[Intel-gfx] [PATCH] drm/i915: properly init lockdep class

[Sebastian Andrzej Siewior]

The code has an ifdef and uses two functions to either init the bare
spinlock or init it and set a lock-class. It is possible to do the same
thing without an ifdef.
With this patch (in debug case) we first use the "default" lock class
which is later overwritten to the supplied one. Without lockdep the set
name/class function vanishes.

Reported-by: kbuild test robot <fengguang.wu at intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
---
 drivers/gpu/drm/i915/i915_gem_timeline.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/gpu/drm/i915/i915_gem_timeline.c
+++ b/drivers/gpu/drm/i915/i915_gem_timeline.c
@@ -33,11 +33,8 @@ static void __intel_timeline_init(struct
 {
 	tl->fence_context = context;
 	tl->common = parent;
-#ifdef CONFIG_DEBUG_SPINLOCK
-	__raw_spin_lock_init(&tl->lock.rlock, lockname, lockclass);
-#else
 	spin_lock_init(&tl->lock);
-#endif
+	lockdep_set_class_and_name(&tl->lock, lockclass, lockname);
 	init_request_active(&tl->last_request, NULL);
 	INIT_LIST_HEAD(&tl->requests);
 	i915_syncmap_init(&tl->sync);