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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 2EEF5C636C9 for ; Thu, 15 Jul 2021 19:10:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19CC4613DF for ; Thu, 15 Jul 2021 19:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241318AbhGOTM5 (ORCPT ); Thu, 15 Jul 2021 15:12:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:38430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240617AbhGOTAz (ORCPT ); Thu, 15 Jul 2021 15:00:55 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2137561158; Thu, 15 Jul 2021 18:57:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626375463; bh=sJtv/WdN+bUh2CGo+fSl+5fnkGlbnS7mWPAyvRD7Z1Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pgIqmy2PrzJJJ9HARHyKJvHs5dW13niO+YEZac1DiPBzlQ7hAoIRGEEpjW+9FelOC C4Qg9T4CAy8Q01A9/NxtV6bDBAn1t6nvKQpVefvu1k1CKBsU4m2yTbd8iDK5M0JQPI j875Hh00Tf0/GL4QFpOHz25O6LwJ3YbJiQqMeXXc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Felix Fietkau , Sasha Levin Subject: [PATCH 5.12 097/242] mt76: dma: use ieee80211_tx_status_ext to free packets when tx fails Date: Thu, 15 Jul 2021 20:37:39 +0200 Message-Id: <20210715182610.162715896@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210715182551.731989182@linuxfoundation.org> References: <20210715182551.731989182@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Felix Fietkau [ Upstream commit 94e4f5794627a80ce036c35b32a9900daeb31be3 ] Fixes AQL issues on full queues, especially with 802.3 encap offload Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/dma.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 426787f4b2ae..ee0acde53a60 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -349,6 +349,9 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, struct sk_buff *skb, struct mt76_wcid *wcid, struct ieee80211_sta *sta) { + struct ieee80211_tx_status status = { + .sta = sta, + }; struct mt76_tx_info tx_info = { .skb = skb, }; @@ -360,11 +363,9 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, u8 *txwi; t = mt76_get_txwi(dev); - if (!t) { - hw = mt76_tx_status_get_hw(dev, skb); - ieee80211_free_txskb(hw, skb); - return -ENOMEM; - } + if (!t) + goto free_skb; + txwi = mt76_get_txwi_ptr(dev, t); skb->prev = skb->next = NULL; @@ -427,8 +428,13 @@ free: } #endif - dev_kfree_skb(tx_info.skb); mt76_put_txwi(dev, t); + +free_skb: + status.skb = tx_info.skb; + hw = mt76_tx_status_get_hw(dev, tx_info.skb); + ieee80211_tx_status_ext(hw, &status); + return ret; } -- 2.30.2