From patchwork Fri Sep 17 23:59:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12503303 X-Patchwork-Delegate: nbd@nbd.name 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, 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 DDF01C433FE for ; Sat, 18 Sep 2021 00:09:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C495D60F51 for ; Sat, 18 Sep 2021 00:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344930AbhIRALK (ORCPT ); Fri, 17 Sep 2021 20:11:10 -0400 Received: from mailgw01.mediatek.com ([216.200.240.184]:35280 "EHLO mailgw01.mediatek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343928AbhIRALJ (ORCPT ); Fri, 17 Sep 2021 20:11:09 -0400 X-UUID: c9b6834ee2014495b4bb059cb39aaaa9-20210917 X-UUID: c9b6834ee2014495b4bb059cb39aaaa9-20210917 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1399411720; Fri, 17 Sep 2021 17:09:45 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 17 Sep 2021 17:00:08 -0700 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 18 Sep 2021 08:00:08 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v2 08/16] mt76: mt7921: make all event parser reusable between mt7921s and mt7921e Date: Sat, 18 Sep 2021 07:59:24 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Sean Wang The longer event such as the event for mcu_get_nic_capability would hold the data in paged fragment skb for the SDIO device so we turn the skb to be linearized skb before accessing it to reuse the same event parser betweem mt7921s and mt7921e. Tested-by: Deren Wu Signed-off-by: Sean Wang --- drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 866b8797f16e..863781895652 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -456,7 +456,14 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) { - struct mt7921_mcu_rxd *rxd = (struct mt7921_mcu_rxd *)skb->data; + struct mt7921_mcu_rxd *rxd; + int ret; + + ret = skb_linearize(skb); + if (ret) + return; + + rxd = (struct mt7921_mcu_rxd *)skb->data; if (rxd->eid == 0x6) { mt76_mcu_rx_event(&dev->mt76, skb);