From patchwork Tue Jul 9 15:14:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislaw Gruszka X-Patchwork-Id: 11037139 X-Patchwork-Delegate: nbd@nbd.name 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 D987213B1 for ; Tue, 9 Jul 2019 15:15:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9352280FC for ; Tue, 9 Jul 2019 15:15:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD85D28414; Tue, 9 Jul 2019 15:15:05 +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 6055C280FC for ; Tue, 9 Jul 2019 15:15:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726855AbfGIPPE (ORCPT ); Tue, 9 Jul 2019 11:15:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23010 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726055AbfGIPPE (ORCPT ); Tue, 9 Jul 2019 11:15:04 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 467262EED00; Tue, 9 Jul 2019 15:15:04 +0000 (UTC) Received: from localhost (ovpn-204-53.brq.redhat.com [10.40.204.53]) by smtp.corp.redhat.com (Postfix) with ESMTP id D3628871C3; Tue, 9 Jul 2019 15:15:03 +0000 (UTC) From: Stanislaw Gruszka To: linux-wireless@vger.kernel.org Cc: Felix Fietkau , Lorenzo Bianconi Subject: [PATCH v2 2/2] mt76: usb: remove unneeded {put,get}_unaligned Date: Tue, 9 Jul 2019 17:14:55 +0200 Message-Id: <20190709151455.24003-3-sgruszka@redhat.com> In-Reply-To: <20190709151455.24003-1-sgruszka@redhat.com> References: <20190709151455.24003-1-sgruszka@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Tue, 09 Jul 2019 15:15:04 +0000 (UTC) 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 Compiler give us guaranties on variables alignment, so use an variable as buffer when read/write registers and remove unneeded {put,get}_unaligned. Signed-off-by: Stanislaw Gruszka --- drivers/net/wireless/mediatek/mt76/mt76.h | 5 ++++- drivers/net/wireless/mediatek/mt76/usb.c | 8 ++++---- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 56bf93a8988e..094e6e543542 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -389,7 +389,10 @@ enum mt76u_out_ep { #define MCU_RESP_URB_SIZE 1024 struct mt76_usb { struct mutex usb_ctrl_mtx; - u8 data[32]; + union { + u8 data[32]; + __le32 reg_val; + }; struct tasklet_struct rx_tasklet; struct delayed_work stat_work; diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c index 828939e78a3b..00069c2536f8 100644 --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -95,9 +95,9 @@ static u32 __mt76u_rr(struct mt76_dev *dev, u32 addr) ret = __mt76u_vendor_request(dev, req, USB_DIR_IN | USB_TYPE_VENDOR, - 0, offset, usb->data, sizeof(__le32)); + 0, offset, &usb->reg_val, sizeof(__le32)); if (ret == sizeof(__le32)) - data = get_unaligned_le32(usb->data); + data = le32_to_cpu(usb->reg_val); trace_usb_reg_rr(dev, addr, data); return data; @@ -131,10 +131,10 @@ static void __mt76u_wr(struct mt76_dev *dev, u32 addr, u32 val) } offset = addr & ~MT_VEND_TYPE_MASK; - put_unaligned_le32(val, usb->data); + usb->reg_val = cpu_to_le32(val); __mt76u_vendor_request(dev, req, USB_DIR_OUT | USB_TYPE_VENDOR, 0, - offset, usb->data, sizeof(__le32)); + offset, &usb->reg_val, sizeof(__le32)); trace_usb_reg_wr(dev, addr, val); }