[Intel-gfx] [PATCH v2 1/2] drm/i915: Wrap our timer_list.expires checking

[Chris Wilson]

Refactor our timer_list.expires checking into its own timer_active()
helper.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_utils.c | 2 +-
 drivers/gpu/drm/i915/i915_utils.h | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_utils.c b/drivers/gpu/drm/i915/i915_utils.c
index 4c305d838016..f9e780dee9de 100644
--- a/drivers/gpu/drm/i915/i915_utils.c
+++ b/drivers/gpu/drm/i915/i915_utils.c
@@ -87,7 +87,7 @@ bool i915_error_injected(void)
 
 void cancel_timer(struct timer_list *t)
 {
-	if (!READ_ONCE(t->expires))
+	if (!timer_active(t))
 		return;
 
 	del_timer(t);
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
index 54773371e6bd..abd4dcd9f79c 100644
--- a/drivers/gpu/drm/i915/i915_utils.h
+++ b/drivers/gpu/drm/i915/i915_utils.h
@@ -438,9 +438,14 @@ static inline void __add_taint_for_CI(unsigned int taint)
 void cancel_timer(struct timer_list *t);
 void set_timer_ms(struct timer_list *t, unsigned long timeout);
 
+static inline bool timer_active(const struct timer_list *t)
+{
+	return READ_ONCE(t->expires);
+}
+
 static inline bool timer_expired(const struct timer_list *t)
 {
-	return READ_ONCE(t->expires) && !timer_pending(t);
+	return timer_active(t) && !timer_pending(t);
 }
 
 /*
-- 
2.20.1