Jerome Pouiller <Jerome.Pouiller@xxxxxxxxxx> writes: > +static bool ieee80211_is_action_back(struct ieee80211_hdr *hdr) > +{ > + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)hdr; > + > + if (!ieee80211_is_action(mgmt->frame_control)) > + return false; > + if (mgmt->u.action.category != WLAN_CATEGORY_BACK) > + return false; > + return true; > +} Don't use ieee80211_ prefix within a driver, it's reserved for mac80211. Use wfx_ instead. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches