On Fri, Apr 22, 2005 at 12:30:09AM +0900, Keiichiro Tokunaga wrote:
> +#ifdef CONFIG_HOTPLUG
> +void unregister_node(struct node *node)
> +{
> + sysdev_remove_file(&node->sysdev, &attr_cpumap);
> + sysdev_remove_file(&node->sysdev, &attr_meminfo);
> + sysdev_remove_file(&node->sysdev, &attr_numastat);
> + sysdev_remove_file(&node->sysdev, &attr_distance);
> +
> + sysdev_unregister(&node->sysdev);
> +}
> +EXPORT_SYMBOL_GPL(register_node);
> +EXPORT_SYMBOL_GPL(unregister_node);
> +#else /* !CONFIG_HOTPLUG */
> +void unregister_node(struct node *node)
> +{
> +}
> +#endif /* !CONFIG_HOTPLUG */
Oops, you only exported the symbols if CONFIG_HOTPLUG is enabled, not a
good idea. Either make the null functions in a .h file if the option is
not enabled, or always export them.
And the comment for the #endif isn't really needed, as the whole #ifdef
fits on a single screen :)
And hey, what's the real big deal here, why not always have this
function no matter if CONFIG_HOTPLUG is enabled or not? I really want
to just make that an option that is always enabled anyway, but changable
if you are using CONFIG_TINY or something...
thanks,
greg k-h
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