On Wednesday 20 May 2015 07:00:25 Suravee Suthikulanit wrote:
> It seems that there are several places that have similar check. Would it 
> be good to convert this into a macro? Something like:
> 
> #define OF_NODE_ENABLED(dev)    (IS_ENABLED(CONFIG_OF) && dev->of_node)
> 
> Thanks all for the review feedback.
> 

Better make that an inline function that returns the node:

struct device_node *dev_of_node(struct device *)
{
        if (IS_ENABLED(CONFIG_OF))
                return dev->of_node;

        return NULL;
}

        Arnd
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