From patchwork Sat Mar 6 12:06:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangkun X-Patchwork-Id: 12119951 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 20F3FC433DB for ; Sat, 6 Mar 2021 12:09:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA9DE64FE8 for ; Sat, 6 Mar 2021 12:09:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230213AbhCFMId (ORCPT ); Sat, 6 Mar 2021 07:08:33 -0500 Received: from m12-18.163.com ([220.181.12.18]:59979 "EHLO m12-18.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229969AbhCFMIG (ORCPT ); Sat, 6 Mar 2021 07:08:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id; bh=G1CefTDUOphs/ju8OA 6vyhQmbezCTp81UWY6mcWD6gQ=; b=mjwnRbe+WDUGtNAbQWTX+J8i/F5lFCJAzp N9qSPWCeEFdtZPUPNAsxa240gwQk0ev4bIGpYm1D/7vy1dsNdWSJ00F2WtTeKLMX L6yte7D/eDFhnv7ub1GUEFSDPRV36C762BZ4UUHvu4uX/FaRORoROnu+VeasZVnM NjQd2Bv1E= Received: from localhost.localdomain (unknown [36.170.36.204]) by smtp14 (Coremail) with SMTP id EsCowADX0vB9cENg7OF3XQ--.29206S2; Sat, 06 Mar 2021 20:07:26 +0800 (CST) From: zhangkun4jr@163.com To: Mathias Nyman Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Zhang Kun Subject: [PATCH] xhci: Remove unused value len from xhci_unmap_temp_buf Date: Sat, 6 Mar 2021 20:06:44 +0800 Message-Id: <20210306120644.74406-1-zhangkun4jr@163.com> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: EsCowADX0vB9cENg7OF3XQ--.29206S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKrWkZrWxXryUGw4DXryxKrg_yoWDGFc_Cr 93Ar1kC3yDGw1qvr12yanFv3yqka18Xrs7WFs2vF15ua4Utas8ZF1rAFykXa4rGF48JFsI qw15WrW8tr10vjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU5Ta0JUUUUU== X-Originating-IP: [36.170.36.204] X-CM-SenderInfo: x2kd0whnxqkyru6rljoofrz/1tbiqh1NtVr7sWPVMgAAsb Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Zhang Kun The value assigned to len by sg_pcopy_from_buffer() never used for anything, so remove it. Signed-off-by: Zhang Kun --- drivers/usb/host/xhci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index bd27bd670104..6ebda89d476c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1335,7 +1335,6 @@ static bool xhci_urb_temp_buffer_required(struct usb_hcd *hcd, static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb) { - unsigned int len; unsigned int buf_len; enum dma_data_direction dir; @@ -1351,7 +1350,7 @@ static void xhci_unmap_temp_buf(struct usb_hcd *hcd, struct urb *urb) dir); if (usb_urb_dir_in(urb)) - len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, + sg_pcopy_from_buffer(urb->sg, urb->num_sgs, urb->transfer_buffer, buf_len, 0);