From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 E7A1CC43603 for ; Tue, 10 Dec 2019 21:36:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B27E42073B for ; Tue, 10 Dec 2019 21:36:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576013782; bh=eGZb0mLut5CLjKtIi5QfNOaQefvgGgYuUtmdojA4tRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xEoumUWSNWapuHi2e3DzZHex1xfHrUYi66QKHpz01tQe23t0+a7xHZYAqdM2eGwp/ s2SPJH/t48fgOac/vX6hlZBlPrkW7YmPeSGnjO/0asTBEkTC52OpUoTIjo+VcFK+BS 4pT7vpWg6Du1TOHVb835tyk4yudOL8eVqR1LYoKM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730398AbfLJVfw (ORCPT ); Tue, 10 Dec 2019 16:35:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:41864 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730377AbfLJVft (ORCPT ); Tue, 10 Dec 2019 16:35:49 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BFF2C24654; Tue, 10 Dec 2019 21:35:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576013748; bh=eGZb0mLut5CLjKtIi5QfNOaQefvgGgYuUtmdojA4tRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=y6SMdv2XcMsDV0NUofEn0WxRkoTtQfYQPCblmRYSvCCcSkZ2C5GwAKg4VqCTM3B/F LamB7Ry5MudgQ3CpWpTnqkdQET/rWs05Wi7cl9oj3TZenr2cPnsprHSlpGnosiOREQ JVumMHkYs5ze+5RP5pA+LIX1edOkuJryKIh5yk3E= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Thomas Pedersen , Johannes Berg , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 170/177] mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED Date: Tue, 10 Dec 2019 16:32:14 -0500 Message-Id: <20191210213221.11921-170-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210213221.11921-1-sashal@kernel.org> References: <20191210213221.11921-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Thomas Pedersen [ Upstream commit 08a5bdde3812993cb8eb7aa9124703df0de28e4b ] Commit 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing") let STAs send QoS Null frames as PS triggers if the AP was a QoS STA. However, the mac80211 PS stack relies on an interface flag IEEE80211_STA_NULLFUNC_ACKED for determining trigger frame ACK, which was not being set for acked non-QoS Null frames. The effect is an inability to trigger hardware sleep via IEEE80211_CONF_PS since the QoS Null frame was seemingly never acked. This bug only applies to drivers which set both IEEE80211_HW_REPORTS_TX_ACK_STATUS and IEEE80211_HW_PS_NULLFUNC_STACK. Detect the acked QoS Null frame to restore STA power save. Fixes: 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing") Signed-off-by: Thomas Pedersen Link: https://lore.kernel.org/r/20191119053538.25979-4-thomas@adapt-ip.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/status.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 534a604b75c26..f895c656407b5 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -867,7 +867,8 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw, I802_DEBUG_INC(local->dot11FailedCount); } - if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc) && + if ((ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) && + ieee80211_has_pm(fc) && ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) && !(info->flags & IEEE80211_TX_CTL_INJECTED) && local->ps_sdata && !(local->scanning)) { -- 2.20.1