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 F2A24C43331 for ; Wed, 13 Nov 2019 02:27:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1ACD2067B for ; Wed, 13 Nov 2019 02:27:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573612066; bh=IWdzDFSf/TRr9ci4D2Ci/WM12+j7L/sItckgGxtTqy4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ALlBaPSHcSeHOz8UH3BmSzlM0YY0/EfbQIz+z0R6m//MEnDPV57TnIlcZ9w8gmweP Gh4ZchbijPg3GDBe3yT/VeuWc5mxDKV15EkPRcEiJTnfiJKBN4vmqefA+wGv3eyEUg CrpMqrBByTzBO5IfidAkGnkC/DtGDjE4WLwn95XE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729683AbfKMC1p (ORCPT ); Tue, 12 Nov 2019 21:27:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:37832 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727515AbfKMBut (ORCPT ); Tue, 12 Nov 2019 20:50:49 -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 4E9AB22459; Wed, 13 Nov 2019 01:50:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573609849; bh=IWdzDFSf/TRr9ci4D2Ci/WM12+j7L/sItckgGxtTqy4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2EGJ3IgeNfif66fLmlCCb7QOhlMizbXYgtBBsjaZT01ggxyoOgP/yQ2ERsNy13YH9 ILmAjG0W3ZanCb25diiDPOmx9okWGx/goj7rG5GYa1r4Ef6jTS9QGtrniUeAEoNs8g /NkA686EtOpkqeUHvo2YLkCYoXcKTFIIRFiD9rJM= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Felix Fietkau , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 020/209] mt76: fix handling ps-poll frames Date: Tue, 12 Nov 2019 20:47:16 -0500 Message-Id: <20191113015025.9685-20-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191113015025.9685-1-sashal@kernel.org> References: <20191113015025.9685-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Felix Fietkau [ Upstream commit 36d910960fae3f9e74bedf3e0ef39ee26bdaa51f ] Hardware station lookup for pspoll frames can fail, which makes the driver ignore ps-poll frames. Fix the resulting powersave issues by looking up the station for pspoll frames in software Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mac80211.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index ade4a2029a24a..1b5abd4816ed7 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -548,6 +548,12 @@ mt76_check_ps(struct mt76_dev *dev, struct sk_buff *skb) struct mt76_wcid *wcid = status->wcid; bool ps; + if (ieee80211_is_pspoll(hdr->frame_control) && !wcid) { + sta = ieee80211_find_sta_by_ifaddr(dev->hw, hdr->addr2, NULL); + if (sta) + wcid = status->wcid = (struct mt76_wcid *) sta->drv_priv; + } + if (!wcid || !wcid->sta) return; -- 2.20.1