Commit 1c37a72c authored Mar 03, 2014 by Eliad Peller Committed by Johannes Berg Mar 03, 2014

mac80211: consider virtual mon when calculating min_def



When calculating the current max bw required for
a channel context, we didn't consider the virtual
monitor interface, resulting in its channel context
being narrower than configured.

This broke monitor mode with iwlmvm, which uses the
minimal width.

Reported-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent cb664981

net/mac80211/chan.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -100,6 +100,12 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
		}
		max_bw = max(max_bw, width);
		}

		/* use the configured bandwidth in case of monitor interface */
		sdata = rcu_dereference(local->monitor_sdata);
		if (sdata && rcu_access_pointer(sdata->vif.chanctx_conf) == conf)
		max_bw = max(max_bw, conf->def.width);

		rcu_read_unlock();

		return max_bw;

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