Commit a87da0cb authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: suppress unchanged "limiting TX power" messages 

When the AP is advertising limited TX power, the message can be
printed over and over again. Suppress it when the power level
isn't changing.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=106011



Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 1ea2c864

net/mac80211/mlme.c

+10 −5
Original line number Diff line number Diff line
@@ -1379,21 +1379,26 @@ static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, 
	 */

	if (has_80211h_pwr &&

	    (!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) {

		new_ap_level = pwr_level_80211h;



		if (sdata->ap_power_level == new_ap_level)

			return 0;



		sdata_dbg(sdata,

			  "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n",

			  pwr_level_80211h, chan_pwr, pwr_reduction_80211h,

			  sdata->u.mgd.bssid);

		new_ap_level = pwr_level_80211h;

	} else {  /* has_cisco_pwr is always true here. */

		sdata_dbg(sdata,

			  "Limiting TX power to %d dBm as advertised by %pM\n",

			  pwr_level_cisco, sdata->u.mgd.bssid);

		new_ap_level = pwr_level_cisco;

	}



		if (sdata->ap_power_level == new_ap_level)

			return 0;



		sdata_dbg(sdata,

			  "Limiting TX power to %d dBm as advertised by %pM\n",

			  pwr_level_cisco, sdata->u.mgd.bssid);

	}



	sdata->ap_power_level = new_ap_level;

	if (__ieee80211_recalc_txpower(sdata))

		return BSS_CHANGED_TXPOWER;