If CONFIG_TINY_RCU=y: In file included from kernel/rcu/update.c:591: kernel/rcu/tasks.h:710:13: warning: ‘show_rcu_tasks_rude_gp_kthread’ defined but not used [-Wunused-function] static void show_rcu_tasks_rude_gp_kthread(void) {} ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by marking show_rcu_tasks_rude_gp_kthread() inline. Fixes: e21408ceec2de5be ("rcu-tasks: Add RCU tasks to rcutorture writer stall output") Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- Exposed by commit 1e6c62a882155772 ("bpf: Introduce sleepable BPF programs"), which selects TASKS_TRACE_RCU. --- kernel/rcu/tasks.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index d5d9f2d03e8a0ac9..8c290cc45e6fc63a 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -707,7 +707,7 @@ static void show_rcu_tasks_rude_gp_kthread(void) #endif /* #ifndef CONFIG_TINY_RCU */ #else /* #ifdef CONFIG_TASKS_RUDE_RCU */ -static void show_rcu_tasks_rude_gp_kthread(void) {} +static inline void show_rcu_tasks_rude_gp_kthread(void) {} #endif /* #else #ifdef CONFIG_TASKS_RUDE_RCU */ //////////////////////////////////////////////////////////////////////// -- 2.17.1