powerpc: Define 'crash_kexec_wait_realmode' for Non-SMP systems.

This fixes a regression from b987812b3fcaf70fdf0037589e5d2f5f2453e6ce

"powerpc/kexec: Fix mismatched ifdefs for PPC64/SMP" which resulted in

arch/powerpc/kernel/crash.c: In function ‘default_machine_crash_shutdown’:
arch/powerpc/kernel/crash.c:349: error: implicit declaration of function ‘crash_kexec_wait_realmode’

message on when compiling on Blue&White G3 and CONFIG_SMP is not defined.

Signed-off-by Shaun Ruffell <[email protected]>

---
 arch/powerpc/kernel/crash.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

arch/powerpc/kernel/crash.c +3 -0

index 3d3d416..5e6e37f 100644
@@ -255,6 +255,9 @@ void crash_kexec_secondary(struct pt_regs *regs)
 {
 	cpus_in_sr = CPU_MASK_NONE;
 }
+
+static inline void crash_kexec_wait_realmode(int cpu) {}
+
 #endif
 
 /*

Quoted 1 line · Shaun Ruffell

This fixes a regression from b987812b3fcaf70fdf0037589e5d2f5f2453e6ce

A fix was already sent yesterday:

http://lists.ozlabs.org/pipermail/linuxppc-dev/2011-April/089559.html

which relocates the stub function to where it needs to be. Your fix below would end up making duplicate stub functions.