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Diffstat (limited to 'drivers/gpu/drm/i915/i915_utils.h')
-rw-r--r--drivers/gpu/drm/i915/i915_utils.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
index 26f3a4a50b40..03a73d2bd50d 100644
--- a/drivers/gpu/drm/i915/i915_utils.h
+++ b/drivers/gpu/drm/i915/i915_utils.h
@@ -260,6 +260,12 @@ static inline void __list_del_many(struct list_head *head,
WRITE_ONCE(head->next, first);
}
+static inline int list_is_last_rcu(const struct list_head *list,
+ const struct list_head *head)
+{
+ return READ_ONCE(list->next) == head;
+}
+
/*
* Wait until the work is finally complete, even if it tries to postpone
* by requeueing itself. Note, that if the worker never cancels itself,