linux-kernel - Re: [PATCH V2 15/19] irqchip: crossbar: Add kerneldoc for crossbar_domain

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Date:	Thu, 12 Jun 2014 19:20:25 +0530
From:	Sricharan R <r.sricharan@...com>
To:	Jason Cooper <jason@...edaemon.net>
CC:	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<tony@...mide.com>, <santosh.shilimkar@...com>, <nm@...com>,
	<rnayak@...com>, <linux@....linux.org.uk>, <tglx@...utronix.de>
Subject: Re: [PATCH V2 15/19] irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap
 callback

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@...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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