From patchwork Mon Apr 5 08:54:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 415834 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=-18.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 EAB3AC43460 for ; Mon, 5 Apr 2021 08:57:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B924361394 for ; Mon, 5 Apr 2021 08:57:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233214AbhDEI5b (ORCPT ); Mon, 5 Apr 2021 04:57:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:36882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232671AbhDEI52 (ORCPT ); Mon, 5 Apr 2021 04:57:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F2A6161393; Mon, 5 Apr 2021 08:57:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617613042; bh=jkpm1jRPbd6eolbAWaB0SK4IN7tLnQeelbZ+bKD1WK8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QR0hULOU+i2j1QebqGU56OOK8ulM2OBYgBu6FsfKifTRIkGHM0jrujLpyFSkfqdNG bDLfLXcyP7A3twh3EEcHjtnyTaApt+7LY+/32zkNr2Mn6E3PhwHBtx1QoMy4l34C1l GGOdT2SC2gVsy1XPWwtPhILMw9+2XxS6/z9kOFE0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bruno Thomsen , Oliver Neukum Subject: [PATCH 4.9 30/35] USB: cdc-acm: downgrade message to debug Date: Mon, 5 Apr 2021 10:54:05 +0200 Message-Id: <20210405085019.818603234@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210405085018.871387942@linuxfoundation.org> References: <20210405085018.871387942@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Oliver Neukum commit e4c77070ad45fc940af1d7fb1e637c349e848951 upstream. This failure is so common that logging an error here amounts to spamming log files. Reviewed-by: Bruno Thomsen Signed-off-by: Oliver Neukum Cc: stable Link: https://lore.kernel.org/r/20210311130126.15972-2-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -543,7 +543,8 @@ static void acm_port_dtr_rts(struct tty_ res = acm_set_control(acm, val); if (res && (acm->ctrl_caps & USB_CDC_CAP_LINE)) - dev_err(&acm->control->dev, "failed to set dtr/rts\n"); + /* This is broken in too many devices to spam the logs */ + dev_dbg(&acm->control->dev, "failed to set dtr/rts\n"); } static int acm_port_activate(struct tty_port *port, struct tty_struct *tty)