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Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to the end of probe

From Keerthy <j-keerthy@ti.com>
Newsgroups linux.kernel
Subject Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to the end of probe
Date 2017-07-21 06:50 +0200
Message-ID <u5y2Z-aa-3@gated-at.bofh.it> (permalink)
References <u5hYf-6H9-9@gated-at.bofh.it> <u5mbw-1jG-27@gated-at.bofh.it> <u5s7h-4UV-13@gated-at.bofh.it> <u5sqB-54d-1@gated-at.bofh.it>
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On Friday 21 July 2017 04:14 AM, Grygorii Strashko wrote:
> 
> 
> On 07/20/2017 05:28 PM, David Miller wrote:
>> From: Grygorii Strashko <grygorii.strashko@ti.com>
>> Date: Thu, 20 Jul 2017 11:08:09 -0500
>>
>>> In general patch looks good to me, but it's really unexpected to
>>> receive IRQs while CPSW is probing ;(
>>
>> This is a poor expectation.
>>
>> Boot loaders and other entities can leave the device in any state
>> whatsoever.
>>
>> Furthermore, enabling an IRQ whose handler cannot properly execute
>> without crashing is wrong fundamentally.  All data structures and
>> state must be set up properly before the IRQ is requested.
>>
>> Therefore this patch is correct and I will apply it.
>>
> 
> Thanks. Agree (it just has never triggered before, so I meant - unexpected
>  from current driver code point of view ;().
> And I'm just worry that it might not be enough :(, especially for am335x.

I tried nfs boot on am335x-evm with this patch and it boots fine for me.

> 

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Thread

[PATCH] net: ethernet: ti: cpsw: Push the request_irq function to the end of probe Keerthy <j-keerthy@ti.com> - 2017-07-20 13:40 +0200
  Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to  the end of probe Grygorii Strashko <grygorii.strashko@ti.com> - 2017-07-20 18:10 +0200
    Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function  to the end of probe David Miller <davem@davemloft.net> - 2017-07-21 00:30 +0200
      Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to  the end of probe Grygorii Strashko <grygorii.strashko@ti.com> - 2017-07-21 00:50 +0200
        Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to  the end of probe Keerthy <j-keerthy@ti.com> - 2017-07-21 06:50 +0200
          Re: [PATCH] net: ethernet: ti: cpsw: Push the request_irq function to  the end of probe Grygorii Strashko <grygorii.strashko@ti.com> - 2017-07-21 18:00 +0200

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