 {
-       RCU_TRACE(unsigned long mask);
-       RCU_TRACE(struct rcu_data *rdp = this_cpu_ptr(rsp->rda));
-       RCU_TRACE(struct rcu_node *rnp = rdp->mynode);
+       RCU_TRACE(unsigned long mask;)
+       RCU_TRACE(struct rcu_data *rdp = this_cpu_ptr(rsp->rda);)
+       RCU_TRACE(struct rcu_node *rnp = rdp->mynode;)
 
        if (!IS_ENABLED(CONFIG_HOTPLUG_CPU))
                return;
 
-       RCU_TRACE(mask = rdp->grpmask);
+       RCU_TRACE(mask = rdp->grpmask;)
        trace_rcu_grace_period(rsp->name,
                               rnp->gpnum + 1 - !!(rnp->qsmask & mask),
                               TPS("cpuofl"));