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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 26 Sep 2019 12:30:21 +0200
Subject: [PATCH] drm/i915: Drop the IRQ-off asserts
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz
The lockdep_assert_irqs_disabled() check is needless. The previous
lockdep_assert_held() check ensures that the lock is acquired and while
the lock is acquired lockdep also prints a warning if the interrupts are
not disabled if they have to be.
These IRQ-off asserts trigger on PREEMPT_RT because the locks become
sleeping locks and do not really disable interrupts.
Remove lockdep_assert_irqs_disabled().
Reported-by: Clark Williams <williams@redhat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
drivers/gpu/drm/i915/gt/intel_breadcrumbs.c | 3 ---
1 file changed, 3 deletions(-)
--- a/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
@@ -120,7 +120,6 @@ static void
struct dma_fence_cb *cur, *tmp;
lockdep_assert_held(fence->lock);
- lockdep_assert_irqs_disabled();
list_for_each_entry_safe(cur, tmp, list, node) {
INIT_LIST_HEAD(&cur->node);
@@ -269,7 +268,6 @@ void intel_engine_fini_breadcrumbs(struc
bool i915_request_enable_breadcrumb(struct i915_request *rq)
{
lockdep_assert_held(&rq->lock);
- lockdep_assert_irqs_disabled();
if (test_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags)) {
struct intel_breadcrumbs *b = &rq->engine->breadcrumbs;
@@ -319,7 +317,6 @@ void i915_request_cancel_breadcrumb(stru
struct intel_breadcrumbs *b = &rq->engine->breadcrumbs;
lockdep_assert_held(&rq->lock);
- lockdep_assert_irqs_disabled();
/*
* We must wait for b->irq_lock so that we know the interrupt handler
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