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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 7FC0BC432C0 for ; Fri, 22 Nov 2019 10:59:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D98A2071F for ; Fri, 22 Nov 2019 10:59:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420355; bh=IWdzDFSf/TRr9ci4D2Ci/WM12+j7L/sItckgGxtTqy4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nU29FFdcc1Mo3P9QDKQZsQ5pkKWQxB6u1cIcM6Au+k/l9xTkrR9Lja2CTLpekz5jb w74ONI26XLT7kayyTFc5b7z0Ar9NEQS3roDUIsa9JVhwUXUKWZyg9EFGG1V5yHdr/m VkPLsgNLyEoZG1nC0iJ4RXTENJ8ioxvkIj05Rpdo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730880AbfKVK7N (ORCPT ); Fri, 22 Nov 2019 05:59:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:49936 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730387AbfKVK7L (ORCPT ); Fri, 22 Nov 2019 05:59:11 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4EE1720706; Fri, 22 Nov 2019 10:59:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420350; bh=IWdzDFSf/TRr9ci4D2Ci/WM12+j7L/sItckgGxtTqy4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UBuO29+NCMUhIootlDXcvwYv6X9HK5HjYGvP0XJUMrHQ/J3totu1I7cxyybKj4fYh i5H1/3+8m4VyVy3t/d3KT5ciMtnaCkDPC3C5ElDWVs6I4vLPDtJ1hjKnzSi793ap2n JwCmqs8EPZorYG6JT/OszOHIIz8v+21SvyuMhHMQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Felix Fietkau , Sasha Levin Subject: [PATCH 4.19 033/220] mt76: fix handling ps-poll frames Date: Fri, 22 Nov 2019 11:26:38 +0100 Message-Id: <20191122100914.763259022@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100912.732983531@linuxfoundation.org> References: <20191122100912.732983531@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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