• Michael Ellerman's avatar
    powerpc: Make cpu_to_chip_id() available when SMP=n · 3eb906c6
    Michael Ellerman authored
    Up until now we have only used cpu_to_chip_id() in the topology code,
    which is only used on SMP builds. However my recent commit a4da0d50
    "Implement arch_get_random_long/int() for powernv" added a usage when
    SMP=n, breaking the build.
    
    Move cpu_to_chip_id() into prom.c so it is available for SMP=n builds.
    
    We would move the extern to prom.h, but that breaks the include in
    topology.h. Instead we leave it in smp.h, but move it out of the
    CONFIG_SMP #ifdef. We also need to include asm/smp.h in rng.c, because
    the linux version skips asm/smp.h on UP. What a mess.
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    3eb906c6
smp.h 5.56 KB