From patchwork Wed Jun 10 09:18:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 6578091 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 519EEC0020 for ; Wed, 10 Jun 2015 09:20:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 83A51205CB for ; Wed, 10 Jun 2015 09:20:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 87AB8205C2 for ; Wed, 10 Jun 2015 09:20:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933450AbbFJJTY (ORCPT ); Wed, 10 Jun 2015 05:19:24 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:50401 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932533AbbFJJTE (ORCPT ); Wed, 10 Jun 2015 05:19:04 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id t5A9J2LS028971; Wed, 10 Jun 2015 04:19:02 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t5A9J1qa015969; Wed, 10 Jun 2015 04:19:02 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.224.2; Wed, 10 Jun 2015 04:19:01 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t5A9IudL031800; Wed, 10 Jun 2015 04:18:59 -0500 From: Kishon Vijay Abraham I To: , , , CC: , , Subject: [PATCH 1/5] usb: dwc3: ep0: use _roundup_ to calculate the transfer size Date: Wed, 10 Jun 2015 14:48:48 +0530 Message-ID: <1433927932-32395-2-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1433927932-32395-1-git-send-email-kishon@ti.com> References: <1433927932-32395-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP No functional change. Used _roundup_ macro to calculate the transfer size aligned to maxpacket in dwc3_ep0_complete_data. It also makes it similar to how transfer size is calculated in __dwc3_ep0_do_control_data. Signed-off-by: Kishon Vijay Abraham I --- drivers/usb/dwc3/ep0.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 8858c60..713e46a 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -812,10 +812,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, length = trb->size & DWC3_TRB_SIZE_MASK; if (dwc->ep0_bounced) { - unsigned transfer_size = ur->length; unsigned maxp = ep0->endpoint.maxpacket; - - transfer_size += (maxp - (transfer_size % maxp)); + unsigned transfer_size = roundup(ur->length, maxp); /* Maximum of DWC3_EP0_BOUNCE_SIZE can only be received */ if (transfer_size > DWC3_EP0_BOUNCE_SIZE)