From patchwork Mon Apr 27 13:44:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sathishkumar Muruganandam X-Patchwork-Id: 215803 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 73B45C54FD0 for ; Mon, 27 Apr 2020 13:45:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4ED31206B6 for ; Mon, 27 Apr 2020 13:45:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="L4kZ+OK2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727888AbgD0NpR (ORCPT ); Mon, 27 Apr 2020 09:45:17 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:61441 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726539AbgD0NpR (ORCPT ); Mon, 27 Apr 2020 09:45:17 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1587995116; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=7ICCT2+tbWtu868EIqFl223/Mq5QcoeFd0GbK4KNJUA=; b=L4kZ+OK22NqutTTARCN1ytIAJDkh2beZMj53i95dgtEMiEBWv1nVijcyBe9MZurjze5q5PaI ASj3m6zkaVNlS+G6q1lHV3SrHLD9cwOOpekPhJfXa7ht7DnaZmB1WJJcTGwKOQzY9l7Mn7EY 0uL/TJ3fvFem2OTcMVyHcx1jgzY= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5ea6e1eb.7f7765c107d8-smtp-out-n02; Mon, 27 Apr 2020 13:45:15 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 0BF23C433D2; Mon, 27 Apr 2020 13:45:15 +0000 (UTC) Received: from murugana-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: murugana) by smtp.codeaurora.org (Postfix) with ESMTPSA id 6E5F2C433CB; Mon, 27 Apr 2020 13:45:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6E5F2C433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=murugana@codeaurora.org From: Sathishkumar Muruganandam To: ath11k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Sathishkumar Muruganandam Subject: [PATCH v3 1/2] ath11k: fix mgmt_tx_wmi cmd sent to FW for deleted vdev Date: Mon, 27 Apr 2020 19:14:54 +0530 Message-Id: <1587995095-7808-2-git-send-email-murugana@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1587995095-7808-1-git-send-email-murugana@codeaurora.org> References: <1587995095-7808-1-git-send-email-murugana@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org In Multi-AP VAP scenario with frequent interface up-down, there is a chance that ath11k_mgmt_over_wmi_tx_work() will dequeue a skb corresponding to currently deleted/stopped vdev. FW will assert on receiving mgmt_tx_wmi cmd for already deleted vdev. Hence adding validation checks for arvif present on the corresponding ar before sending mgmt_tx_wmi cmd. Signed-off-by: Sathishkumar Muruganandam --- drivers/net/wireless/ath/ath11k/mac.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 065b7d6d4ab2..2b3a63ac216c 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -3793,15 +3793,30 @@ static void ath11k_mgmt_over_wmi_tx_work(struct work_struct *work) while ((skb = skb_dequeue(&ar->wmi_mgmt_tx_queue)) != NULL) { info = IEEE80211_SKB_CB(skb); - arvif = ath11k_vif_to_arvif(info->control.vif); - - ret = ath11k_mac_mgmt_tx_wmi(ar, arvif, skb); - if (ret) { - ath11k_warn(ar->ab, "failed to transmit management frame %d\n", - ret); + if (!info->control.vif) { + ath11k_warn(ar->ab, "no vif found for mgmt frame, flags 0x%x\n", + info->control.flags); ieee80211_free_txskb(ar->hw, skb); + continue; + } + + arvif = ath11k_vif_to_arvif(info->control.vif); + if (ar->allocated_vdev_map & (1LL << arvif->vdev_id) && + arvif->is_started) { + ret = ath11k_mac_mgmt_tx_wmi(ar, arvif, skb); + if (ret) { + ath11k_warn(ar->ab, "failed to tx mgmt frame, vdev_id %d :%d\n", + arvif->vdev_id, ret); + ieee80211_free_txskb(ar->hw, skb); + } else { + atomic_inc(&ar->num_pending_mgmt_tx); + } } else { - atomic_inc(&ar->num_pending_mgmt_tx); + ath11k_warn(ar->ab, + "dropping mgmt frame for vdev %d, flags 0x%x is_started %d\n", + arvif->vdev_id, info->control.flags, + arvif->is_started); + ieee80211_free_txskb(ar->hw, skb); } } }