Re: [dpdk-dev] [PATCH v4 1/9] bus: add bus iterator to find a particular bus

[Thomas Monjalon <thomas@monjalon.net>]

21/06/2017 01:29, Gaetan Rivet:
> +/**
> + * Bus iterator to find a particular bus.
> + *
> + * If the callback returns zero this function will stop iterating over
> + * any more buses.
> + * If the start parameter is non-NULL, the comparison will only be determined
> + * past this element.
> + *
> + * @param cmp
> + *     Comparison function.
> + *
> + * @param data
> + *      Data to pass to cmp callback
> + *
> + * @param start
> + *     Starting point for the iteration.
> + *
> + * @return
> + *      A pointer to a rte_bus structure or NULL in case no bus matches
> + */
> +struct rte_bus *rte_bus_find(rte_bus_cmp_t cmp,
> +                            const void *data,
> +                            const struct rte_bus *start);
> 

What will be the typical usage? find by name?
Does it make sense to implement a helper for find_by_name?

Or is it used only for rte_bus_find_by_device()?