From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org>
Subject: Re: irq_to_desc undefined when compiling igb_uio
Date: Tue, 26 Aug 2014 15:32:08 -0700
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Cc: "dev-VfR2kkLFssw@public.gmane.org" <dev-VfR2kkLFssw@public.gmane.org>, Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>
To: "Habibi, Michael" <michael.f.habibi-VXdhtT5mjnY@public.gmane.org>
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On Tue, 26 Aug 2014 21:43:15 +0000
"Habibi, Michael" <michael.f.habibi-VXdhtT5mjnY@public.gmane.org> wrote:

> I agree the kernel is old but it's what we're stuck with at the moment. It
> appears that at least some thought went into this, as the code in question
> is actually compatibility code added for older kernel versions such as mine:
> 
> #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37)
> /* Compatability wrapper for new kernel API for IRQ */
> #define irq_data irq_desc
> #define irq_get_irq_data(irq) irq_to_desc(irq)
> #define irq_data_get_msi(data) get_irq_desc_msi(data)
> #endif
> 
> I may just export the symbol for now. Unfortunately I'm not familiar enough
> with this area of the code, but if I end up tackling this I'll see if I can
> submit a patch if it hasn't been fixed by then.
> 
> Thanks.
> 
> P.S. Aaro sorry for the duplicate email. I resent this without my digital signature so it would get through the mailing list.

I did build test against stock 2.6.32 from upstream.
Not going to deal with all the vendor kernel issues.