[PATCH] x86: increase MAX_MP_BUSSES on default arch

Vitezslav Samel <[e-mail]> reports that an HP DL380 g4 fails using the
default arch due to the ISA bus having an ID of 32.

It would have worked OK with the generic arch - for some reason the default
arch doesn't support as many busses.

So bump that up to support 256 busses, but leave it at 32 if we're building a
tiny system to save a bit of memory.

Cc: Vitezslav Samel <[e-mail]>
Acked-by: Andi Kleen <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

include/asm-i386/mach-default/mach_mpspec.h

···
 
 #define MAX_IRQ_SOURCES 256
 
+#if CONFIG_BASE_SMALL == 0
+#define MAX_MP_BUSSES 256
+#else
 #define MAX_MP_BUSSES 32
+#endif
 
 #endif /* __ASM_MACH_MPSPEC_H */