Linus
2.6.19-rc1 gives below error while compiling with CONFIG_PPC32.
 ===================================================================

 LD      fs/built-in.o
 GEN     .version
 CHK     include/linux/compile.h
 UPD     include/linux/compile.h
 CC      init/version.o
 LD      init/built-in.o
 LD      .tmp_vmlinux1
arch/powerpc/platforms/built-in.o: In function `flush_disable_caches':
(.text+0x96d4): undefined reference to `low_cpu_die'
======================================================
low_cpu_die() is defined under  CONFIG_PM || CONFIG_CPU_FREQ_PMAC  
options ,but while calling this function ,no care has been to taken to 
check these options. So please apply this fix,which solves the problem.

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>