Re: [PATCH] irq: Changed the return type of irq_chip.irq_startup() from unsigned int to int

[Jean-Jacques Hiblot <jjhiblot@gmail.com>]

Le 01/03/2014 17:01, Russell King - ARM Linux a écrit :
> On Sat, Mar 01, 2014 at 04:31:13PM +0100, Thomas Gleixner wrote:
>> On Fri, 28 Feb 2014, James Hogan wrote:
>>> On Thursday 27 February 2014 18:21:19 Jean-Jacques Hiblot wrote:
>>>>   drivers/irqchip/irq-metag.c               | 4 ++--
>>>
>>> I think you've missed out drivers/irqchip/irq-metag-ext.c
>>
>> There is a good reason why I asked to do this with coccinelle.
>
> Go easy, not everyone understands that complex tool - I certainly don't.
> I ended up deleting it from my system after several failed attempts, and
> I came to the conclusion that to use it properly, you also needed a Julia
> installed along side you to learn how to write its scripts.
>
> The big problem is it /doesn't/ do what it advertises to - I ended up
> writing expression after expression to make it detect all the various
> forms of what I wanted it to, which as I understand the tool is precisely
> the opposite of what you're supposed to do with it.
>
> I ended up coming to the conclusion that a well formed sed and/or grep
> expression was far more useful and effective than trying to figure out
> coccinelle.
>
Actually I tried to use coccinelle for this, but to paraphrase Thomas: 
it was a failure on its own. The tool is complex.
I'll send shortly a second version of the patch with the missing change(s).

Jean-Jacques