1 files changed, 21 insertions, 0 deletions

diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 8396b5a77e8d..8d4ec2968f8f 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -161,3 +161,24 @@ void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
                           jiffies + msecs_to_jiffies(sw_elem->count * bss->beacon_int));
         }
 }
+
+void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+                                 u16 capab_info, u8 *pwr_constr_elem,
+                                 u8 pwr_constr_elem_len)
+{
+        struct ieee80211_conf *conf = &sdata->local->hw.conf;
+
+        if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
+                return;
+
+        /* Power constraint IE length should be 1 octet */
+        if (pwr_constr_elem_len != 1)
+                return;
+
+        if ((*pwr_constr_elem <= conf->channel->max_power) &&
+            (*pwr_constr_elem != sdata->local->power_constr_level)) {
+                sdata->local->power_constr_level = *pwr_constr_elem;
+                ieee80211_hw_config(sdata->local, 0);
+        }
+}
+