netdev - Re: [PATCH] Change S390 anti-dependency to CONFIG_GENERIC

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Message-ID: <48F52E89.9050104@redhat.com>
Date:	Tue, 14 Oct 2008 19:43:05 -0400
From:	Chris Snook <csnook@...hat.com>
To:	David Miller <davem@...emloft.net>
CC:	afleming@...il.com, afleming@...escale.com, netdev@...r.kernel.org
Subject: Re: [PATCH] Change S390 anti-dependency to CONFIG_GENERIC_HARDIRQS
 dependency

David Miller wrote:
> From: "Andy Fleming" <afleming@...il.com>
> Date: Tue, 14 Oct 2008 18:21:44 -0500
> 
>> Argh.  From what I could see, we have request_irq, free_irq,
>> disable_irq, enable_irq, and disable_irq_nosync.  For the PHYLIB, it
>> shouldn't be difficult to modify things so that it doesn't compile in
>> interrupt support if the system doesn't support them.  Shouldn't, that
>> is, if there's some config option that tells me whether those
>> functions exist.
> 
> I think this whole situation with s390 is rediculious.
> 
> If s390 is weird and lacks these fundamental things, that's fine.
> What isn't fine is how we're handling this.
> 
> No code should care or even be aware of this.
> 
> S390 should simply provide a set of dummy DMA and interrupt interface
> stubs that always fail and return an error value.
> 
> Then we can get rid of this S390 Kconfig stuff which has been spewed
> all over the place.

"depends on PCI" has always worked for me.  Any reason we can't use that 
here?

-- Chris
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