Re: Replacement for local->hw.conf.channel

[Ben Greear <greearb@candelatech.com>]

On 07/04/2013 12:27 AM, Johannes Berg wrote:
> On Wed, 2013-07-03 at 17:01 -0700, Ben Greear wrote:
>> I'm trying to port some patches forward to 3.10....
>>
>> I am trying to find the current channel for a radio.  Since
>> hw.conf.channel no longer exists, what is the best way to
>> go about this?
>
> Well there's hw.conf.chandef.chan now I think, but that can be NULL and
> generic mac80211 code must not use it. There's no single current channel
> any more, you want vif->chanctx or so.

 From looking at the scanning code (line 542 or so), it appears

local->_oper_chandef.chan

might work?

In 3.9, ath9k_htc was giving me a null channel in the code below:

	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
	if (chanctx_conf)
		channel = chanctx_conf->def.chan;
	else
		channel = NULL;


I haven't tried that yet in 3.10 or later, so maybe I don't need the
hw.conf.channel in new code anyway.

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com