From patchwork Wed Jan 13 11:20:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 362586 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=-16.8 required=3.0 tests=BAYES_00, 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 9FE5DC43381 for ; Wed, 13 Jan 2021 11:22:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 59A5823383 for ; Wed, 13 Jan 2021 11:22:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726882AbhAMLVw (ORCPT ); Wed, 13 Jan 2021 06:21:52 -0500 Received: from mx2.suse.de ([195.135.220.15]:41060 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728292AbhAMLVs (ORCPT ); Wed, 13 Jan 2021 06:21:48 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 624B1AF2D; Wed, 13 Jan 2021 11:21:06 +0000 (UTC) From: Nicolas Saenz Julienne To: Paul Zimmerman , Felipe Balbi , Greg Kroah-Hartman , Nick Hudson , linux-usb@vger.kernel.org, Minas Harutyunyan Cc: linux@roeck-us.net, dianders@chromium.org, Nicolas Saenz Julienne , linux-kernel@vger.kernel.org Subject: [PATCH 3/3] usb: dwc2: Make "trimming xfer length" a debug message Date: Wed, 13 Jan 2021 12:20:51 +0100 Message-Id: <20210113112052.17063-4-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210113112052.17063-1-nsaenzjulienne@suse.de> References: <20210113112052.17063-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Guenter Roeck With some USB network adapters, such as DM96xx, the following message is seen for each maximum size receive packet. dwc2 ff540000.usb: dwc2_update_urb_state(): trimming xfer length This happens because the packet size requested by the driver is 1522 bytes, wMaxPacketSize is 64, the dwc2 driver configures the chip to receive 24*64 = 1536 bytes, and the chip does indeed send more than 1522 bytes of data. Since the event does not indicate an error condition, the message is just noise. Demote it to debug level. Signed-off-by: Guenter Roeck Reviewed-by: Douglas Anderson Fixes: 7359d482eb4d3 ("staging: HCD files for the DWC2 driver") Signed-off-by: Nicolas Saenz Julienne Tested-by: Nicolas Saenz Julienne --- drivers/usb/dwc2/hcd_intr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index 12819e019e13..d5f4ec1b73b1 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -500,7 +500,7 @@ static int dwc2_update_urb_state(struct dwc2_hsotg *hsotg, &short_read); if (urb->actual_length + xfer_length > urb->length) { - dev_warn(hsotg->dev, "%s(): trimming xfer length\n", __func__); + dev_dbg(hsotg->dev, "%s(): trimming xfer length\n", __func__); xfer_length = urb->length - urb->actual_length; }