diff mbox

[V2,15/19] irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback

Message ID 1402574007-13987-16-git-send-email-r.sricharan@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

R Sricharan June 12, 2014, 11:53 a.m. UTC
The crossbar_domain_map/unmap callbacks need not be called same number
of times for a particular irq. But still use counting is not needed
here, because unmap(irq) gets called when irq_desc(irq) is disposed.
After this the irq is anyways unusable and have to mapped again.

Adding the above kerneldoc for unmap callback clarity.

Signed-off-by: Sricharan R <r.sricharan@ti.com>
---
 drivers/irqchip/irq-crossbar.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Jason Cooper June 12, 2014, 1:49 p.m. UTC | #1
On Thu, Jun 12, 2014 at 05:23:23PM +0530, Sricharan R wrote:
> The crossbar_domain_map/unmap callbacks need not be called same number
> of times for a particular irq. But still use counting is not needed
> here, because unmap(irq) gets called when irq_desc(irq) is disposed.
> After this the irq is anyways unusable and have to mapped again.

There's no need to duplicate the code comment in the commit log ;-)

> 
> Adding the above kerneldoc for unmap callback clarity.
> 
> Signed-off-by: Sricharan R <r.sricharan@ti.com>
> ---
>  drivers/irqchip/irq-crossbar.c |   10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
> index 5f3e75a..2a73a66 100644
> --- a/drivers/irqchip/irq-crossbar.c
> +++ b/drivers/irqchip/irq-crossbar.c
> @@ -101,6 +101,16 @@ static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
>  	return 0;
>  }
>  
> +/**
> + * crossbar_domain_unmap - unmap a crossbar<->irq connection
> + * @d: domain of irq to unmap
> + * @irq: virq number
> + *
> + * The map/unmap callbacks need not be called same number of times for

s/same/the same/

> + * a particular irq. But still use counting is not needed here, because
> + * unmap(irq) gets called when irq_desc(irq) is disposed. After this the
> + * irq is anyways unusuable and have to be mapped again.

Please re-word this.  If I were new to the driver (I am ;-) ) I would
have no idea what this means (and I don't :( )

thx,

Jason.

> + */
>  static void crossbar_domain_unmap(struct irq_domain *d, unsigned int irq)
>  {
>  	irq_hw_number_t hw = irq_get_irq_data(irq)->hwirq;
> -- 
> 1.7.9.5
> 
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R Sricharan June 12, 2014, 1:50 p.m. UTC | #2
Hi Jason,

On Thursday 12 June 2014 07:19 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:23PM +0530, Sricharan R wrote:
>> The crossbar_domain_map/unmap callbacks need not be called same number
>> of times for a particular irq. But still use counting is not needed
>> here, because unmap(irq) gets called when irq_desc(irq) is disposed.
>> After this the irq is anyways unusable and have to mapped again.
> 
> There's no need to duplicate the code comment in the commit log ;-)
Ok, will change this.
> 
>>
>> Adding the above kerneldoc for unmap callback clarity.
>>
>> Signed-off-by: Sricharan R <r.sricharan@ti.com>
>> ---
>>  drivers/irqchip/irq-crossbar.c |   10 ++++++++++
>>  1 file changed, 10 insertions(+)
>>
>> diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
>> index 5f3e75a..2a73a66 100644
>> --- a/drivers/irqchip/irq-crossbar.c
>> +++ b/drivers/irqchip/irq-crossbar.c
>> @@ -101,6 +101,16 @@ static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
>>  	return 0;
>>  }
>>  
>> +/**
>> + * crossbar_domain_unmap - unmap a crossbar<->irq connection
>> + * @d: domain of irq to unmap
>> + * @irq: virq number
>> + *
>> + * The map/unmap callbacks need not be called same number of times for
> 
> s/same/the same/
ok.
> 
>> + * a particular irq. But still use counting is not needed here, because
>> + * unmap(irq) gets called when irq_desc(irq) is disposed. After this the
>> + * irq is anyways unusuable and have to be mapped again.
> 
> Please re-word this.  If I were new to the driver (I am ;-) ) I would
> have no idea what this means (and I don't :( )
> 
hmm, will reword it better then..

Regards,
 Sricharan
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diff mbox

Patch

diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 5f3e75a..2a73a66 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -101,6 +101,16 @@  static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
 	return 0;
 }
 
+/**
+ * crossbar_domain_unmap - unmap a crossbar<->irq connection
+ * @d: domain of irq to unmap
+ * @irq: virq number
+ *
+ * The map/unmap callbacks need not be called same number of times for
+ * a particular irq. But still use counting is not needed here, because
+ * unmap(irq) gets called when irq_desc(irq) is disposed. After this the
+ * irq is anyways unusuable and have to be mapped again.
+ */
 static void crossbar_domain_unmap(struct irq_domain *d, unsigned int irq)
 {
 	irq_hw_number_t hw = irq_get_irq_data(irq)->hwirq;