From patchwork Fri Feb 22 14:21:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maya Erez X-Patchwork-Id: 10826105 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1F03F15AC for ; Fri, 22 Feb 2019 14:21:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0E93C327C3 for ; Fri, 22 Feb 2019 14:21:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 024D8327EB; Fri, 22 Feb 2019 14:21:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A776A327E4 for ; Fri, 22 Feb 2019 14:21:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726818AbfBVOV3 (ORCPT ); Fri, 22 Feb 2019 09:21:29 -0500 Received: from alexa-out-ams-01.qualcomm.com ([185.23.61.162]:54040 "EHLO alexa-out-ams-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726663AbfBVOV2 (ORCPT ); Fri, 22 Feb 2019 09:21:28 -0500 X-IronPort-AV: E=Sophos;i="5.58,400,1544482800"; d="scan'208";a="2017371" Received: from ironmsg02-ams.qualcomm.com ([10.251.56.3]) by alexa-out-ams-01.qualcomm.com with ESMTP; 22 Feb 2019 15:21:25 +0100 X-IronPort-AV: E=McAfee;i="5900,7806,9174"; a="7285578" Received: from lx-merez1.mea.qualcomm.com ([10.18.173.103]) by ironmsg02-ams.qualcomm.com with ESMTP; 22 Feb 2019 15:21:25 +0100 From: Maya Erez To: Kalle Valo Cc: Dedy Lansky , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, Maya Erez Subject: [PATCH 05/21] wil6210: fix invalid sta statistics update Date: Fri, 22 Feb 2019 16:21:03 +0200 Message-Id: <1550845279-16103-6-git-send-email-merez@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1550845279-16103-1-git-send-email-merez@codeaurora.org> References: <1550845279-16103-1-git-send-email-merez@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dedy Lansky Upon status ring handling, in case there are both unicast and multicast (cid == max) status messages to handle, wrong sta statistics might get updated. Fix this by setting stats to NULL upon invalid cid (e.g. == max_assoc_sta). Signed-off-by: Dedy Lansky Signed-off-by: Maya Erez --- drivers/net/wireless/ath/wil6210/txrx_edma.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c index c09cd69..c387738 100644 --- a/drivers/net/wireless/ath/wil6210/txrx_edma.c +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c @@ -1137,7 +1137,7 @@ int wil_tx_sring_handler(struct wil6210_priv *wil, /* Total number of completed descriptors in all descriptor rings */ int desc_cnt = 0; int cid; - struct wil_net_stats *stats = NULL; + struct wil_net_stats *stats; struct wil_tx_enhanced_desc *_d; unsigned int ring_id; unsigned int num_descs; @@ -1187,8 +1187,7 @@ int wil_tx_sring_handler(struct wil6210_priv *wil, ndev = vif_to_ndev(vif); cid = wil->ring2cid_tid[ring_id][0]; - if (cid < max_assoc_sta) - stats = &wil->sta[cid].stats; + stats = (cid < max_assoc_sta ? &wil->sta[cid].stats : NULL); wil_dbg_txrx(wil, "tx_status: completed desc_ring (%d), num_descs (%d)\n",