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drm/i915: No need to save/restore irq status in intel_engine_wakeup 

It is called from either the process or timer context so it is
correct to always disable interrupts.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170306150321.29024-1-tvrtko.ursulin@linux.intel.com
This commit is contained in:
Tvrtko Ursulin 2017-03-06 15:03:21 +00:00
parent a9e64931ee
commit cdc3a45390
1 changed files with 2 additions and 3 deletions
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5
drivers/gpu/drm/i915/intel_breadcrumbs.c
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@ -46,12 +46,11 @@ static unsigned int __intel_breadcrumbs_wakeup(struct intel_breadcrumbs *b)
unsigned int intel_engine_wakeup(struct intel_engine_cs *engine)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
unsigned long flags;
unsigned int result;
spin_lock_irqsave(&b->irq_lock, flags);
spin_lock_irq(&b->irq_lock);
result = __intel_breadcrumbs_wakeup(b);
spin_unlock_irqrestore(&b->irq_lock, flags);
spin_unlock_irq(&b->irq_lock);
return result;
}