notifier: Remove atomic_notifier_call_chain_robust()

This now has no more users, remove it. Suggested-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Valentin Schneider <[email protected]> Acked-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
torvalds · Aug 16, 2021 · 15538a2 · 15538a2
1 parent b2f6662
commit 15538a2
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diff --git a/include/linux/notifier.h b/include/linux/notifier.h
@@ -168,8 +168,6 @@ extern int raw_notifier_call_chain(struct raw_notifier_head *nh,
 extern int srcu_notifier_call_chain(struct srcu_notifier_head *nh,
  unsigned long val, void *v);
 
-extern int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh,
- unsigned long val_up, unsigned long val_down, void *v);
 extern int blocking_notifier_call_chain_robust(struct blocking_notifier_head *nh,
  unsigned long val_up, unsigned long val_down, void *v);
 extern int raw_notifier_call_chain_robust(struct raw_notifier_head *nh,

diff --git a/kernel/notifier.c b/kernel/notifier.c
@@ -172,25 +172,6 @@ int atomic_notifier_chain_unregister(struct atomic_notifier_head *nh,
 }
 EXPORT_SYMBOL_GPL(atomic_notifier_chain_unregister);
 
-int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh,
- unsigned long val_up, unsigned long val_down, void *v)
-{
- unsigned long flags;
- int ret;
-
- /*
- * Musn't use RCU; because then the notifier list can
- * change between the up and down traversal.
- */
- spin_lock_irqsave(&nh->lock, flags);
- ret = notifier_call_chain_robust(&nh->head, val_up, val_down, v);
- spin_unlock_irqrestore(&nh->lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(atomic_notifier_call_chain_robust);
-NOKPROBE_SYMBOL(atomic_notifier_call_chain_robust);
-
 /**
  * atomic_notifier_call_chain - Call functions in an atomic notifier chain
  * @nh: Pointer to head of the atomic notifier chain