From patchwork Mon Aug 17 15:16:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 266412 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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 A20D4C433DF for ; Mon, 17 Aug 2020 15:57:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 62C482072E for ; Mon, 17 Aug 2020 15:57:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597679838; bh=SrnGT9mFV8mx+n9fnp7oqTYm1Ykr9auihTd+1/BmR7o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=JN76UsiFk+jKBLnDzLyoaptL5SoZkGdBW+6Q3zGC1ngtGUovqvdXoUnc2lyIwuWrG 7Ga681iPW1GyG5RT6xSwRDyZP00WhW4jHMPBoKYN/FpMN0/mwkkkYcwV8JNPtGmkUF oUbZOgLSLf0ZbxvLxOBzlPgurmU3CSYh0TsQRxNI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388102AbgHQP5H (ORCPT ); Mon, 17 Aug 2020 11:57:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:44054 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387578AbgHQP4R (ORCPT ); Mon, 17 Aug 2020 11:56:17 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 964DB214F1; Mon, 17 Aug 2020 15:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597679777; bh=SrnGT9mFV8mx+n9fnp7oqTYm1Ykr9auihTd+1/BmR7o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=v4mE/JoFX6tey03BInvUA7OdZjP6Wg1h1KFr5uvegBeSR2/ddrr+jBoWO+auIBeGg uHSKgLhBR3b4lSB8T1VpnCj+qCl/JjLTslpu9J1SJaikqUmMxtMQ9wOt9XxzZ/F0FB yU0vVJzBmvSdO9R56XQWLSUAVWwG61pP6efZS1Y8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Brant Merryman , Phu Luu , Johan Hovold Subject: [PATCH 5.7 331/393] USB: serial: cp210x: enable usb generic throttle/unthrottle Date: Mon, 17 Aug 2020 17:16:21 +0200 Message-Id: <20200817143835.652817219@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143819.579311991@linuxfoundation.org> References: <20200817143819.579311991@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Brant Merryman commit 4387b3dbb079d482d3c2b43a703ceed4dd27ed28 upstream. Assign the .throttle and .unthrottle functions to be generic function in the driver structure to prevent data loss that can otherwise occur if the host does not enable USB throttling. Signed-off-by: Brant Merryman Co-developed-by: Phu Luu Signed-off-by: Phu Luu Link: https://lore.kernel.org/r/57401AF3-9961-461F-95E1-F8AFC2105F5E@silabs.com [ johan: fix up tags ] Fixes: 39a66b8d22a3 ("[PATCH] USB: CP2101 Add support for flow control") Cc: stable # 2.6.12 Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -272,6 +272,8 @@ static struct usb_serial_driver cp210x_d .break_ctl = cp210x_break_ctl, .set_termios = cp210x_set_termios, .tx_empty = cp210x_tx_empty, + .throttle = usb_serial_generic_throttle, + .unthrottle = usb_serial_generic_unthrottle, .tiocmget = cp210x_tiocmget, .tiocmset = cp210x_tiocmset, .attach = cp210x_attach,