From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932807AbcBXFO5 (ORCPT ); Wed, 24 Feb 2016 00:14:57 -0500 Received: from e18.ny.us.ibm.com ([129.33.205.208]:41263 "EHLO e18.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757909AbcBXFNB (ORCPT ); Wed, 24 Feb 2016 00:13:01 -0500 X-IBM-Helo: d01dlp01.pok.ibm.com X-IBM-MailFrom: paulmck@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com, Chen Gang , Chen Gang , "Paul E. McKenney" Subject: [PATCH tip/core/rcu 06/13] rcu: Remove useless rcu_data_p when !PREEMPT_RCU Date: Tue, 23 Feb 2016 21:12:43 -0800 Message-Id: <1456290770-18659-6-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 2.5.2 In-Reply-To: <20160224051221.GA17099@linux.vnet.ibm.com> References: <20160224051221.GA17099@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16022405-0045-0000-0000-0000036A5F55 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen Gang 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 --- 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 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; 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 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. -- 2.5.2