Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c92fb057 authored by Nicolas Iooss's avatar Nicolas Iooss Committed by Paul E. McKenney
Browse files

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 11bbb235 ("rcu: Use DEFINE_PER_CPU_SHARED_ALIGNED for
rcu_data").

Signed-off-by: default avatarNicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 30ff1533

kernel/rcu/tree.c

+1 −1
Original line number Diff line number Diff line
@@ -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, \

kernel/rcu/tree.h

+0 −3
Original line number Diff line number Diff line
@@ -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