summaryrefslogtreecommitdiffstats
path: root/kernel/rcu
diff options
context:
space:
mode:
authorNicolas Iooss <nicolas.iooss_linux@m4x.org>2015-05-05 21:57:06 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-05-27 12:58:03 -0700
commitc92fb05795f57463cb763a82f9053d294f77ea87 (patch)
treebca210a3cb3ee807c1d42137d94f3f2084f39f9e /kernel/rcu
parent30ff1533b8f75255bdf02bc3361f1c558138f471 (diff)
downloadop-kernel-dev-c92fb05795f57463cb763a82f9053d294f77ea87.zip
op-kernel-dev-c92fb05795f57463cb763a82f9053d294f77ea87.tar.gz
rcu: Make rcu_*_data variables static
rcu_bh_data, rcu_sched_data and rcu_preempt_data are never used outside kernel/rcu/tree.c and thus can be made static. Doing so fixes a section mismatch warning reported by clang when building LLVMLinux with -Wsection, because these variables were declared in .data..percpu and defined in .data..percpu..shared_aligned since commit 11bbb235c26f ("rcu: Use DEFINE_PER_CPU_SHARED_ALIGNED for rcu_data"). Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree.c2
-rw-r--r--kernel/rcu/tree.h3
2 files changed, 1 insertions, 4 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index f02830c..6efb0b6 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -91,7 +91,7 @@ static const char *tp_##sname##_varname __used __tracepoint_string = sname##_var
#define RCU_STATE_INITIALIZER(sname, sabbr, cr) \
DEFINE_RCU_TPS(sname) \
-DEFINE_PER_CPU_SHARED_ALIGNED(struct rcu_data, sname##_data); \
+static DEFINE_PER_CPU_SHARED_ALIGNED(struct rcu_data, sname##_data); \
struct rcu_state sname##_state = { \
.level = { &sname##_state.node[0] }, \
.rda = &sname##_data, \
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index dd5ce40..8079c5b 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -517,14 +517,11 @@ extern struct list_head rcu_struct_flavors;
* RCU implementation internal declarations:
*/
extern struct rcu_state rcu_sched_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_sched_data);
extern struct rcu_state rcu_bh_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);
#ifdef CONFIG_PREEMPT_RCU
extern struct rcu_state rcu_preempt_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
#endif /* #ifdef CONFIG_PREEMPT_RCU */
#ifdef CONFIG_RCU_BOOST
OpenPOWER on IntegriCloud