[alsa-devel] snd-hda-intel support for SPDIF-in wiht vt1708 card?

[John Stile]

On Thu, 2007-12-20 at 12:09 +0100, Takashi Iwai wrote:
> At Thu, 20 Dec 2007 00:37:46 +0000,
> forumjunk at comcast.net wrote:
> > 
> > 
> > For VIA platforms, to avoid the driver compile error in pci.h, reconfigure your kernel to remove SMP support, and set the architecture type to PC-compatible.
> > 
> > (you already know this, I'm sure):
> > Recompile the kernel (as a paranoid, I always trash /lib/modules/<kernel_version> before making modules_install). Install the kernel, of course, and reconfigure your boot loader and/or initrd and reboot.
> > 
> > There are still several fixes that need to be made to get all of this to compile cleanly, but I haven't got the permanent fixes nailed down yet. I'm almost positive that these are alsa-driver configure errors or omissions. I can't (yet) find a kernel config that will avoid them. The fixes below are harmless, and they will allow you to get the driver compiled.
> 
> My guess is that the error of configure script is the only point we
> need to fix.
> 
> > Add this definition to the top section of acore/memory_wrapper.c after the line that reads #include <linux/version.h>
> > 
> > #define VMALLOC_VMADDR(x)   ((unsigned long)(x))
> > 
> > Change these lines (45 and 46 or close to that) of acore/memory_wrapper.c from:
> > 
> >         pmd = pmd_offset(pgd, lpage);
> >         pte = pte_offset(pmd, lpage);
> > 
> > to
> > 
> >         pmd = pmd_offset((pud_t *)pgd, lpage);
> >         pte = pte_offset_kernel(pmd, lpage);
> > 
> > The driver will then compile cleanly (at least with no errors or warnings relating to any of these changes)
> 
> Don't do this.  This part shouldn't be compiled at all for recent
> kernels.  This is, again, the problem of configure script that
> detected the codes wrongly.
> 
> 
> So, could you guys show config.log?  Otherwise it's hard to know
> what's really wrong.
> 
I recompiled the kernel without SMP support, and as PC-compatible (per
forumjunk at comcast.net).  In config.log, vmalloc_to_page shows a warning
starting at line 540.  "function cpuid_count causes a warning: pointer
targets in passing argument 4 of 'native_cpuid' differ in signedness". 
Since config.long is so long... I posted it here:
http://pastebin.ca/825772