On Mon, 2013-07-08 at 11:20 -0700, Ben Greear wrote: > 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? No, don't use that in any new code. It's purely for compatibility with drivers that aren't converted to channel contexts (yet). > 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; Well that of course happens if the vif isn't bound to a channel context. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
