The rcu_state, rcu_rnp_online_cpus and rcu_dynticks_curr_cpu_in_eqs do not have declarations in a header. Add these to remove the following sparse warnings:
kernel/rcu/tree.c:87:18: warning: symbol 'rcu_state' was not declared. Should it be static? kernel/rcu/tree.c:191:15: warning: symbol 'rcu_rnp_online_cpus' was not declared. Should it be static? kernel/rcu/tree.c:297:6: warning: symbol 'rcu_dynticks_curr_cpu_in_eqs' was not declared. Should it be static? Signed-off-by: Ben Dooks <[email protected]> --- Cc: "Paul E. McKenney" <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Mathieu Desnoyers <[email protected]> Cc: Lai Jiangshan <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: [email protected] Cc: [email protected] --- kernel/rcu/tree.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index c612f306fe89..1f88351b9014 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -352,6 +352,8 @@ struct rcu_state { /* GP pre-initialization. */ }; +extern struct rcu_state rcu_state; + /* Values for rcu_state structure's gp_flags field. */ #define RCU_GP_FLAG_INIT 0x1 /* Need grace-period initialization. */ #define RCU_GP_FLAG_FQS 0x2 /* Need grace-period quiescent-state forcing. */ @@ -472,3 +474,7 @@ static void rcu_iw_handler(struct irq_work *iwp); static void check_cpu_stall(struct rcu_data *rdp); static void rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp, const unsigned long gpssdelay); + +extern unsigned long rcu_rnp_online_cpus(struct rcu_node *rnp); +extern bool rcu_dynticks_curr_cpu_in_eqs(void); + -- 2.23.0
