linux-kernel - Re: [PATCH] allow setting wiphy.perm

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Message-ID: <1407801666.28221.84.camel@chimera>
Date:	Mon, 11 Aug 2014 17:01:06 -0700
From:	Daniel Gimpelevich <daniel@...pelevich.san-francisco.ca.us>
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	"John W. Linville" <linville@...driver.com>,
	"linux-wireless@...r.kernel.org Wireless" 
	<linux-wireless@...r.kernel.org>,
	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	Network Development <netdev@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] allow setting wiphy.perm_addr after driver probe

On Mon, 2014-08-11 at 16:56 -0700, Marcel Holtmann wrote:
> the way I read the nl80211 code is that the NL80211_CMD_NEW_INTERFACE
> requires a wiphy device to be specified. And that is actually just a
> number. So I have no idea what the MAC has to here.
> 
OpenWrt finds a wiphy by its MAC.

> Why does the wiphy need to know the MAC if it is always specified from
> userspace when actually creating the new netdev interface. Works for
> P2P devices, so why wouldn't it work for access point and station
> mode?
> 
A MAC can be specified for the netdev, but it is assigned to a wiphy
identified by its MAC.

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