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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>
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1 changed files with 10 additions and 5 deletions
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@ -1379,21 +1379,26 @@ static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
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*/
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if (has_80211h_pwr &&
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(!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) {
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new_ap_level = pwr_level_80211h;
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if (sdata->ap_power_level == new_ap_level)
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return 0;
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sdata_dbg(sdata,
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"Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n",
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pwr_level_80211h, chan_pwr, pwr_reduction_80211h,
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sdata->u.mgd.bssid);
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new_ap_level = pwr_level_80211h;
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} else { /* has_cisco_pwr is always true here. */
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new_ap_level = pwr_level_cisco;
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if (sdata->ap_power_level == new_ap_level)
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return 0;
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sdata_dbg(sdata,
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"Limiting TX power to %d dBm as advertised by %pM\n",
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pwr_level_cisco, sdata->u.mgd.bssid);
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new_ap_level = pwr_level_cisco;
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}
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if (sdata->ap_power_level == new_ap_level)
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return 0;
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sdata->ap_power_level = new_ap_level;
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if (__ieee80211_recalc_txpower(sdata))
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return BSS_CHANGED_TXPOWER;
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