From: Jakub Kicinski <kuba@xxxxxxxxxx> Currently, variables used only within lockdep expressions are flagged as unused, requiring that these variables' declarations be decorated with either #ifdef or __maybe_unused. This results in ugly code. This commit therefore causes the lockdep_tasklist_lock_is_held() function to be visible even when lockdep is not enabled, thus removing the need for these decorations. This approach further relies on dead-code elimination to remove any references to functions or variables that are not available in non-lockdep kernels. Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> --- include/linux/sched/task.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 85fb2f3..c0f71f2 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -47,9 +47,7 @@ extern spinlock_t mmlist_lock; extern union thread_union init_thread_union; extern struct task_struct init_task; -#ifdef CONFIG_PROVE_RCU extern int lockdep_tasklist_lock_is_held(void); -#endif /* #ifdef CONFIG_PROVE_RCU */ extern asmlinkage void schedule_tail(struct task_struct *prev); extern void init_idle(struct task_struct *idle, int cpu); -- 2.9.5
