From patchwork Wed Jul 13 09:44:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 590810 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22989C433EF for ; Wed, 13 Jul 2022 09:46:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235104AbiGMJp7 (ORCPT ); Wed, 13 Jul 2022 05:45:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235327AbiGMJpT (ORCPT ); Wed, 13 Jul 2022 05:45:19 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0C9CF32E5 for ; Wed, 13 Jul 2022 02:45:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=qzNytJmWPrUXHM/hm/8e2Stxa0vZhtOTNr3wo1oGcxs=; t=1657705518; x=1658915118; b=Z8/TIz3nWBTTseG6nEpdjuXvO4fvIfk4ymmS57BK1YMG0Zm 8av+NNkVE6EawQR+cTVMI/KGneW5pLQIUQToVrASALhrmmYAgRtX44GyBIxn7d2nY9zzhso9GIC43 Z+8SHzMgLXr47O11HYvbX/PFs88W/6/+t9GshVqmbBFt7in4iEz9GZWVi7HWL9mzpC1R030KTQvBU XekDtz16quvYqLCcOMGvqWEWjAOMSR1axtxOIhQ45Qh4skQB4xd2tIPeMIE6EE+21Uoxkhvqjjaw7 95QLO3aJztdBOoLEChKFd4Z6/YO5lDt8ACpWvjiRG87Lf886HPxLwFt/nD0aTjaQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.95) (envelope-from ) id 1oBYvk-00EgvB-1G; Wed, 13 Jul 2022 11:45:16 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 37/76] wifi: mac80211: mlme: use correct link_sta Date: Wed, 13 Jul 2022 11:44:23 +0200 Message-Id: <20220713114425.55b3149a7261.I3ed0c7572e1daf2f1bbc42d490a61f2928fda267@changeid> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220713094502.163926-1-johannes@sipsolutions.net> References: <20220713094502.163926-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg For station capabilities, e.g. TWT, we need to use the correct link station instead of deflink. Switch the code to do that. Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 46 ++++++++++++++++++++++++++++++--------------- 1 file changed, 31 insertions(+), 15 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index fcd964e634d5..7870e3e23e26 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3395,7 +3395,7 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, } } -static bool ieee80211_twt_req_supported(const struct sta_info *sta, +static bool ieee80211_twt_req_supported(const struct link_sta_info *link_sta, const struct ieee802_11_elems *elems) { if (elems->ext_capab_len < 10) @@ -3404,15 +3404,15 @@ static bool ieee80211_twt_req_supported(const struct sta_info *sta, if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT)) return false; - return sta->sta.deflink.he_cap.he_cap_elem.mac_cap_info[0] & + return link_sta->pub->he_cap.he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_TWT_RES; } static int ieee80211_recalc_twt_req(struct ieee80211_link_data *link, - struct sta_info *sta, + struct link_sta_info *link_sta, struct ieee802_11_elems *elems) { - bool twt = ieee80211_twt_req_supported(sta, elems); + bool twt = ieee80211_twt_req_supported(link_sta, elems); if (link->conf->twt_requester != twt) { link->conf->twt_requester = twt; @@ -3424,14 +3424,14 @@ static int ieee80211_recalc_twt_req(struct ieee80211_link_data *link, static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss_conf *bss_conf, struct ieee80211_supported_band *sband, - struct sta_info *sta) + struct link_sta_info *link_sta) { const struct ieee80211_sta_he_cap *own_he_cap = ieee80211_get_he_iftype_cap(sband, ieee80211_vif_type_p2p(&sdata->vif)); return bss_conf->he_support && - (sta->sta.deflink.he_cap.he_cap_elem.mac_cap_info[2] & + (link_sta->pub->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BCAST_TWT) && own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & @@ -3446,6 +3446,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; + struct link_sta_info *link_sta; struct sta_info *sta; u16 capab_info, aid; struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; @@ -3617,6 +3618,14 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, goto out; } + link_sta = rcu_dereference_protected(sta->link[link->link_id], + lockdep_is_held(&local->sta_mtx)); + if (WARN_ON(!link_sta)) { + mutex_unlock(&sdata->local->sta_mtx); + ret = false; + goto out; + } + sband = ieee80211_get_link_sband(link); if (!sband) { mutex_unlock(&sdata->local->sta_mtx); @@ -3637,12 +3646,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (elems->ht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems->ht_cap_elem, - &sta->deflink); + link_sta); if (elems->vht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, elems->vht_cap_elem, - &sta->deflink); + link_sta); if (elems->he_operation && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && elems->he_cap) { @@ -3650,9 +3659,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, elems->he_cap, elems->he_cap_len, elems->he_6ghz_capa, - &sta->deflink); + link_sta); - bss_conf->he_support = sta->sta.deflink.he_cap.has_he; + bss_conf->he_support = link_sta->pub->he_cap.has_he; if (elems->rsnx && elems->rsnx_len && (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) && wiphy_ext_feature_isset(local->hw.wiphy, @@ -3661,7 +3670,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, else bss_conf->twt_protected = false; - changed |= ieee80211_recalc_twt_req(link, sta, elems); + changed |= ieee80211_recalc_twt_req(link, link_sta, elems); if (elems->eht_operation && elems->eht_cap && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { @@ -3684,7 +3693,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, } bss_conf->twt_broadcast = - ieee80211_twt_bcast_support(sdata, bss_conf, sband, sta); + ieee80211_twt_bcast_support(sdata, bss_conf, sband, link_sta); if (bss_conf->he_support) { bss_conf->he_bss_color.color = @@ -3749,7 +3758,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, nss = *elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; nss += 1; - sta->sta.deflink.rx_nss = nss; + link_sta->pub->rx_nss = nss; } rate_control_rate_init(sta); @@ -4190,6 +4199,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; + struct link_sta_info *link_sta; struct sta_info *sta; u32 changed = 0; bool erp_valid; @@ -4431,8 +4441,14 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); + if (WARN_ON(!sta)) + goto free; + link_sta = rcu_dereference_protected(sta->link[link->link_id], + lockdep_is_held(&local->sta_mtx)); + if (WARN_ON(!link_sta)) + goto free; - changed |= ieee80211_recalc_twt_req(link, sta, elems); + changed |= ieee80211_recalc_twt_req(link, link_sta, elems); if (ieee80211_config_bw(link, elems->ht_cap_elem, elems->vht_cap_elem, elems->ht_operation, @@ -4454,7 +4470,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, } if (sta && elems->opmode_notif) - ieee80211_vht_handle_opmode(sdata, &sta->deflink, + ieee80211_vht_handle_opmode(sdata, link_sta, *elems->opmode_notif, rx_status->band); mutex_unlock(&local->sta_mtx);