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[PATCH 1/2] dma-buf/fence-array: add fence_is_array()

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  [PATCH 1/2] dma-buf/fence-array: add fence_is_array() Gustavo Padovan <gustavo@padovan.org> - 2016-06-30 16:30 +0200
    Re: [PATCH 1/2] dma-buf/fence-array: add fence_is_array() Chris Wilson <chris@chris-wilson.co.uk> - 2016-06-30 16:30 +0200
      Re: [PATCH 1/2] dma-buf/fence-array: add fence_is_array() Chris Wilson <chris@chris-wilson.co.uk> - 2016-07-01 00:20 +0200

#1434619 — [PATCH 1/2] dma-buf/fence-array: add fence_is_array()

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

Add helper to check if fence is array.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/linux/fence-array.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/fence-array.h b/include/linux/fence-array.h
index 86baaa4..d2e9f40 100644
--- a/include/linux/fence-array.h
+++ b/include/linux/fence-array.h
@@ -52,6 +52,16 @@ struct fence_array {
 extern const struct fence_ops fence_array_ops;
 
 /**
+ * fence_is_array - check if a fence is from the array subsclass
+ *
+ * Return true if it is a fence_array and false otherwise.
+ */
+static inline bool fence_is_array(struct fence *fence)
+{
+	return (fence->ops == &fence_array_ops) ? true : false;
+}
+
+/**
  * to_fence_array - cast a fence to a fence_array
  * @fence: fence to cast to a fence_array
  *
-- 
2.5.5

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#1434620

On Thu, Jun 30, 2016 at 11:09:47AM -0300, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> Add helper to check if fence is array.
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Christian König <christian.koenig@amd.com>
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  include/linux/fence-array.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/include/linux/fence-array.h b/include/linux/fence-array.h
> index 86baaa4..d2e9f40 100644
> --- a/include/linux/fence-array.h
> +++ b/include/linux/fence-array.h
> @@ -52,6 +52,16 @@ struct fence_array {
>  extern const struct fence_ops fence_array_ops;
>  
>  /**
> + * fence_is_array - check if a fence is from the array subsclass
> + *
> + * Return true if it is a fence_array and false otherwise.
> + */
> +static inline bool fence_is_array(struct fence *fence)
> +{
> +	return (fence->ops == &fence_array_ops) ? true : false;

Just return fence->ops == &fence_array_ops; It's a logical operation, it
is already a boolean. With that,

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

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#1434888

On Thu, Jun 30, 2016 at 03:23:59PM +0100, Chris Wilson wrote:
> On Thu, Jun 30, 2016 at 11:09:47AM -0300, Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > 
> > Add helper to check if fence is array.
> > 
> > Cc: Chris Wilson <chris@chris-wilson.co.uk>
> > Cc: Christian König <christian.koenig@amd.com>
> > Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > ---
> >  include/linux/fence-array.h | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/include/linux/fence-array.h b/include/linux/fence-array.h
> > index 86baaa4..d2e9f40 100644
> > --- a/include/linux/fence-array.h
> > +++ b/include/linux/fence-array.h
> > @@ -52,6 +52,16 @@ struct fence_array {
> >  extern const struct fence_ops fence_array_ops;
> >  
> >  /**
> > + * fence_is_array - check if a fence is from the array subsclass
> > + *
> > + * Return true if it is a fence_array and false otherwise.
> > + */
> > +static inline bool fence_is_array(struct fence *fence)
> > +{
> > +	return (fence->ops == &fence_array_ops) ? true : false;
> 
> Just return fence->ops == &fence_array_ops; It's a logical operation, it
> is already a boolean. With that,
> 
> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

Oops, this needs an EXPORT_SYMBOL(fence_array_ops);
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

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