Re: [2.6 patch] disallow DRM on 386

[Andrew Morton]

Adrian Bunk <bunk@xxxxxxxxx> wrote:
>
> On Tue, Jan 20, 2004 at 11:44:03PM +0100, Diego Calleja wrote:
> > El Tue, 20 Jan 2004 22:24:21 +0100 Adrian Bunk <bunk@xxxxxxxxx> escribió:
> > 
> > > I got the following compile error in 2.6.1-mm5 with X86_CMPXCHG=n.
> > > This problem is not specific to -mm, and it always occurs when you 
> > > include support for the 386 cpu (oposed to the 486 or later cpus) since 
> > > in this case X86_CMPXCHG=n and therefoore cmpxchg isn't defined in 
> > > include/asm-i386/system.h .
> > > 
> > > The patch below disallows DRM if X86_CMPXCHG=n.
> > 
> > I got a "cmpxchg not defined" error when compiling the drm stuff in -mm5.
> > When I looked at the configuration, I saw that all the cpus types had been selected
> > (I didn't even realize of your stuuf and menuconfig put the defaults). I removed
> > all types of cpus except PIII and it compiled.
> 
> Yup, that's exactly the problem.
> 
> Selecting CPU_386 in -mm4 or -mm5 or selecting M386 in other kernels 
> triggers it.
> 

I'll remove 386 from the default CPU types as well.

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