linux-kernel - [PATCH net-next 1/7] sched: un-hide lockdep_tasklist_lock_is

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Date:   Wed, 16 Sep 2020 11:45:22 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net, paulmck@...nel.org, joel@...lfernandes.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        rcu@...r.kernel.org, josh@...htriplett.org, peterz@...radead.org,
        christian.brauner@...ntu.com, Jakub Kicinski <kuba@...nel.org>,
        ebiederm@...ssion.com, akpm@...ux-foundation.org, mingo@...nel.org
Subject: [PATCH net-next 1/7] sched: un-hide lockdep_tasklist_lock_is_held() for !LOCKDEP

We're trying to make LOCKDEP-related function declarations
visible to the compiler and depend on dead code elimination
to remove them.

Make lockdep_tasklist_lock_is_held() visible.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: christian.brauner@...ntu.com
CC: peterz@...radead.org
CC: ebiederm@...ssion.com
CC: akpm@...ux-foundation.org
CC: mingo@...nel.org
---
 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 a98965007eef..9f943c391df9 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);
-- 
2.26.2