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SubjectRe: CONFIG_X86_ES7000=y, CONFIG_X86_GENERICARCH=n, CONFIG_ACPI=y build broken
>  > Can you please try the attached patch? I have compiled it with
> CONFIG_ES7000=y
> > and CONFIG_X86_GENERICARCH=n. But don't have any ES7000 machine to
> test it.
>
> I actually don't have anything remotely like ES7000 iether. I just
> found the problem while tracking down another randconfig failure.
>
> > Subarch build procedure is not straightforward and this patch adds to
> the
> > misery. Please suggest if there is a better way of handling things.
>
> > +/*
> > + * This file also gets compiled if CONFIG_X86_GENERICARCH is set.
> Generic
> > + * arch already has got following function definitions
> (asm-generic/es7000.c)
> > + * hence no need to define these for that case.
> > + */
> > +#ifndef CONFIG_X86_GENERICARCH
>
> Seems it would be cleaner to figure out some way to build es7000.c for
> if CONFIG_X86_ES7000 is set? Or just move them here all the time?
>
> > ---
> linux-2.6.22-rc4-git4/include/asm-i386/mach-es7000/mach_mpparse.h~i386-e
> s7000-build-breakage-fix 2007-06-13 22:52:14.000000000 +0530
> > +++
> linux-2.6.22-rc4-git4-vivek/include/asm-i386/mach-es7000/mach_mpparse.h
> 2007-06-13 22:52:14.000000000 +0530
> > @@ -18,6 +18,12 @@ extern int parse_unisys_oem (char *oempt
> > extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
> > extern void setup_unisys(void);
> >
> > +#ifndef CONFIG_X86_GENERICARCH
> > +extern int acpi_madt_oem_check(char *oem_id, char *oem_table_id);
> > +extern int mps_oem_check(struct mp_config_table *mpc, char *oem,
> > + char *productid);
> > +#endif
>
> It seems that this #ifndef is not needed -- even if there is another
> declaration of these functions that is visible, the signatures should
> match so it should be OK.

I just finished my test builds with and without GENERIC, so I can
suggest just move all functions to arch/i386/mach-es7000/es7000plat.c
- es7000_sw_apic() ,es7000_enable_apic_mode(),acpi_madt_oem_check(),
mps_oem_check() and make them non-static - from
arch/i386/mach-generic/es7000.c and I think I externed couple things
in asm/mach-es7000/mach_apic.h. So the file
arch/i386/mach-generic/es7000.c looks very simple:
/* * APIC driver for the Unisys ES7000 chipset.
*/
#define APIC_DEFINITION 1
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <asm/smp.h>
#include <asm/mpspec.h>
#include <asm/genapic.h>
#include <asm/fixmap.h>
#include <asm/apicdef.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/smp.h>
#include <linux/init.h>
#include <asm/mach-es7000/mach_apicdef.h>
#include <asm/mach-es7000/mach_apic.h>
#include <asm/mach-es7000/mach_ipi.h>
#include <asm/mach-es7000/mach_mpparse.h>
#include <asm/mach-es7000/mach_wakecpu.h>
static int probe_es7000(void)
{
/* probed later in mptable/ACPI hooks */
return 0;
}
struct genapic apic_es7000 = APIC_INIT("es7000", probe_es7000);


and no ifdefs. Sorry for this skimpy description without actual patch...
I can send a patch later on, or you guys can try it yourselves :)
sorry have such a tight time this afternoon, only can back to my
computer after 7-8 pm...
Regards,
--Natalie
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