On Friday 01 June 2012 12:43 PM, Johannes Berg wrote:
On Fri, 2012-06-01 at 12:39 +0530, Mohammed Shafi Shajakhan wrote:
Hi Johannes,
On Friday 01 June 2012 12:14 PM, Johannes Berg wrote:
On Fri, 2012-06-01 at 12:09 +0530, Mohammed Shafi Shajakhan wrote:
From: Mohammed Shafi Shajakhan<[email protected]>
In ath9k we make sure the following two things
*if the first interface is ADHOC we cannot have any other interface.
*we cannot add an ADHOC interface if there is already an interface
is present.
- if ((ah->opmode == NL80211_IFTYPE_ADHOC) ||
- ((vif->type == NL80211_IFTYPE_ADHOC)&&
- sc->nvifs> 0)) {
- ath_err(common, "Cannot create ADHOC interface when other"
- " interfaces already exist.\n");
+ if ((ah->opmode == NL80211_IFTYPE_ADHOC)&& (sc->nvifs> 0)) {
+ ath_err(common, "Cannot create any other interface when an ADHOC
interface already exists.\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if ((vif->type == NL80211_IFTYPE_ADHOC)&& (sc->nvifs> 0)) {
+ ath_err(common, "Cannot create ADHOC interface when other interfaces
already exist.\n");
You could just remove the entire check since the interface combinations
you advertise don't allow it, I think? Or just fix those
combinations :-)
i did not check this before, thanks a lot for your inputs. will send a
proper v2 after checking this out.
If this is needed for stable, you might want to keep this patch& send
another one to remove it.
thanks Johannes.
i was looking at how to fix this properly in iface combination
advertised to mac80211. got few doubts regarding this
*if an interface type is not all advertised in the
ieee80211_iface_combination then it cannot it be co-existing with any
other interfaces ?
please let me know is there some other way do that.
if we advertise something like this
static const struct ieee80211_iface_limit if_limits[] = {
{set1
.... },
{set 2
.... },
};
then interface types in set1 and set2 co-exist as per the logic in
cfg80211_can_change_interface. is there already a way we can make
set1 and set2 interface types mutually exclusive ? thanks!
--
thanks,
shafi
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