Messages in this thread Patch in this message | | | From | chengang@emindsof ... | Subject | [PATCH] kernel: rcu: tree: Remove useless rcu_data_p when !PREEMPT_RCU | Date | Sat, 26 Dec 2015 21:41:44 +0800 |
| |
From: Chen Gang <chengang@emindsoft.com.cn>
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 <gang.chen.5i5j@gmail.com> --- kernel/rcu/tree.c | 1 - kernel/rcu/tree_plugin.h | 1 - 2 files changed, 2 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 3a8856f..ed85d66 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; LIST_HEAD(rcu_struct_flavors); /* 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 9467a8b..e6b88ad 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. -- 1.9.3
| |