[PATCH] powerpc: Fix kexec-related UP build error

[Paul E. McKenney]

Hello!

The following patch fixes a UP build problem for kexec() on powerpc.
When the crash_kexec_wait_realmode() function was added, it was
placed in only two of the three required locations.

Thoughts?

							Thanx, Paul

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

The function crash_kexec_wait_realmode() is defined only if SMP, but is
called in UP builds.  Create an empty function to keep the compiler happy
in UP builds.

Signed-off-by: Paul E. McKenney <paul.mckenney@xxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 3d3d416..6f964ef 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -251,6 +251,10 @@ static void crash_kexec_prepare_cpus(int cpu)
 #endif
 }
 
+static void crash_kexec_wait_realmode(int cpu)
+{
+}
+
 void crash_kexec_secondary(struct pt_regs *regs)
 {
 	cpus_in_sr = CPU_MASK_NONE;
--
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