From patchwork Sat Jun 19 10:15:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 464188 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 583F9C2B9F4 for ; Sat, 19 Jun 2021 10:15:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2FDD5610C7 for ; Sat, 19 Jun 2021 10:15:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229819AbhFSKRe (ORCPT ); Sat, 19 Jun 2021 06:17:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229475AbhFSKRd (ORCPT ); Sat, 19 Jun 2021 06:17:33 -0400 Received: from nbd.name (nbd.name [IPv6:2a01:4f8:221:3d45::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E582CC061574 for ; Sat, 19 Jun 2021 03:15:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject :Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=SNAVihxQYbyMpRT+vpo/a+0PTnkeVQdReZvO5389od0=; b=s6rR2N7e6lwH17YXweTwTbZOXx O2Ryjl/Ik4QAWNJwqN+kuIxKIsXXO8D231ZkyuqRgp2Q3U19OGBJHV/u6Enmbkkru2pBwCAraxX3D f9ofh9D46PMEYzbFG2i1i9cuCuNXixTDGsf+lAMkGvoTb+d5Z9wcMfNaIFv5cBb4ubr8=; Received: from p54ae9ff2.dip0.t-ipconnect.de ([84.174.159.242] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1luY0V-0003oU-Dv; Sat, 19 Jun 2021 12:15:19 +0200 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net Subject: [PATCH] mac80211: remove iwlwifi specific workaround that broke sta NDP tx Date: Sat, 19 Jun 2021 12:15:17 +0200 Message-Id: <20210619101517.90806-1-nbd@nbd.name> X-Mailer: git-send-email 2.30.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Sending nulldata packets is important for sw AP link probing and detecting 4-address mode links. The checks that dropped these packets were apparently added to work around an iwlwifi firmware bug with multi-TID aggregation. Fixes: 41cbb0f5a295 ("mac80211: add support for HE") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 3 +++ net/mac80211/mlme.c | 9 --------- 2 files changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 1ad621d13ad3..0a13c2bda2ee 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -1032,6 +1032,9 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA)) return -1; + if (unlikely(ieee80211_is_any_nullfunc(fc)) && sta->he_cap.has_he) + return -1; + if (unlikely(ieee80211_is_probe_resp(fc))) iwl_mvm_probe_resp_set_noa(mvm, skb); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 2480bd0577bb..eda1e979120f 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1094,11 +1094,6 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, struct ieee80211_hdr_3addr *nullfunc; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - /* Don't send NDPs when STA is connected HE */ - if (sdata->vif.type == NL80211_IFTYPE_STATION && - !(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) - return; - skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP)); if (!skb) @@ -1130,10 +1125,6 @@ static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) return; - /* Don't send NDPs when connected HE */ - if (!(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE)) - return; - skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); if (!skb) return;