• Guenter Roeck's avatar
    powerpc/pseries: Fix build break for SPLPAR=n and CPU hotplug · 82343484
    Guenter Roeck authored
    Commit e67e02a5 ("powerpc/pseries: Fix cpu hotplug crash with
    memoryless nodes") adds an unconditional call to
    find_and_online_cpu_nid(), which is only declared if CONFIG_PPC_SPLPAR
    is enabled. This results in the following build error if this is not
    the case.
    
      arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_online_cpu':
      arch/powerpc/platforms/pseries/hotplug-cpu.c:369:
      			undefined reference to `.find_and_online_cpu_nid'
    
    Follow the guideline provided by similar functions and provide a dummy
    function if CONFIG_PPC_SPLPAR is not enabled. This also moves the
    external function declaration into an include file where it should be.
    
    Fixes: e67e02a5 ("powerpc/pseries: Fix cpu hotplug crash with memoryless nodes")
    Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
    [mpe: Change subject to emphasise the build fix]
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    82343484
topology.h 3.09 KB