From patchwork Thu Aug 22 07:33:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 11108591 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C61381399 for ; Thu, 22 Aug 2019 07:33:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A4FE0233FC for ; Thu, 22 Aug 2019 07:33:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="MweCc1qK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731611AbfHVHdH (ORCPT ); Thu, 22 Aug 2019 03:33:07 -0400 Received: from nbd.name ([46.4.11.11]:48310 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727875AbfHVHdH (ORCPT ); Thu, 22 Aug 2019 03:33:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc: MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=4UbZBAtKMdW9eRXallmw+x2PGiUizCpLIyoNyqs2rEA=; b=MweCc1qK3ifgmIPM0kON22XDS9 hLnx2ExvgUtO1Ci7ANCuaYmriAY598HZb5ziH+FjeyTckDRjyP2bkyfq5AGSfmzV2RERzODpMrrkF 2RqZMXVeulUNf0KRDJk//BZ8A9CRyTqXNoltjG6tabKV4SGe7WsbVeoHFlLfjmvzfldc=; Received: from p54ae9443.dip0.t-ipconnect.de ([84.174.148.67] helo=maeck.local) by ds12 with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1i0hak-0002gv-0U for linux-wireless@vger.kernel.org; Thu, 22 Aug 2019 09:33:06 +0200 Received: by maeck.local (Postfix, from userid 501) id 7967A63FD13D; Thu, 22 Aug 2019 09:33:05 +0200 (CEST) From: Felix Fietkau To: linux-wireless@vger.kernel.org Subject: [PATCH 1/2] mt76: dma: reset q->rx_head on rx reset Date: Thu, 22 Aug 2019 09:33:04 +0200 Message-Id: <20190822073305.37840-1-nbd@nbd.name> X-Mailer: git-send-email 2.17.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Fixes rx of the first frame if a fragmented rx was interrupted by the reset Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/dma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 46f5223b4d89..c747eb24581c 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -431,6 +431,12 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid) mt76_dma_rx_cleanup(dev, q); mt76_dma_sync_idx(dev, q); mt76_dma_rx_fill(dev, q); + + if (!q->rx_head) + return; + + dev_kfree_skb(q->rx_head); + q->rx_head = NULL; } static void