back()
The function padata_alloc() references
the function __cpuinit padata_cpu_callback().
This is often because padata_alloc lacks a __cpuinit
annotation or the annotation of padata_cpu_callback is wrong.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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