From patchwork Thu Sep 29 15:16:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Greear X-Patchwork-Id: 611342 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 4DA09C433F5 for ; Thu, 29 Sep 2022 15:16:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235808AbiI2PQp (ORCPT ); Thu, 29 Sep 2022 11:16:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234729AbiI2PQn (ORCPT ); Thu, 29 Sep 2022 11:16:43 -0400 Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [67.231.154.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA8BC14D4A1 for ; Thu, 29 Sep 2022 08:16:42 -0700 (PDT) X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us1.ppe-hosted.com (unknown [10.110.51.27]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTPS id 217AA2005E for ; Thu, 29 Sep 2022 15:16:41 +0000 (UTC) Received: from mail3.candelatech.com (mail2.candelatech.com [208.74.158.173]) by mx1-us1.ppe-hosted.com (PPE Hosted ESMTP Server) with ESMTP id DBB156000A4 for ; Thu, 29 Sep 2022 15:16:40 +0000 (UTC) Received: from ben-dt4.candelatech.com (50-251-239-81-static.hfc.comcastbusiness.net [50.251.239.81]) by mail3.candelatech.com (Postfix) with ESMTP id 5C77213C2B0; Thu, 29 Sep 2022 08:16:40 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 mail3.candelatech.com 5C77213C2B0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=candelatech.com; s=default; t=1664464600; bh=x94MHH0KixgXP/6uAeqXtWk+ZT9HATZ5HpwhoHQ5Qio=; h=From:To:Cc:Subject:Date:From; b=hRt65Tdy8owhZZl6AkCKYK3xzAE2cFsfMVrVA50VPAU5zDQlrigzoG3jHJm3oE3XB eJuz7T+6D/Lcr57gZ428yDptLr6VOm0m8+w4u5wSJc3wfGc34DojxW3E3qwp6tnEyT 2Wf67xEXAYLb+CYzxXaDmbVkh3Zras2FTcklQheI= From: greearb@candelatech.com To: linux-wireless@vger.kernel.org Cc: Ben Greear Subject: [PATCH] wifi: mac80211: fix EHT issue in ieee80211_determine_chantype Date: Thu, 29 Sep 2022 08:16:38 -0700 Message-Id: <20220929151638.9823-1-greearb@candelatech.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-MDID: 1664464601-gMM-s-TitvDb Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Ben Greear The IEEE80211_STA_DISABLE_EHT flag was not enabled when it should be, so the bandwidth change failed, and STA disconnected. Use an OR approach instead of just assinging the flags, to allow easier setting of certain flags such as the EHT one. Signed-off-by: Ben Greear --- net/mac80211/mlme.c | 63 ++++++++++++++++++++++----------------------- 1 file changed, 31 insertions(+), 32 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 011827137da7..9ac99f48c63b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -167,7 +167,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct cfg80211_chan_def vht_chandef; struct ieee80211_sta_ht_cap sta_ht_cap; - u32 ht_cfreq, ret; + u32 ht_cfreq; + u32 ret = 0; memset(chandef, 0, sizeof(struct cfg80211_chan_def)); chandef->chan = channel; @@ -175,17 +176,18 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, chandef->center_freq1 = channel->center_freq; chandef->freq1_offset = channel->freq_offset; + if (!eht_oper) + ret |= IEEE80211_STA_DISABLE_EHT; + if (channel->band == NL80211_BAND_6GHZ) { if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper, chandef)) { mlme_dbg(sdata, "bad 6 GHz operation, disabling HT/VHT/HE/EHT\n"); - ret = IEEE80211_STA_DISABLE_HT | - IEEE80211_STA_DISABLE_VHT | - IEEE80211_STA_DISABLE_HE | - IEEE80211_STA_DISABLE_EHT; - } else { - ret = 0; + ret |= IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_VHT | + IEEE80211_STA_DISABLE_HE | + IEEE80211_STA_DISABLE_EHT; } vht_chandef = *chandef; goto out; @@ -196,10 +198,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, chandef->width = ieee80211_s1g_channel_width(channel); } - ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_40MHZ | - IEEE80211_STA_DISABLE_VHT | - IEEE80211_STA_DISABLE_80P80MHZ | - IEEE80211_STA_DISABLE_160MHZ; + ret |= IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_40MHZ | + IEEE80211_STA_DISABLE_VHT | + IEEE80211_STA_DISABLE_80P80MHZ | + IEEE80211_STA_DISABLE_160MHZ; goto out; } @@ -208,10 +210,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!ht_oper || !sta_ht_cap.ht_supported) { mlme_dbg(sdata, "HT operation missing / HT not supported\n"); - ret = IEEE80211_STA_DISABLE_HT | - IEEE80211_STA_DISABLE_VHT | - IEEE80211_STA_DISABLE_HE | - IEEE80211_STA_DISABLE_EHT; + ret |= IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_VHT | + IEEE80211_STA_DISABLE_HE | + IEEE80211_STA_DISABLE_EHT; goto out; } @@ -232,10 +234,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", channel->center_freq, ht_cfreq, ht_oper->primary_chan, channel->band); - ret = IEEE80211_STA_DISABLE_HT | - IEEE80211_STA_DISABLE_VHT | - IEEE80211_STA_DISABLE_HE | - IEEE80211_STA_DISABLE_EHT; + ret |= IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_VHT | + IEEE80211_STA_DISABLE_HE | + IEEE80211_STA_DISABLE_EHT; goto out; } @@ -245,7 +247,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, } else { mlme_dbg(sdata, "40 MHz not supported\n"); /* 40 MHz (and 80 MHz) must be supported for VHT */ - ret = IEEE80211_STA_DISABLE_VHT; + ret |= IEEE80211_STA_DISABLE_VHT; /* also mark 40 MHz disabled */ ret |= IEEE80211_STA_DISABLE_40MHZ; goto out; @@ -253,7 +255,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!vht_oper || !sband->vht_cap.vht_supported) { mlme_dbg(sdata, "VHT operation missing / VHT not supported\n"); - ret = IEEE80211_STA_DISABLE_VHT; + ret |= IEEE80211_STA_DISABLE_VHT; goto out; } @@ -276,7 +278,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) sdata_info(sdata, "HE AP VHT information is invalid, disabling HE\n"); - ret = IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT; + ret |= IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT; goto out; } } else if (!ieee80211_chandef_vht_oper(&sdata->local->hw, @@ -286,7 +288,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) sdata_info(sdata, "AP VHT information is invalid, disabling VHT\n"); - ret = IEEE80211_STA_DISABLE_VHT; + ret |= IEEE80211_STA_DISABLE_VHT; goto out; } @@ -294,12 +296,11 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) sdata_info(sdata, "AP VHT information is invalid, disabling VHT\n"); - ret = IEEE80211_STA_DISABLE_VHT; + ret |= IEEE80211_STA_DISABLE_VHT; goto out; } if (cfg80211_chandef_identical(chandef, &vht_chandef)) { - ret = 0; goto out; } @@ -307,14 +308,12 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) sdata_info(sdata, "AP VHT information doesn't match HT, disabling VHT\n"); - ret = IEEE80211_STA_DISABLE_VHT; + ret |= IEEE80211_STA_DISABLE_VHT; goto out; } *chandef = vht_chandef; - ret = 0; - out: /* * When tracking the current AP, don't do any further checks if the @@ -354,10 +353,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, tracking ? 0 : IEEE80211_CHAN_DISABLED)) { if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { - ret = IEEE80211_STA_DISABLE_HT | - IEEE80211_STA_DISABLE_VHT | - IEEE80211_STA_DISABLE_HE | - IEEE80211_STA_DISABLE_EHT; + ret |= IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_VHT | + IEEE80211_STA_DISABLE_HE | + IEEE80211_STA_DISABLE_EHT; break; }