From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 2/2] rcu: fix sparse warnings
Date: Thu, 14 Jan 2010 16:10:58 -0800 [thread overview]
Message-ID: <12635142581560-git-send-email-> (raw)
In-Reply-To: <20100115001021.GA25878@linux.vnet.ibm.com>
From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Rename local variable "i" in rcu_init() to avoid conflict with
RCU_INIT_FLAVOR(), restrict the scope of RCU_TREE_NONCORE, and
make __synchronize_srcu() static.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/rcutree.c | 6 +++---
kernel/rcutree.h | 6 ++----
kernel/srcu.c | 2 +-
3 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 3b13d64..099a255 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1888,7 +1888,7 @@ do { \
void __init rcu_init(void)
{
- int i;
+ int cpu;
rcu_bootup_announce();
#ifdef CONFIG_RCU_CPU_STALL_DETECTOR
@@ -1908,8 +1908,8 @@ void __init rcu_init(void)
* or the scheduler are operational.
*/
cpu_notifier(rcu_cpu_notify, 0);
- for_each_online_cpu(i)
- rcu_cpu_notify(NULL, CPU_UP_PREPARE, (void *)(long)i);
+ for_each_online_cpu(cpu)
+ rcu_cpu_notify(NULL, CPU_UP_PREPARE, (void *)(long)cpu);
}
#include "rcutree_plugin.h"
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index bd5d78a..d9d032a 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -323,8 +323,6 @@ struct rcu_state {
#define RCU_OFL_TASKS_EXP_GP 0x2 /* Tasks blocking expedited */
/* GP were moved to root. */
-#ifdef RCU_TREE_NONCORE
-
/*
* RCU implementation internal declarations:
*/
@@ -339,7 +337,7 @@ extern struct rcu_state rcu_preempt_state;
DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-#else /* #ifdef RCU_TREE_NONCORE */
+#ifndef RCU_TREE_NONCORE
/* Forward declarations for rcutree_plugin.h */
static void rcu_bootup_announce(void);
@@ -372,4 +370,4 @@ static void __cpuinit rcu_preempt_init_percpu_data(int cpu);
static void rcu_preempt_send_cbs_to_orphanage(void);
static void __init __rcu_init_preempt(void);
-#endif /* #else #ifdef RCU_TREE_NONCORE */
+#endif /* #ifndef RCU_TREE_NONCORE */
diff --git a/kernel/srcu.c b/kernel/srcu.c
index 818d7d9..31b275b 100644
--- a/kernel/srcu.c
+++ b/kernel/srcu.c
@@ -144,7 +144,7 @@ EXPORT_SYMBOL_GPL(srcu_read_unlock);
/*
* Helper function for synchronize_srcu() and synchronize_srcu_expedited().
*/
-void __synchronize_srcu(struct srcu_struct *sp, void (*sync_func)(void))
+static void __synchronize_srcu(struct srcu_struct *sp, void (*sync_func)(void))
{
int idx;
--
1.5.2.5
next prev parent reply other threads:[~2010-01-15 0:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-15 0:10 [PATCH tip/core/rcu 0/2] Update RCU documentation and fix sparse warnings Paul E. McKenney
2010-01-15 0:10 ` [PATCH tip/core/rcu 1/2] rcu: 1Q2010 update for RCU documentation Paul E. McKenney
2010-01-16 9:44 ` [tip:core/rcu] " tip-bot for Paul E. McKenney
2010-01-15 0:10 ` Paul E. McKenney [this message]
2010-01-16 9:45 ` [tip:core/rcu] rcu: Fix sparse warnings tip-bot for Paul E. McKenney
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