[CI] drm/i915: properly init lockdep class

* [CI] drm/i915: properly init lockdep class
@ 2017-12-14 13:10 Joonas Lahtinen
  2017-12-14 13:29 ` ✗ Fi.CI.BAT: failure for drm/i915: properly init lockdep class (rev2) Patchwork
                   ` (3 more replies)
  0 siblings, 4 replies; 7+ messages in thread
From: Joonas Lahtinen @ 2017-12-14 13:10 UTC (permalink / raw)
  To: Intel graphics driver community testing & development
  Cc: Sebastian Andrzej Siewior

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

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@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem_timeline.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_timeline.c b/drivers/gpu/drm/i915/i915_gem_timeline.c
index c01905d6450c..e9fd87604067 100644
--- 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 intel_timeline *tl,
 {
 	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);
-- 
2.14.3

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