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authorJohannes Berg <johannes.berg@intel.com>2015-12-08 16:04:37 +0200
committerJohannes Berg <johannes.berg@intel.com>2015-12-15 13:14:04 +0100
commita87da0cbc42949cefc8282c39ab4cb8c460bd6ea (patch)
tree560e17f39b6f62be1f92bb537f652e88521ce960 /net
parent1ea2c864808e525247d2b6cfdb61b93fe669145e (diff)
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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: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/mlme.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b140cc6651f4..f360b7784775 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -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. */
+ 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);
- new_ap_level = pwr_level_cisco;
}
- if (sdata->ap_power_level == new_ap_level)
- return 0;
-
sdata->ap_power_level = new_ap_level;
if (__ieee80211_recalc_txpower(sdata))
return BSS_CHANGED_TXPOWER;