[PATCH] Fix X86_GENERICARCH & NUMA compile error

From: Matthew Dobson <colpatch@us.ibm.com>

Trying to build a kernel with both CONFIG_X86_GENERICARCH and
CONFIG_NUMA on results in a compile error.  This patch fixes that build 
problem by adding a config option for NUMA on Summit which is used to
correctly conditionally compile arch/i386/kernel/summit.c and properly
ifdef the function calls used in generic code.  Please apply.

Running make -j24 bzImage
arch/i386/mach-generic/built-in.o: In function `mps_oem_check':
arch/i386/mach-generic/built-in.o(.text+0x3ce): undefined reference to
`setup_summit'
arch/i386/mach-generic/built-in.o: In function `acpi_madt_oem_check':
arch/i386/mach-generic/built-in.o(.text+0x468): undefined reference to
`setup_summit'
make: *** [.tmp_vmlinux1] Error 1

arch/i386/Kconfig

@@ -115,10 +115,15 @@ config ACPI_SRAT
 	default y
 	depends on NUMA && (X86_SUMMIT || X86_GENERICARCH)
 
+config X86_SUMMIT_NUMA
+	bool
+	default y
+	depends on NUMA && (X86_SUMMIT || X86_GENERICARCH)
+
 config X86_CYCLONE_TIMER
-       bool 
-       default y
-       depends on X86_SUMMIT || X86_GENERICARCH
+	bool
+	default y
+	depends on X86_SUMMIT || X86_GENERICARCH
 
 config ES7000_CLUSTERED_APIC
 	bool

arch/i386/kernel/Makefile

@@ -24,7 +24,7 @@ obj-$(CONFIG_X86_MPPARSE)	+= mpparse.o
 obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o nmi.o
 obj-$(CONFIG_X86_IO_APIC)	+= io_apic.o
 obj-$(CONFIG_X86_NUMAQ)		+= numaq.o
-obj-$(CONFIG_X86_SUMMIT)	+= summit.o
+obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit.o
 obj-$(CONFIG_EDD)             	+= edd.o
 obj-$(CONFIG_MODULES)		+= module.o
 obj-y				+= sysenter.o vsyscall.o

arch/i386/kernel/summit.c

@@ -29,9 +29,8 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <asm/io.h>
-#include <mach_mpparse.h>
+#include <asm/mach-summit/mach_mpparse.h>
 
-#ifdef CONFIG_NUMA
 static void __init setup_pci_node_map_for_wpeg(int wpeg_num, struct rio_table_hdr *rth, 
 		struct scal_detail **scal_nodes, struct rio_detail **rio_nodes){
 	int twst_num = 0, node = 0, first_bus = 0;
@@ -169,4 +168,3 @@ void __init setup_summit(void)
 			/* It's a Winnipeg, it's got PCI Busses */
 			setup_pci_node_map_for_wpeg(i, rio_table_hdr, scal_devs, rio_devs);
 }
-#endif /* CONFIG_NUMA */

include/asm-i386/mach-summit/mach_mpparse.h

@@ -5,11 +5,11 @@
 
 extern int use_cyclone;
 
-#ifdef CONFIG_NUMA
+#ifdef CONFIG_X86_SUMMIT_NUMA
 extern void setup_summit(void);
-#else /* !CONFIG_NUMA */
+#else
 #define setup_summit()	{}
-#endif /* CONFIG_NUMA */
+#endif
 
 static inline void mpc_oem_bus_info(struct mpc_config_bus *m, char *name, 
 				struct mpc_config_translation *translation)

include/asm-i386/mpspec.h

@@ -27,10 +27,6 @@ extern unsigned long mp_lapic_addr;
 extern int pic_mode;
 extern int using_apic_timer;
 
-#ifdef CONFIG_X86_SUMMIT
-extern void setup_summit (void);
-#endif
-
 #ifdef CONFIG_ACPI_BOOT
 extern void mp_register_lapic (u8 id, u8 enabled);
 extern void mp_register_lapic_address (u64 address);