path: root/kernel/rcu
diff options
authorChen Gang <>2015-12-26 21:41:44 +0800
committerPaul E. McKenney <>2016-02-23 19:59:53 -0800
commit1914aab54319ed70608078df4f18ac4767753977 (patch)
tree9cb95e628a4615e1f5a9017d00396d7611e20765 /kernel/rcu
parentaa5a8988760142fe33e38790a578bd84ddf3e339 (diff)
rcu: Remove useless rcu_data_p when !PREEMPT_RCU
The related warning from gcc 6.0: In file included from kernel/rcu/tree.c:4630:0: kernel/rcu/tree_plugin.h:810:40: warning: ‘rcu_data_p’ defined but not used [-Wunused-const-variable] static struct rcu_data __percpu *const rcu_data_p = &rcu_sched_data; ^~~~~~~~~~ Also remove always redundant rcu_data_p in tree.c. Signed-off-by: Chen Gang <> Signed-off-by: Paul E. McKenney <>
Diffstat (limited to 'kernel/rcu')
2 files changed, 0 insertions, 2 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 976a166f3fa3..1e44fce73839 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -108,7 +108,6 @@ RCU_STATE_INITIALIZER(rcu_sched, 's', call_rcu_sched);
RCU_STATE_INITIALIZER(rcu_bh, 'b', call_rcu_bh);
static struct rcu_state *const rcu_state_p;
-static struct rcu_data __percpu *const rcu_data_p;
/* Dump rcu_node combining tree at boot to verify correct setup. */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 9467a8b7e756..e6b88ad51959 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -807,7 +807,6 @@ void exit_rcu(void)
#else /* #ifdef CONFIG_PREEMPT_RCU */
static struct rcu_state *const rcu_state_p = &rcu_sched_state;
-static struct rcu_data __percpu *const rcu_data_p = &rcu_sched_data;
* Tell them what RCU they are running.