[PATCH 148/173] powerpc: Fix default_machine_crash_shutdown #ifdef botch

[Willy Tarreau <w@1wt.eu>]

2.6.27.59-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>

powerpc: Fix default_machine_crash_shutdown #ifdef botch

Commit: c2be05481f6125254c45b78f334d4dd09c701c82 upstream

crash_kexec_wait_realmode() is defined only if CONFIG_PPC_STD_MMU_64
and CONFIG_SMP, but is called if CONFIG_PPC_STD_MMU_64 even if !CONFIG_SMP.
Fix the conditional compilation around the invocation.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
cc: Anton Blanchard <anton@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/powerpc/kernel/crash.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -447,7 +447,7 @@ void default_machine_crash_shutdown(stru
 	crash_kexec_prepare_cpus(crashing_cpu);
 	cpu_set(crashing_cpu, cpus_in_crash);
 	crash_kexec_stop_spus();
-#ifdef CONFIG_PPC_STD_MMU_64
+#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
 	crash_kexec_wait_realmode(crashing_cpu);
 #endif
 	if (ppc_md.kexec_cpu_down)