Re: [PATCH v1 1/2] ata: libahci_platform: Get rid of dup message when IRQ can't be retrieved

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On 12/9/21 10:22 PM, Andy Shevchenko wrote:

[...]
>>>>> No need to repeat this.
>>>>>
>>>>> While at it, drop redundant check for 0 as platform_get_irq() spills
>>>>> out a big WARN() in such case.
>>>>
>>>>    And? IRQ0 is still returned! :-(
>>>
>>> It should not be returned in the first place.
>>
>>    But it still is, despite the WARN(), right?
> 
> So, you admit that there is a code which does that?

   I admit *what*?! That platfrom_get_irq() and its ilk return IRQ0 while they
shouldn't? =)

> That code should be fixed first. Have you sent a patch?

   Which code?! You got me totally muddled. =)

> ...
> 
>>>>> -	if (!irq)
>>>>> -		return -EINVAL;
>>>>
>>>>    This is prermature -- let's wait till my patch that stops returning IRQ0 from
>>>> platform_get_irq() and friends gets merged....
>>>
>>> What patch?
>>
>>    https://marc.info/?l=linux-kernel&m=163623041902285
>>
>>> Does it fix platform_get_irq_optional()?
>>
>>    Of course! :-)
> 
> Can you share link to lore.kernel.org, please?
> It will make much easier to try and comment.

   I don't know how to uise it yet, and I'm a little busy with other IRQ0 issues ATM,
so I'm afraid you're on your own here...

MBR, Sergey



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