From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH v8 4/9] eal/bus: support for scanning of bus
Date: Wed, 18 Jan 2017 00:37:14 +0100
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To: Shreyansh Jain <shreyansh.jain@nxp.com>
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2017-01-17 19:07, Shreyansh Jain:
> + * Generic bus object passed only as a helper for implementation to find
> + * their respective registered bus object. Implementations can choose not
> + * to use this variable.

I think this comment is obsolete.

> + *
> + * @return
> + *     0 for successful scan
> + *     !0 (<0) for unsuccessful scan with error value

What do you mean with !0 (<0) ?
I guess <0 is enough.

> + */
> +typedef int (*rte_bus_scan_t)(void);
>