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drm/vc4: Convert timers to use timer_setup()

PATCH In review Kees Cook 3 participants 5 messages Oct 24, 2017 – Nov 6, 2017

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Kees Cook

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#0 lore raw

PATCH 1/1 drm/vc4: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

---
 drivers/gpu/drm/vc4/vc4_bo.c  |  9 +++------
 drivers/gpu/drm/vc4/vc4_gem.c | 10 ++++------
 2 files changed, 7 insertions(+), 12 deletions(-)
drivers/gpu/drm/vc4/vc4_bo.c +3 -6
index 3afdbf4bc10b..ee07e072cd2a 100644
@@ -461,10 +461,9 @@ static void vc4_bo_cache_time_work(struct work_struct *work)
 	mutex_unlock(&vc4->bo_lock);
 }
 
-static void vc4_bo_cache_time_timer(unsigned long data)
+static void vc4_bo_cache_time_timer(struct timer_list *t)
 {
-	struct drm_device *dev = (struct drm_device *)data;
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_dev *vc4 = from_timer(vc4, t, bo_cache.time_timer);
 
 	schedule_work(&vc4->bo_cache.time_work);
 }
@@ -768,9 +767,7 @@ int vc4_bo_cache_init(struct drm_device *dev)
 	INIT_LIST_HEAD(&vc4->bo_cache.time_list);
 
 	INIT_WORK(&vc4->bo_cache.time_work, vc4_bo_cache_time_work);
-	setup_timer(&vc4->bo_cache.time_timer,
-		    vc4_bo_cache_time_timer,
-		    (unsigned long)dev);
+	timer_setup(&vc4->bo_cache.time_timer, vc4_bo_cache_time_timer, 0);
 
 	return 0;
 }
drivers/gpu/drm/vc4/vc4_gem.c +4 -6
index d0c6bfb68c4e..ce6bca06f937 100644
@@ -281,10 +281,10 @@ vc4_reset_work(struct work_struct *work)
 }
 
 static void
-vc4_hangcheck_elapsed(unsigned long data)
+vc4_hangcheck_elapsed(struct timer_list *t)
 {
-	struct drm_device *dev = (struct drm_device *)data;
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_dev *vc4 = from_timer(vc4, t, hangcheck.timer);
+	struct drm_device *dev = vc4->dev;
 	uint32_t ct0ca, ct1ca;
 	unsigned long irqflags;
 	struct vc4_exec_info *bin_exec, *render_exec;
@@ -1091,9 +1091,7 @@ vc4_gem_init(struct drm_device *dev)
 	spin_lock_init(&vc4->job_lock);
 
 	INIT_WORK(&vc4->hangcheck.reset_work, vc4_reset_work);
-	setup_timer(&vc4->hangcheck.timer,
-		    vc4_hangcheck_elapsed,
-		    (unsigned long)dev);
+	timer_setup(&vc4->hangcheck.timer, vc4_hangcheck_elapsed, 0);
 
 	INIT_WORK(&vc4->job_done_work, vc4_job_done_work);
 
Signature · 6 lines
2.7.4


-- 
Kees Cook
Pixel Security
#1 lore raw
Quoted 3 lines · Kees Cook

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

Reviewed and applied to drm-misc-next. Thanks!

author
#2 lore raw
Quoted 7 lines · Eric Anholt
Quoted 3 lines · Kees Cook

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

Reviewed and applied to drm-misc-next. Thanks!

Thanks!

I happened to notice that this was in next-20171102, but missing in next-20171103. Did it get removed, or am I misunderstanding something?

-Kees

Signature · 2 lines
Kees Cook
Pixel Security
#3 lore raw
Quoted 7 lines · Kees Cook
Quoted 6 lines · Eric Anholt
Quoted 3 lines · Kees Cook

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

Quoted 6 lines
Quoted 1 line

Reviewed and applied to drm-misc-next. Thanks!

Thanks!

I happened to notice that this was in next-20171102, but missing in next-20171103. Did it get removed, or am I misunderstanding something?

I don't know. It's in drm-misc-next, though, so it'll flow upstream without my intervention.

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#4 lore raw
Quoted 11 lines · Eric Anholt
Quoted 9 lines · Kees Cook
Quoted 7 lines · Eric Anholt
Quoted 3 lines · Kees Cook

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

Reviewed and applied to drm-misc-next. Thanks!

Quoted 7 lines
Quoted 4 lines

Thanks!

I happened to notice that this was in next-20171102, but missing in next-20171103. Did it get removed, or am I misunderstanding something?

I don't know. It's in drm-misc-next, though, so it'll flow upstream without my intervention.

I'll make 4.16. Again, our merge cutoff is -rc6, hence why they all missed. I guess one more to cherry-pick for you, or time to give up? -Daniel

Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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