Re: [PATCH V2 3/3] cfg80211: support ieee80211-freq-limit DT property

[Johannes Berg <johannes@sipsolutions.net>]

On Mon, 2017-01-02 at 16:05 +0100, Rafał Miłecki wrote:
> On 2 January 2017 at 15:04, Johannes Berg <johannes@sipsolutions.net>
> wrote:
> > Perhaps a better approach would be to not combine this with wiphy
> > registration, but require drivers that may use this to call a new
> > helper function *before* wiphy registration (and *after* calling
> > set_wiphy_dev()), like e.g.
> > 
> >    ieee80211_read_of_data(wiphy);
> > 
> > (...)

> I just think it may be better to stick to something like
> ieee80211_read_of_freq_limits
> or
> wiphy_read_of_freq_limits

I have no objection to that.

> As you noted this function will be a bit specific because of
> modifying (possibly shared) band channels. At some point we may want
> to add more helpers for other OF properties which won't have extra
> requirements for driver code. Some drivers may want to use them while
> not necessary risking have shared band channels modified.

That makes sense, although at that time we might still wish to have a
common "read it all" with the combined requirements. But we can cross
that bridge when we get to it.

johannes